/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:42:21,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:42:21,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 05:42:21,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:42:21,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:42:22,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:42:22,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:42:22,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:42:22,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:42:22,021 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:42:22,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:42:22,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:42:22,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:42:22,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:42:22,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:42:22,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:42:22,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:42:22,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:42:22,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:42:22,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:42:22,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:42:22,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:42:22,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:42:22,027 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:42:22,027 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:42:22,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:42:22,027 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:42:22,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:42:22,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:42:22,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:42:22,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:42:22,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:42:22,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:42:22,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:42:22,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:42:22,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:42:22,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:42:22,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:42:22,030 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:42:22,031 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:42:22,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:42:22,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:42:22,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:42:22,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:42:22,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:22,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:42:22,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:42:22,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:42:22,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:42:22,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:42:22,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-03 05:42:23,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:42:24,142 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:42:24,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-03 05:42:24,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00b9342c/50d0170e4f2b4dbe81a71edd136ae9a7/FLAGbcbe7c0b0 [2024-11-03 05:42:24,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00b9342c/50d0170e4f2b4dbe81a71edd136ae9a7 [2024-11-03 05:42:24,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:42:24,185 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:42:24,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:42:24,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:42:24,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:42:24,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596149fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24, skipping insertion in model container [2024-11-03 05:42:24,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:42:24,487 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-03 05:42:24,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:42:24,511 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:42:24,557 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-03 05:42:24,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:42:24,577 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:42:24,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24 WrapperNode [2024-11-03 05:42:24,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:42:24,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:42:24,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:42:24,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:42:24,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,623 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 474 [2024-11-03 05:42:24,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:42:24,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:42:24,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:42:24,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:42:24,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,669 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]. [2024-11-03 05:42:24,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:42:24,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:42:24,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:42:24,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:42:24,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (1/1) ... [2024-11-03 05:42:24,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:42:24,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:42:24,730 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) [2024-11-03 05:42:24,736 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 [2024-11-03 05:42:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:42:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:42:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:42:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:42:24,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:42:24,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:42:24,911 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-03 05:42:25,446 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2024-11-03 05:42:25,446 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2024-11-03 05:42:25,506 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-11-03 05:42:25,506 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:42:25,526 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:42:25,527 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 05:42:25,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:25 BoogieIcfgContainer [2024-11-03 05:42:25,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:42:25,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:42:25,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:42:25,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:42:25,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:42:24" (1/3) ... [2024-11-03 05:42:25,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b716589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:25, skipping insertion in model container [2024-11-03 05:42:25,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24" (2/3) ... [2024-11-03 05:42:25,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b716589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:25, skipping insertion in model container [2024-11-03 05:42:25,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:25" (3/3) ... [2024-11-03 05:42:25,537 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2024-11-03 05:42:25,557 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:42:25,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:42:25,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:42:25,625 INFO L333 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, 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;@1410d1e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:42:25,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:42:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 125 states have internal predecessors, (215), 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) [2024-11-03 05:42:25,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-03 05:42:25,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:25,640 INFO L215 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] [2024-11-03 05:42:25,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:25,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:25,647 INFO L85 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2024-11-03 05:42:25,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:25,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91522915] [2024-11-03 05:42:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:25,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:25,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:25,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:25,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 05:42:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:25,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:25,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:25,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:25,869 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:25,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91522915] [2024-11-03 05:42:25,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [91522915] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:25,870 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:25,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:25,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302384986] [2024-11-03 05:42:25,875 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:25,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:25,903 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.7338709677419355) internal successors, (215), 125 states have internal predecessors, (215), 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 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-03 05:42:26,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:26,113 INFO L93 Difference]: Finished difference Result 247 states and 423 transitions. [2024-11-03 05:42:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:26,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2024-11-03 05:42:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:26,125 INFO L225 Difference]: With dead ends: 247 [2024-11-03 05:42:26,126 INFO L226 Difference]: Without dead ends: 113 [2024-11-03 05:42:26,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:26,132 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:26,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 320 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 05:42:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-03 05:42:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-03 05:42:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.5267857142857142) internal successors, (171), 112 states have internal predecessors, (171), 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) [2024-11-03 05:42:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2024-11-03 05:42:26,164 