/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 00:30:16,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 00:30:16,692 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 00:30:16,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 00:30:16,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 00:30:16,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 00:30:16,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 00:30:16,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 00:30:16,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 00:30:16,721 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 00:30:16,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 00:30:16,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 00:30:16,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 00:30:16,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 00:30:16,722 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 00:30:16,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 00:30:16,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 00:30:16,723 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 00:30:16,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 00:30:16,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 00:30:16,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 00:30:16,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 00:30:16,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 00:30:16,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 00:30:16,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 00:30:16,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 00:30:16,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 00:30:16,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 00:30:16,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 00:30:16,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 00:30:16,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 00:30:16,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 00:30:16,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:30:16,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 00:30:16,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 00:30:16,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 00:30:16,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 00:30:16,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 00:30:16,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 00:30:16,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 00:30:16,728 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 00:30:16,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 00:30:16,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 00:30:16,734 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 00:30:16,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 00:30:16,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 00:30:16,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 00:30:16,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 00:30:16,885 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 00:30:16,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c [2023-12-16 00:30:17,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 00:30:18,132 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 00:30:18,132 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c [2023-12-16 00:30:18,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80eb23bb4/e74a93590e7c4ee58e22cbad3297db97/FLAG989cc2693 [2023-12-16 00:30:18,154 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80eb23bb4/e74a93590e7c4ee58e22cbad3297db97 [2023-12-16 00:30:18,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 00:30:18,157 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 00:30:18,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 00:30:18,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 00:30:18,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 00:30:18,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38de3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18, skipping insertion in model container [2023-12-16 00:30:18,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,211 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 00:30:18,370 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c[44628,44641] [2023-12-16 00:30:18,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:30:18,389 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 00:30:18,425 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_srvr_3a_alt.BV.c.cil.c[44628,44641] [2023-12-16 00:30:18,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 00:30:18,440 INFO L206 MainTranslator]: Completed translation [2023-12-16 00:30:18,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18 WrapperNode [2023-12-16 00:30:18,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 00:30:18,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 00:30:18,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 00:30:18,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 00:30:18,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,451 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,480 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 592 [2023-12-16 00:30:18,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 00:30:18,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 00:30:18,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 00:30:18,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 00:30:18,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,506 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]. [2023-12-16 00:30:18,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 00:30:18,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 00:30:18,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 00:30:18,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 00:30:18,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (1/1) ... [2023-12-16 00:30:18,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 00:30:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:18,585 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) [2023-12-16 00:30:18,594 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 [2023-12-16 00:30:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 00:30:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 00:30:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 00:30:18,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 00:30:18,689 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 00:30:18,691 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 00:30:18,703 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-16 00:30:19,162 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2023-12-16 00:30:19,163 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2023-12-16 00:30:19,163 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 00:30:19,227 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 00:30:19,227 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 00:30:19,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:30:19 BoogieIcfgContainer [2023-12-16 00:30:19,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 00:30:19,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 00:30:19,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 00:30:19,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 00:30:19,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:30:18" (1/3) ... [2023-12-16 00:30:19,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ef2e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:30:19, skipping insertion in model container [2023-12-16 00:30:19,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:30:18" (2/3) ... [2023-12-16 00:30:19,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ef2e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:30:19, skipping insertion in model container [2023-12-16 00:30:19,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:30:19" (3/3) ... [2023-12-16 00:30:19,236 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a_alt.BV.c.cil.c [2023-12-16 00:30:19,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 00:30:19,249 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 00:30:19,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 00:30:19,300 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;@335e2d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 00:30:19,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 00:30:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 130 states have (on average 1.7769230769230768) internal successors, (231), 131 states have internal predecessors, (231), 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) [2023-12-16 00:30:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 00:30:19,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:19,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:19,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:19,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash 599934849, now seen corresponding path program 1 times [2023-12-16 00:30:19,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:19,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844777750] [2023-12-16 00:30:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:19,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:30:19,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:19,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844777750] [2023-12-16 00:30:19,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844777750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:19,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:19,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 00:30:19,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161487492] [2023-12-16 00:30:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:19,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:19,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:19,596 INFO L87 Difference]: Start difference. First operand has 132 states, 130 states have (on average 1.7769230769230768) internal successors, (231), 131 states have internal predecessors, (231), 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) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2023-12-16 00:30:19,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:19,842 INFO L93 Difference]: Finished difference Result 281 states and 494 transitions. [2023-12-16 00:30:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:19,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-12-16 00:30:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:19,851 INFO L225 Difference]: With dead ends: 281 [2023-12-16 00:30:19,851 INFO L226 Difference]: Without dead ends: 143 [2023-12-16 00:30:19,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:19,858 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 28 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:19,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 341 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 00:30:19,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-16 00:30:19,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2023-12-16 00:30:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 139 states have internal predecessors, (213), 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) [2023-12-16 00:30:19,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 213 transitions. [2023-12-16 00:30:19,902 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 213 transitions. Word has length 42 [2023-12-16 00:30:19,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:19,902 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 213 transitions. [2023-12-16 00:30:19,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2023-12-16 00:30:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 213 transitions. [2023-12-16 00:30:19,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 00:30:19,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:19,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:19,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 00:30:19,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:19,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2039634291, now seen corresponding path program 1 times [2023-12-16 00:30:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:19,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665266635] [2023-12-16 00:30:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 00:30:19,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:19,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665266635] [2023-12-16 00:30:19,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665266635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:19,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:19,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:19,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429383555] [2023-12-16 00:30:19,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:19,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:19,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:19,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:19,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:19,959 INFO L87 Difference]: Start difference. First operand 140 states and 213 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-12-16 00:30:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:20,062 INFO L93 Difference]: Finished difference Result 297 states and 458 transitions. [2023-12-16 00:30:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:20,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-16 00:30:20,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:20,066 INFO L225 Difference]: With dead ends: 297 [2023-12-16 00:30:20,067 INFO L226 Difference]: Without dead ends: 164 [2023-12-16 00:30:20,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,070 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 14 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:20,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 277 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-16 00:30:20,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2023-12-16 00:30:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.4968553459119496) internal successors, (238), 159 states have internal predecessors, (238), 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) [2023-12-16 00:30:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2023-12-16 00:30:20,089 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 57 [2023-12-16 00:30:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:20,089 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2023-12-16 00:30:20,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-12-16 00:30:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2023-12-16 00:30:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 00:30:20,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:20,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:20,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 00:30:20,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:20,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:20,091 INFO L85 PathProgramCache]: Analyzing trace with hash -701811559, now seen corresponding path program 1 times [2023-12-16 00:30:20,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:20,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446142313] [2023-12-16 00:30:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:20,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 00:30:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446142313] [2023-12-16 00:30:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446142313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582526423] [2023-12-16 00:30:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:20,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,193 INFO L87 Difference]: Start difference. First operand 160 states and 238 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2023-12-16 00:30:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:20,362 INFO L93 Difference]: Finished difference Result 358 states and 547 transitions. [2023-12-16 00:30:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:20,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-16 00:30:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:20,363 INFO L225 Difference]: With dead ends: 358 [2023-12-16 00:30:20,363 INFO L226 Difference]: Without dead ends: 205 [2023-12-16 00:30:20,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,364 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 15 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:20,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 274 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 00:30:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-16 00:30:20,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 201. [2023-12-16 00:30:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.42) internal successors, (284), 200 states have internal predecessors, (284), 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) [2023-12-16 00:30:20,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 284 transitions. [2023-12-16 00:30:20,385 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 284 transitions. Word has length 77 [2023-12-16 00:30:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:20,386 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 284 transitions. [2023-12-16 00:30:20,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2023-12-16 00:30:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 284 transitions. [2023-12-16 00:30:20,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 00:30:20,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:20,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:20,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 00:30:20,402 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:20,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:20,402 INFO L85 PathProgramCache]: Analyzing trace with hash -278164837, now seen corresponding path program 1 times [2023-12-16 00:30:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:20,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112543423] [2023-12-16 00:30:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:20,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 00:30:20,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:20,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112543423] [2023-12-16 00:30:20,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112543423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:20,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:20,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:20,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305597848] [2023-12-16 00:30:20,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:20,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:20,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:20,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:20,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,489 INFO L87 Difference]: Start difference. First operand 201 states and 284 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2023-12-16 00:30:20,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:20,574 INFO L93 Difference]: Finished difference Result 420 states and 602 transitions. [2023-12-16 00:30:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:20,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-16 00:30:20,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:20,589 INFO L225 Difference]: With dead ends: 420 [2023-12-16 00:30:20,589 INFO L226 Difference]: Without dead ends: 226 [2023-12-16 00:30:20,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,590 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 13 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:20,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 293 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:20,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-16 00:30:20,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 223. [2023-12-16 00:30:20,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.4009009009009008) internal successors, (311), 222 states have internal predecessors, (311), 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) [2023-12-16 00:30:20,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 311 transitions. [2023-12-16 00:30:20,602 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 311 transitions. Word has length 77 [2023-12-16 00:30:20,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:20,602 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 311 transitions. [2023-12-16 00:30:20,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2023-12-16 00:30:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 311 transitions. [2023-12-16 00:30:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 00:30:20,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:20,604 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:20,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 00:30:20,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:20,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash 383528677, now seen corresponding path program 1 times [2023-12-16 00:30:20,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:20,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921094675] [2023-12-16 00:30:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:20,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 00:30:20,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:20,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921094675] [2023-12-16 00:30:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921094675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:20,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:20,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758357615] [2023-12-16 00:30:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:20,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:20,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:20,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,669 INFO L87 Difference]: Start difference. First operand 223 states and 311 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-12-16 00:30:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:20,740 INFO L93 Difference]: Finished difference Result 476 states and 677 transitions. [2023-12-16 00:30:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-12-16 00:30:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:20,742 INFO L225 Difference]: With dead ends: 476 [2023-12-16 00:30:20,742 INFO L226 Difference]: Without dead ends: 260 [2023-12-16 00:30:20,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,752 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:20,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 292 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-16 00:30:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 247. [2023-12-16 00:30:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.3821138211382114) internal successors, (340), 246 states have internal predecessors, (340), 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) [2023-12-16 00:30:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 340 transitions. [2023-12-16 00:30:20,758 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 340 transitions. Word has length 96 [2023-12-16 00:30:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:20,758 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 340 transitions. [2023-12-16 00:30:20,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-12-16 00:30:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 340 transitions. [2023-12-16 00:30:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 00:30:20,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:20,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:20,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 00:30:20,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:20,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:20,759 INFO L85 PathProgramCache]: Analyzing trace with hash -84974088, now seen corresponding path program 1 times [2023-12-16 00:30:20,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:20,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980658764] [2023-12-16 00:30:20,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:20,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 00:30:20,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:20,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980658764] [2023-12-16 00:30:20,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980658764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:20,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:20,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:20,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619117346] [2023-12-16 00:30:20,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:20,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,850 INFO L87 Difference]: Start difference. First operand 247 states and 340 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-16 00:30:20,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:20,874 INFO L93 Difference]: Finished difference Result 721 states and 992 transitions. [2023-12-16 00:30:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:20,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-16 00:30:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:20,876 INFO L225 Difference]: With dead ends: 721 [2023-12-16 00:30:20,877 INFO L226 Difference]: Without dead ends: 481 [2023-12-16 00:30:20,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,879 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 130 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:20,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 443 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:30:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-12-16 00:30:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2023-12-16 00:30:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.3708333333333333) internal successors, (658), 480 states have internal predecessors, (658), 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) [2023-12-16 00:30:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 658 transitions. [2023-12-16 00:30:20,896 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 658 transitions. Word has length 116 [2023-12-16 00:30:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:20,897 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 658 transitions. [2023-12-16 00:30:20,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-16 00:30:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 658 transitions. [2023-12-16 00:30:20,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 00:30:20,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:20,899 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:20,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 00:30:20,899 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:20,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash 163172406, now seen corresponding path program 1 times [2023-12-16 00:30:20,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:20,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059340032] [2023-12-16 00:30:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:20,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 00:30:20,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059340032] [2023-12-16 00:30:20,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059340032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:20,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:20,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:20,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112067472] [2023-12-16 00:30:20,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:20,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:20,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:20,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,956 INFO L87 Difference]: Start difference. First operand 481 states and 658 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2023-12-16 00:30:20,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:20,991 INFO L93 Difference]: Finished difference Result 1191 states and 1631 transitions. [2023-12-16 00:30:20,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:20,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-16 00:30:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:20,994 INFO L225 Difference]: With dead ends: 1191 [2023-12-16 00:30:20,994 INFO L226 Difference]: Without dead ends: 717 [2023-12-16 00:30:20,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:20,998 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 132 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:20,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 474 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:30:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-12-16 00:30:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2023-12-16 00:30:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.3673184357541899) internal successors, (979), 716 states have internal predecessors, (979), 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) [2023-12-16 00:30:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 979 transitions. [2023-12-16 00:30:21,010 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 979 transitions. Word has length 116 [2023-12-16 00:30:21,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:21,010 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 979 transitions. [2023-12-16 00:30:21,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2023-12-16 00:30:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 979 transitions. [2023-12-16 00:30:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 00:30:21,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:21,012 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:21,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 00:30:21,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:21,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1729930356, now seen corresponding path program 1 times [2023-12-16 00:30:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:21,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103066854] [2023-12-16 00:30:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:21,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 00:30:21,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:21,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103066854] [2023-12-16 00:30:21,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103066854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:21,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:21,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:21,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819023236] [2023-12-16 00:30:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:21,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:21,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:21,057 INFO L87 Difference]: Start difference. First operand 717 states and 979 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-16 00:30:21,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:21,079 INFO L93 Difference]: Finished difference Result 1450 states and 1976 transitions. [2023-12-16 00:30:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:21,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-16 00:30:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:21,081 INFO L225 Difference]: With dead ends: 1450 [2023-12-16 00:30:21,081 INFO L226 Difference]: Without dead ends: 740 [2023-12-16 00:30:21,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:21,083 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 10 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:21,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 371 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:30:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-16 00:30:21,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2023-12-16 00:30:21,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 1.3626522327469552) internal successors, (1007), 739 states have internal predecessors, (1007), 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) [2023-12-16 00:30:21,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1007 transitions. [2023-12-16 00:30:21,096 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1007 transitions. Word has length 116 [2023-12-16 00:30:21,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:21,096 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 1007 transitions. [2023-12-16 00:30:21,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-12-16 00:30:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1007 transitions. [2023-12-16 00:30:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 00:30:21,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:21,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:21,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 00:30:21,097 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:21,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash -667540174, now seen corresponding path program 1 times [2023-12-16 00:30:21,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:21,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737889726] [2023-12-16 00:30:21,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:21,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-16 00:30:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:21,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737889726] [2023-12-16 00:30:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737889726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:21,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:21,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 00:30:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402761383] [2023-12-16 00:30:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:21,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:21,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:21,129 INFO L87 Difference]: Start difference. First operand 740 states and 1007 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 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) [2023-12-16 00:30:21,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:21,148 INFO L93 Difference]: Finished difference Result 1485 states and 2016 transitions. [2023-12-16 00:30:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:21,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-12-16 00:30:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:21,153 INFO L225 Difference]: With dead ends: 1485 [2023-12-16 00:30:21,154 INFO L226 Difference]: Without dead ends: 752 [2023-12-16 00:30:21,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:21,156 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 6 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:21,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 353 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:30:21,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-16 00:30:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2023-12-16 00:30:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.3568575233022637) internal successors, (1019), 751 states have internal predecessors, (1019), 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) [2023-12-16 00:30:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1019 transitions. [2023-12-16 00:30:21,167 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1019 transitions. Word has length 116 [2023-12-16 00:30:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:21,167 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 1019 transitions. [2023-12-16 00:30:21,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 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) [2023-12-16 00:30:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1019 transitions. [2023-12-16 00:30:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 00:30:21,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:21,169 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:21,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 00:30:21,169 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:21,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:21,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1802199356, now seen corresponding path program 1 times [2023-12-16 00:30:21,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:21,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019694988] [2023-12-16 00:30:21,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:21,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:21,181 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:21,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1539993529] [2023-12-16 00:30:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:21,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:21,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:21,184 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) [2023-12-16 00:30:21,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 00:30:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:21,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:21,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 00:30:21,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:21,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019694988] [2023-12-16 00:30:21,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539993529] [2023-12-16 00:30:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539993529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:21,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:21,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:21,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858595942] [2023-12-16 00:30:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:21,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:21,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:21,377 INFO L87 Difference]: Start difference. First operand 752 states and 1019 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2023-12-16 00:30:21,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:21,621 INFO L93 Difference]: Finished difference Result 1599 states and 2214 transitions. [2023-12-16 00:30:21,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:21,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2023-12-16 00:30:21,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:21,623 INFO L225 Difference]: With dead ends: 1599 [2023-12-16 00:30:21,623 INFO L226 Difference]: Without dead ends: 866 [2023-12-16 00:30:21,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:21,624 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 34 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:21,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 279 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 00:30:21,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2023-12-16 00:30:21,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 832. [2023-12-16 00:30:21,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 831 states have (on average 1.3417569193742478) internal successors, (1115), 831 states have internal predecessors, (1115), 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) [2023-12-16 00:30:21,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1115 transitions. [2023-12-16 00:30:21,651 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1115 transitions. Word has length 153 [2023-12-16 00:30:21,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:21,652 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1115 transitions. [2023-12-16 00:30:21,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2023-12-16 00:30:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1115 transitions. [2023-12-16 00:30:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 00:30:21,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:21,654 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:21,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 00:30:21,879 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,SelfDestructingSolverStorable9 [2023-12-16 00:30:21,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:21,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:21,880 INFO L85 PathProgramCache]: Analyzing trace with hash 819169439, now seen corresponding path program 1 times [2023-12-16 00:30:21,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:21,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429876374] [2023-12-16 00:30:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:21,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:21,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:21,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605508] [2023-12-16 00:30:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:21,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:21,913 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) [2023-12-16 00:30:21,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 00:30:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:22,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:22,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-16 00:30:22,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:22,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429876374] [2023-12-16 00:30:22,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:22,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605508] [2023-12-16 00:30:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:22,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:22,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:22,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135429543] [2023-12-16 00:30:22,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:22,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:22,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:22,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:22,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:22,027 INFO L87 Difference]: Start difference. First operand 832 states and 1115 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2023-12-16 00:30:22,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:22,156 INFO L93 Difference]: Finished difference Result 1812 states and 2497 transitions. [2023-12-16 00:30:22,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:22,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2023-12-16 00:30:22,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:22,160 INFO L225 Difference]: With dead ends: 1812 [2023-12-16 00:30:22,161 INFO L226 Difference]: Without dead ends: 996 [2023-12-16 00:30:22,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:22,162 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 158 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:22,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 145 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:22,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2023-12-16 00:30:22,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 982. [2023-12-16 00:30:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 1.3934760448521917) internal successors, (1367), 981 states have internal predecessors, (1367), 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) [2023-12-16 00:30:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1367 transitions. [2023-12-16 00:30:22,178 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1367 transitions. Word has length 164 [2023-12-16 00:30:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:22,178 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 1367 transitions. [2023-12-16 00:30:22,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2023-12-16 00:30:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1367 transitions. [2023-12-16 00:30:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-16 00:30:22,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:22,181 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:22,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:22,401 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,SelfDestructingSolverStorable10 [2023-12-16 00:30:22,402 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:22,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash 931817078, now seen corresponding path program 1 times [2023-12-16 00:30:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:22,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806356808] [2023-12-16 00:30:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:22,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:22,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:22,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635511074] [2023-12-16 00:30:22,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:22,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:22,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:22,414 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) [2023-12-16 00:30:22,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 00:30:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:22,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:22,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:22,564 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-12-16 00:30:22,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:22,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:22,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806356808] [2023-12-16 00:30:22,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:22,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635511074] [2023-12-16 00:30:22,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635511074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:22,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:22,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:22,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290487822] [2023-12-16 00:30:22,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:22,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:22,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:22,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:22,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:22,566 INFO L87 Difference]: Start difference. First operand 982 states and 1367 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2023-12-16 00:30:22,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:22,674 INFO L93 Difference]: Finished difference Result 2071 states and 2939 transitions. [2023-12-16 00:30:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:22,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2023-12-16 00:30:22,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:22,677 INFO L225 Difference]: With dead ends: 2071 [2023-12-16 00:30:22,678 INFO L226 Difference]: Without dead ends: 1075 [2023-12-16 00:30:22,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:22,679 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:22,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 286 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:22,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2023-12-16 00:30:22,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1072. [2023-12-16 00:30:22,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.3800186741363212) internal successors, (1478), 1071 states have internal predecessors, (1478), 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) [2023-12-16 00:30:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1478 transitions. [2023-12-16 00:30:22,702 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1478 transitions. Word has length 194 [2023-12-16 00:30:22,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:22,702 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1478 transitions. [2023-12-16 00:30:22,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2023-12-16 00:30:22,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1478 transitions. [2023-12-16 00:30:22,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-16 00:30:22,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:22,705 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:22,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:22,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:22,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:22,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:22,929 INFO L85 PathProgramCache]: Analyzing trace with hash -856858588, now seen corresponding path program 1 times [2023-12-16 00:30:22,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:22,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765958677] [2023-12-16 00:30:22,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:22,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:22,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:22,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127268805] [2023-12-16 00:30:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:22,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:22,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:22,960 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) [2023-12-16 00:30:22,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 00:30:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:23,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:23,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-12-16 00:30:23,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:23,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765958677] [2023-12-16 00:30:23,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127268805] [2023-12-16 00:30:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127268805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:23,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:23,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:23,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607479965] [2023-12-16 00:30:23,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:23,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:23,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:23,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:23,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:23,107 INFO L87 Difference]: Start difference. First operand 1072 states and 1478 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-12-16 00:30:23,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:23,197 INFO L93 Difference]: Finished difference Result 2215 states and 3044 transitions. [2023-12-16 00:30:23,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:23,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2023-12-16 00:30:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:23,201 INFO L225 Difference]: With dead ends: 2215 [2023-12-16 00:30:23,201 INFO L226 Difference]: Without dead ends: 1070 [2023-12-16 00:30:23,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:23,203 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 9 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:23,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 293 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-12-16 00:30:23,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1070. [2023-12-16 00:30:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1069 states have (on average 1.373246024321796) internal successors, (1468), 1069 states have internal predecessors, (1468), 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) [2023-12-16 00:30:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1468 transitions. [2023-12-16 00:30:23,220 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1468 transitions. Word has length 248 [2023-12-16 00:30:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:23,220 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1468 transitions. [2023-12-16 00:30:23,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-12-16 00:30:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1468 transitions. [2023-12-16 00:30:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-16 00:30:23,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:23,223 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:23,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 00:30:23,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:23,429 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:23,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:23,429 INFO L85 PathProgramCache]: Analyzing trace with hash -720481218, now seen corresponding path program 1 times [2023-12-16 00:30:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138913579] [2023-12-16 00:30:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:23,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:23,444 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:23,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653504459] [2023-12-16 00:30:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:23,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:23,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:23,445 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) [2023-12-16 00:30:23,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 00:30:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:23,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 00:30:23,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-12-16 00:30:23,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:23,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:23,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138913579] [2023-12-16 00:30:23,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:23,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653504459] [2023-12-16 00:30:23,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653504459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:23,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:23,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:23,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739034663] [2023-12-16 00:30:23,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:23,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:23,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:23,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:23,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:23,924 INFO L87 Difference]: Start difference. First operand 1070 states and 1468 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2023-12-16 00:30:23,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:23,948 INFO L93 Difference]: Finished difference Result 3059 states and 4225 transitions. [2023-12-16 00:30:23,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:23,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2023-12-16 00:30:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:23,952 INFO L225 Difference]: With dead ends: 3059 [2023-12-16 00:30:23,953 INFO L226 Difference]: Without dead ends: 1359 [2023-12-16 00:30:23,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:23,955 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 118 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:23,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 501 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 00:30:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-12-16 00:30:23,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1357. [2023-12-16 00:30:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.3761061946902655) internal successors, (1866), 1356 states have internal predecessors, (1866), 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) [2023-12-16 00:30:23,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1866 transitions. [2023-12-16 00:30:23,972 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1866 transitions. Word has length 260 [2023-12-16 00:30:23,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:23,972 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1866 transitions. [2023-12-16 00:30:23,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2023-12-16 00:30:23,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1866 transitions. [2023-12-16 00:30:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-16 00:30:23,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:23,975 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:24,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:24,180 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,SelfDestructingSolverStorable13 [2023-12-16 00:30:24,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:24,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:24,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2082913281, now seen corresponding path program 1 times [2023-12-16 00:30:24,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:24,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21150531] [2023-12-16 00:30:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:24,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:24,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:24,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21150531] [2023-12-16 00:30:24,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 00:30:24,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879175243] [2023-12-16 00:30:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:24,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:24,206 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) [2023-12-16 00:30:24,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 00:30:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:24,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:24,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-12-16 00:30:24,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:24,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879175243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:24,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:24,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:24,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465374662] [2023-12-16 00:30:24,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:24,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:24,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:24,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:24,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:24,367 INFO L87 Difference]: Start difference. First operand 1357 states and 1866 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2023-12-16 00:30:24,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:24,559 INFO L93 Difference]: Finished difference Result 2895 states and 4059 transitions. [2023-12-16 00:30:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:24,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2023-12-16 00:30:24,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:24,563 INFO L225 Difference]: With dead ends: 2895 [2023-12-16 00:30:24,563 INFO L226 Difference]: Without dead ends: 1513 [2023-12-16 00:30:24,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:24,565 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 94 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:24,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 185 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 00:30:24,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2023-12-16 00:30:24,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1461. [2023-12-16 00:30:24,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 1.4013698630136986) internal successors, (2046), 1460 states have internal predecessors, (2046), 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) [2023-12-16 00:30:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2046 transitions. [2023-12-16 00:30:24,585 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2046 transitions. Word has length 304 [2023-12-16 00:30:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:24,585 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 2046 transitions. [2023-12-16 00:30:24,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2023-12-16 00:30:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2046 transitions. [2023-12-16 00:30:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-16 00:30:24,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:24,588 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:24,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:24,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-16 00:30:24,799 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:24,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:24,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2126608307, now seen corresponding path program 1 times [2023-12-16 00:30:24,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:24,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607051739] [2023-12-16 00:30:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:24,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:24,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:24,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453816003] [2023-12-16 00:30:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:24,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:24,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:24,856 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:24,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 00:30:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:24,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:24,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:25,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 651 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-16 00:30:25,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:25,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:25,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607051739] [2023-12-16 00:30:25,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:25,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453816003] [2023-12-16 00:30:25,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453816003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:25,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:25,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:25,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223512146] [2023-12-16 00:30:25,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:25,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:25,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:25,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:25,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:25,034 INFO L87 Difference]: Start difference. First operand 1461 states and 2046 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2023-12-16 00:30:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:25,194 INFO L93 Difference]: Finished difference Result 3079 states and 4375 transitions. [2023-12-16 00:30:25,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:25,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2023-12-16 00:30:25,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:25,205 INFO L225 Difference]: With dead ends: 3079 [2023-12-16 00:30:25,205 INFO L226 Difference]: Without dead ends: 1593 [2023-12-16 00:30:25,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:25,207 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 97 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:25,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 174 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:25,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2023-12-16 00:30:25,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1573. [2023-12-16 00:30:25,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1572 states have (on average 1.4262086513994912) internal successors, (2242), 1572 states have internal predecessors, (2242), 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) [2023-12-16 00:30:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2242 transitions. [2023-12-16 00:30:25,237 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2242 transitions. Word has length 327 [2023-12-16 00:30:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:25,237 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2242 transitions. [2023-12-16 00:30:25,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2023-12-16 00:30:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2242 transitions. [2023-12-16 00:30:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-12-16 00:30:25,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:25,240 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:25,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-16 00:30:25,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:25,446 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:25,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:25,447 INFO L85 PathProgramCache]: Analyzing trace with hash 885067638, now seen corresponding path program 2 times [2023-12-16 00:30:25,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:25,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839671860] [2023-12-16 00:30:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:25,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:25,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:25,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839671860] [2023-12-16 00:30:25,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 00:30:25,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920986225] [2023-12-16 00:30:25,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 00:30:25,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:25,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:25,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:25,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 00:30:25,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 00:30:25,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 00:30:25,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:25,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 577 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2023-12-16 00:30:25,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:25,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920986225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:25,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:25,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:25,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610126420] [2023-12-16 00:30:25,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:25,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:25,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:25,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:25,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:25,649 INFO L87 Difference]: Start difference. First operand 1573 states and 2242 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-12-16 00:30:25,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:25,764 INFO L93 Difference]: Finished difference Result 3251 states and 4661 transitions. [2023-12-16 00:30:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:25,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 331 [2023-12-16 00:30:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:25,769 INFO L225 Difference]: With dead ends: 3251 [2023-12-16 00:30:25,769 INFO L226 Difference]: Without dead ends: 1681 [2023-12-16 00:30:25,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:25,770 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 64 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:25,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 265 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:25,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2023-12-16 00:30:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1677. [2023-12-16 00:30:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1676 states have (on average 1.3448687350835322) internal successors, (2254), 1676 states have internal predecessors, (2254), 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) [2023-12-16 00:30:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2254 transitions. [2023-12-16 00:30:25,790 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2254 transitions. Word has length 331 [2023-12-16 00:30:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:25,790 INFO L495 AbstractCegarLoop]: Abstraction has 1677 states and 2254 transitions. [2023-12-16 00:30:25,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-12-16 00:30:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2254 transitions. [2023-12-16 00:30:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-12-16 00:30:25,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:25,794 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:25,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:25,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-16 00:30:26,000 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:26,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash -558152038, now seen corresponding path program 1 times [2023-12-16 00:30:26,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:26,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690775279] [2023-12-16 00:30:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:26,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:26,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690775279] [2023-12-16 00:30:26,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 00:30:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503080538] [2023-12-16 00:30:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:26,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:26,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:26,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:26,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 00:30:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:26,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 00:30:26,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-16 00:30:26,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 00:30:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 860 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-12-16 00:30:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503080538] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 00:30:26,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 00:30:26,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 00:30:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931061477] [2023-12-16 00:30:26,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 00:30:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:30:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:26,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:30:26,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:30:26,307 INFO L87 Difference]: Start difference. First operand 1677 states and 2254 transitions. Second operand has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-12-16 00:30:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:26,729 INFO L93 Difference]: Finished difference Result 5290 states and 7115 transitions. [2023-12-16 00:30:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 00:30:26,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358 [2023-12-16 00:30:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:26,738 INFO L225 Difference]: With dead ends: 5290 [2023-12-16 00:30:26,738 INFO L226 Difference]: Without dead ends: 3549 [2023-12-16 00:30:26,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-16 00:30:26,742 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 697 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:26,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 554 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 00:30:26,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2023-12-16 00:30:26,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 2211. [2023-12-16 00:30:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2210 states have (on average 1.388235294117647) internal successors, (3068), 2210 states have internal predecessors, (3068), 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) [2023-12-16 00:30:26,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3068 transitions. [2023-12-16 00:30:26,779 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3068 transitions. Word has length 358 [2023-12-16 00:30:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:26,779 INFO L495 AbstractCegarLoop]: Abstraction has 2211 states and 3068 transitions. [2023-12-16 00:30:26,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2023-12-16 00:30:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3068 transitions. [2023-12-16 00:30:26,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2023-12-16 00:30:26,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:26,782 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:26,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-16 00:30:26,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-16 00:30:26,988 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:26,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 117658192, now seen corresponding path program 1 times [2023-12-16 00:30:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:26,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088826147] [2023-12-16 00:30:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:27,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:27,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088826147] [2023-12-16 00:30:27,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 00:30:27,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516168850] [2023-12-16 00:30:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:27,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:27,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:27,026 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:27,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 00:30:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:27,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 00:30:27,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 1260 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2023-12-16 00:30:27,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:27,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516168850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:27,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:27,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:27,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859789693] [2023-12-16 00:30:27,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:27,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:27,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:27,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:27,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:27,213 INFO L87 Difference]: Start difference. First operand 2211 states and 3068 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2023-12-16 00:30:27,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:27,364 INFO L93 Difference]: Finished difference Result 4718 states and 6536 transitions. [2023-12-16 00:30:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:27,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 455 [2023-12-16 00:30:27,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:27,370 INFO L225 Difference]: With dead ends: 4718 [2023-12-16 00:30:27,371 INFO L226 Difference]: Without dead ends: 2526 [2023-12-16 00:30:27,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:27,373 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 11 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:27,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 289 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:27,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2023-12-16 00:30:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2508. [2023-12-16 00:30:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 2507 states have (on average 1.360191463901077) internal successors, (3410), 2507 states have internal predecessors, (3410), 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) [2023-12-16 00:30:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 3410 transitions. [2023-12-16 00:30:27,411 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 3410 transitions. Word has length 455 [2023-12-16 00:30:27,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:27,411 INFO L495 AbstractCegarLoop]: Abstraction has 2508 states and 3410 transitions. [2023-12-16 00:30:27,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2023-12-16 00:30:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 3410 transitions. [2023-12-16 00:30:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2023-12-16 00:30:27,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:27,414 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:27,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:27,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:27,620 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:27,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:27,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1422952528, now seen corresponding path program 1 times [2023-12-16 00:30:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:27,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938960489] [2023-12-16 00:30:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:27,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:27,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:27,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938960489] [2023-12-16 00:30:27,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 00:30:27,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301889539] [2023-12-16 00:30:27,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:27,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:27,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 00:30:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:27,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 00:30:27,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:27,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2967 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2023-12-16 00:30:27,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:27,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301889539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:27,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:27,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:27,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063366285] [2023-12-16 00:30:27,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:27,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:27,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:27,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:27,820 INFO L87 Difference]: Start difference. First operand 2508 states and 3410 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-12-16 00:30:27,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:27,904 INFO L93 Difference]: Finished difference Result 5149 states and 7009 transitions. [2023-12-16 00:30:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:27,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 515 [2023-12-16 00:30:27,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:27,911 INFO L225 Difference]: With dead ends: 5149 [2023-12-16 00:30:27,911 INFO L226 Difference]: Without dead ends: 2660 [2023-12-16 00:30:27,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:27,915 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 11 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:27,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 289 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:27,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2023-12-16 00:30:27,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2300. [2023-12-16 00:30:27,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 2299 states have (on average 1.3632013919095258) internal successors, (3134), 2299 states have internal predecessors, (3134), 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) [2023-12-16 00:30:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3134 transitions. [2023-12-16 00:30:27,970 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3134 transitions. Word has length 515 [2023-12-16 00:30:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:27,970 INFO L495 AbstractCegarLoop]: Abstraction has 2300 states and 3134 transitions. [2023-12-16 00:30:27,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-12-16 00:30:27,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3134 transitions. [2023-12-16 00:30:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2023-12-16 00:30:27,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:27,975 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:28,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:28,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:28,181 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:28,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash -80348154, now seen corresponding path program 1 times [2023-12-16 00:30:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999574269] [2023-12-16 00:30:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:28,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 00:30:28,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683567120] [2023-12-16 00:30:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:28,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:28,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:28,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 00:30:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:28,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 00:30:28,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-16 00:30:28,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 00:30:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3839 backedges. 2222 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-12-16 00:30:28,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:28,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999574269] [2023-12-16 00:30:28,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 00:30:28,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683567120] [2023-12-16 00:30:28,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683567120] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 00:30:28,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 00:30:28,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 00:30:28,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396898536] [2023-12-16 00:30:28,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 00:30:28,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 00:30:28,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:28,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 00:30:28,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 00:30:28,470 INFO L87 Difference]: Start difference. First operand 2300 states and 3134 transitions. Second operand has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 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) [2023-12-16 00:30:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:28,784 INFO L93 Difference]: Finished difference Result 6515 states and 8763 transitions. [2023-12-16 00:30:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 00:30:28,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 579 [2023-12-16 00:30:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:28,807 INFO L225 Difference]: With dead ends: 6515 [2023-12-16 00:30:28,807 INFO L226 Difference]: Without dead ends: 4077 [2023-12-16 00:30:28,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1162 GetRequests, 1155 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-16 00:30:28,811 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 343 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:28,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 982 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 00:30:28,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2023-12-16 00:30:28,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 2587. [2023-12-16 00:30:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 2586 states have (on average 1.3762567672080432) internal successors, (3559), 2586 states have internal predecessors, (3559), 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) [2023-12-16 00:30:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3559 transitions. [2023-12-16 00:30:28,887 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3559 transitions. Word has length 579 [2023-12-16 00:30:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:28,887 INFO L495 AbstractCegarLoop]: Abstraction has 2587 states and 3559 transitions. [2023-12-16 00:30:28,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 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) [2023-12-16 00:30:28,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3559 transitions. [2023-12-16 00:30:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2023-12-16 00:30:28,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 00:30:28,892 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 22, 22, 22, 20, 20, 18, 18, 16, 16, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:28,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:29,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-16 00:30:29,098 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 00:30:29,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 00:30:29,099 INFO L85 PathProgramCache]: Analyzing trace with hash 912457370, now seen corresponding path program 1 times [2023-12-16 00:30:29,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 00:30:29,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731596162] [2023-12-16 00:30:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:29,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 00:30:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:29,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 00:30:29,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731596162] [2023-12-16 00:30:29,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 00:30:29,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975711462] [2023-12-16 00:30:29,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 00:30:29,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 00:30:29,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 00:30:29,162 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 00:30:29,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-16 00:30:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 00:30:29,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 00:30:29,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 00:30:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 5691 backedges. 3085 proven. 0 refuted. 0 times theorem prover too weak. 2606 trivial. 0 not checked. [2023-12-16 00:30:29,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 00:30:29,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975711462] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 00:30:29,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 00:30:29,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 00:30:29,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276301575] [2023-12-16 00:30:29,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 00:30:29,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 00:30:29,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 00:30:29,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 00:30:29,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:29,368 INFO L87 Difference]: Start difference. First operand 2587 states and 3559 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2023-12-16 00:30:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 00:30:29,463 INFO L93 Difference]: Finished difference Result 3274 states and 4489 transitions. [2023-12-16 00:30:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 00:30:29,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 699 [2023-12-16 00:30:29,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 00:30:29,464 INFO L225 Difference]: With dead ends: 3274 [2023-12-16 00:30:29,464 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 00:30:29,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 00:30:29,467 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 136 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 00:30:29,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 163 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 00:30:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 00:30:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 00:30:29,468 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) [2023-12-16 00:30:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 00:30:29,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 699 [2023-12-16 00:30:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 00:30:29,468 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 00:30:29,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2023-12-16 00:30:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 00:30:29,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 00:30:29,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 00:30:29,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-16 00:30:29,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-16 00:30:29,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 00:30:29,854 INFO L899 garLoopResultBuilder]: For program point L531(lines 531 536) no Hoare annotation was computed. [2023-12-16 00:30:29,854 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 405) no Hoare annotation was computed. [2023-12-16 00:30:29,854 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 385) no Hoare annotation was computed. [2023-12-16 00:30:29,854 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8593#1(lines 184 611) no Hoare annotation was computed. [2023-12-16 00:30:29,855 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 569) no Hoare annotation was computed. [2023-12-16 00:30:29,855 INFO L899 garLoopResultBuilder]: For program point L499(lines 499 503) no Hoare annotation was computed. [2023-12-16 00:30:29,855 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2023-12-16 00:30:29,855 INFO L899 garLoopResultBuilder]: For program point L367-2(lines 367 371) no Hoare annotation was computed. [2023-12-16 00:30:29,855 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8529#1(lines 157 620) no Hoare annotation was computed. [2023-12-16 00:30:29,855 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 605) no Hoare annotation was computed. [2023-12-16 00:30:29,856 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 616) no Hoare annotation was computed. [2023-12-16 00:30:29,856 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 627) no Hoare annotation was computed. [2023-12-16 00:30:29,856 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 471) no Hoare annotation was computed. [2023-12-16 00:30:29,856 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8497#1(lines 145 624) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L335-1(lines 335 344) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L667(lines 74 684) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 604) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 615) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 626) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 256) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 219 597) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 664) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 382) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L637(lines 637 661) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 575) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 542) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L571-2(lines 571 575) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 483) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L538-2(lines 219 597) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 443) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L373(lines 356 391) no Hoare annotation was computed. [2023-12-16 00:30:29,857 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 246) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 603) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 614) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 625) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 109 666) the Hoare annotation is: (let ((.cse0 (= 3 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|))) (or (and (= 8464 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 0)) (= 2 |ULTIMATE.start_ssl3_accept_~blastFlag~0#1|) (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 4) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (and .cse0 (not (= 0 |ULTIMATE.start_ssl3_accept_~s__hit~0#1|))) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) (= 8448 |ULTIMATE.start_ssl3_accept_~s__state~0#1|)) (and (= 8496 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 1)))) [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L671(lines 671 675) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 647) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L671-2(lines 671 675) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L638-2(lines 637 659) no Hoare annotation was computed. [2023-12-16 00:30:29,858 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 379) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 644) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 415) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8481#1(lines 127 630) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 602) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 613) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 624) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 635) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L476(lines 476 480) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L511(lines 511 515) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L511-2(lines 219 597) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 252) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L214(lines 214 601) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 612) no Hoare annotation was computed. [2023-12-16 00:30:29,859 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 623) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 634) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 91) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L282(lines 282 286) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8657#1(lines 202 605) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 320) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L316-2(lines 219 597) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 611) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 622) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 633) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 591) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 591) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 449 461) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L86-2(lines 83 91) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L417(lines 408 428) no Hoare annotation was computed. [2023-12-16 00:30:29,860 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 355) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L351-2(lines 219 597) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L682(lines 74 684) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L649(lines 649 655) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 555) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 610) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 621) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 632) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 588) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8545#1(lines 163 618) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 457) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point $Ultimate##173(lines 449 461) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 424) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point L222(lines 115 634) no Hoare annotation was computed. [2023-12-16 00:30:29,861 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8577#1(lines 178 613) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 609) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 620) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 631) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8641#1(lines 196 607) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 525) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_ERROR#1(lines 74 684) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point $Ultimate##127(lines 335 344) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 101) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 74 684) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 608) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 619) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 630) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 98) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8673#1(lines 208 603) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 390) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 330) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L326-2(lines 326 330) no Hoare annotation was computed. [2023-12-16 00:30:29,862 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L227-2(lines 227 231) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8609#1(lines 190 609) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8466#1(lines 136 627) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point $Ultimate##163(lines 408 428) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 607) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 618) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 629) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 564) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 389) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L362-1(lines 362 389) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point $Ultimate##219(lines 636 664) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 678) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 386) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 276) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point ssl3_accept_switch_1_8561#1(lines 169 616) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 434) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 270) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 237) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 606) no Hoare annotation was computed. [2023-12-16 00:30:29,863 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 617) no Hoare annotation was computed. [2023-12-16 00:30:29,864 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 628) no Hoare annotation was computed. [2023-12-16 00:30:29,864 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 429) no Hoare annotation was computed. [2023-12-16 00:30:29,864 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2023-12-16 00:30:29,864 INFO L899 garLoopResultBuilder]: For program point L299-2(lines 219 597) no Hoare annotation was computed. [2023-12-16 00:30:29,866 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 00:30:29,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 00:30:29,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:30:29 BoogieIcfgContainer [2023-12-16 00:30:29,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 00:30:29,884 INFO L158 Benchmark]: Toolchain (without parser) took 11724.55ms. Allocated memory was 158.3MB in the beginning and 281.0MB in the end (delta: 122.7MB). Free memory was 124.2MB in the beginning and 227.3MB in the end (delta: -103.2MB). Peak memory consumption was 160.4MB. Max. memory is 8.0GB. [2023-12-16 00:30:29,884 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 158.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 00:30:29,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.21ms. Allocated memory is still 158.3MB. Free memory was 124.2MB in the beginning and 107.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 00:30:29,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.11ms. Allocated memory is still 158.3MB. Free memory was 107.8MB in the beginning and 104.8MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 00:30:29,884 INFO L158 Benchmark]: Boogie Preprocessor took 57.93ms. Allocated memory is still 158.3MB. Free memory was 104.8MB in the beginning and 101.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 00:30:29,885 INFO L158 Benchmark]: RCFGBuilder took 688.80ms. Allocated memory was 158.3MB in the beginning and 190.8MB in the end (delta: 32.5MB). Free memory was 101.7MB in the beginning and 161.3MB in the end (delta: -59.6MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-16 00:30:29,885 INFO L158 Benchmark]: TraceAbstraction took 10649.70ms. Allocated memory was 190.8MB in the beginning and 281.0MB in the end (delta: 90.2MB). Free memory was 160.2MB in the beginning and 227.3MB in the end (delta: -67.1MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. [2023-12-16 00:30:29,888 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 158.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 283.21ms. Allocated memory is still 158.3MB. Free memory was 124.2MB in the beginning and 107.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.11ms. Allocated memory is still 158.3MB. Free memory was 107.8MB in the beginning and 104.8MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.93ms. Allocated memory is still 158.3MB. Free memory was 104.8MB in the beginning and 101.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 688.80ms. Allocated memory was 158.3MB in the beginning and 190.8MB in the end (delta: 32.5MB). Free memory was 101.7MB in the beginning and 161.3MB in the end (delta: -59.6MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 10649.70ms. Allocated memory was 190.8MB in the beginning and 281.0MB in the end (delta: 90.2MB). Free memory was 160.2MB in the beginning and 227.3MB in the end (delta: -67.1MB). Peak memory consumption was 162.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 678]: 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 1 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 22, TraceHistogramMax: 25, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2179 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2179 mSDsluCounter, 7523 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3072 mSDsCounter, 625 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2867 IncrementalHoareTripleChecker+Invalid, 3492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 625 mSolverCounterUnsat, 4451 mSDtfsCounter, 2867 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5548 GetRequests, 5513 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2587occurred in iteration=21, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 3362 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 45 NumberOfFragments, 46 HoareAnnotationTreeSize, 1 FormulaSimplifications, 1510 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 1 FormulaSimplificationsInter, 143 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 8062 NumberOfCodeBlocks, 8062 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 6313 ConstructedInterpolants, 0 QuantifiedInterpolants, 8149 SizeOfPredicates, 2 NumberOfNonLiveVariables, 7471 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 26700/26800 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: 109]: Loop Invariant Derived loop invariant: ((((((((8464 == s__state) && (blastFlag == 0)) || (2 == blastFlag)) || (s__state < 4)) || ((3 == blastFlag) && (s__state == 8672))) || ((3 == blastFlag) && !((0 == s__hit)))) || (((3 == blastFlag) && (s__s3__tmp__next_state___0 <= 3)) && (8448 == s__state))) || ((8496 == s__state) && (blastFlag == 1))) RESULT: Ultimate proved your program to be correct! [2023-12-16 00:30:29,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...