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2024-11-03 05:42:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:26,165 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2024-11-03 05:42:26,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-03 05:42:26,165 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2024-11-03 05:42:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-03 05:42:26,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:26,167 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:42:26,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:26,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:26,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:26,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2024-11-03 05:42:26,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:26,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126611771] [2024-11-03 05:42:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:26,369 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:26,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:26,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:26,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 05:42:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:26,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:26,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:26,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 05:42:26,509 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:26,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126611771] [2024-11-03 05:42:26,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [126611771] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:26,510 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:26,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:26,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118834991] [2024-11-03 05:42:26,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:26,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:26,513 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-03 05:42:26,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:26,660 INFO L93 Difference]: Finished difference Result 230 states and 352 transitions. [2024-11-03 05:42:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:26,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2024-11-03 05:42:26,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:26,664 INFO L225 Difference]: With dead ends: 230 [2024-11-03 05:42:26,664 INFO L226 Difference]: Without dead ends: 128 [2024-11-03 05:42:26,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:26,667 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:26,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 242 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:26,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-03 05:42:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-03 05:42:26,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.5039370078740157) internal successors, (191), 127 states have internal predecessors, (191), 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) [2024-11-03 05:42:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2024-11-03 05:42:26,683 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2024-11-03 05:42:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:26,683 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2024-11-03 05:42:26,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-11-03 05:42:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2024-11-03 05:42:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-03 05:42:26,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:26,685 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:42:26,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 05:42:26,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:26,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:26,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2024-11-03 05:42:26,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:26,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881573139] [2024-11-03 05:42:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:26,888 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:26,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:26,893 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:26,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 05:42:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:26,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:26,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:42:27,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:42:27,116 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881573139] [2024-11-03 05:42:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1881573139] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:27,117 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:27,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:27,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103943899] [2024-11-03 05:42:27,117 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:27,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:27,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:27,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:27,121 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-03 05:42:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:27,145 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2024-11-03 05:42:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:27,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2024-11-03 05:42:27,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:27,148 INFO L225 Difference]: With dead ends: 271 [2024-11-03 05:42:27,148 INFO L226 Difference]: Without dead ends: 154 [2024-11-03 05:42:27,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:27,150 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 21 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:27,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 311 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:27,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-03 05:42:27,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-03 05:42:27,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.4640522875816993) internal successors, (224), 153 states have internal predecessors, (224), 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) [2024-11-03 05:42:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2024-11-03 05:42:27,164 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2024-11-03 05:42:27,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:27,164 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2024-11-03 05:42:27,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-03 05:42:27,165 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2024-11-03 05:42:27,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-03 05:42:27,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:27,169 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:42:27,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:27,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:27,371 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:27,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2024-11-03 05:42:27,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:27,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843259994] [2024-11-03 05:42:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:27,372 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:27,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:27,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:27,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 05:42:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:27,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:27,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:42:27,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:42:27,526 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:27,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843259994] [2024-11-03 05:42:27,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [843259994] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:27,526 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:27,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:27,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559164717] [2024-11-03 05:42:27,527 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:27,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:27,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:27,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:27,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:27,532 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-03 05:42:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:27,661 INFO L93 Difference]: Finished difference Result 288 states and 429 transitions. [2024-11-03 05:42:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:27,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 51 [2024-11-03 05:42:27,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:27,663 INFO L225 Difference]: With dead ends: 288 [2024-11-03 05:42:27,664 INFO L226 Difference]: Without dead ends: 171 [2024-11-03 05:42:27,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:27,665 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 10 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:27,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 255 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-03 05:42:27,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-11-03 05:42:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.4470588235294117) internal successors, (246), 170 states have internal predecessors, (246), 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) [2024-11-03 05:42:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2024-11-03 05:42:27,680 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2024-11-03 05:42:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:27,681 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2024-11-03 05:42:27,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-03 05:42:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2024-11-03 05:42:27,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-03 05:42:27,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:27,683 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-03 05:42:27,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 05:42:27,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:27,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:27,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:27,885 INFO L85 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2024-11-03 05:42:27,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:27,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126479501] [2024-11-03 05:42:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:27,885 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:27,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:27,887 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:27,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-03 05:42:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:27,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-03 05:42:27,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-03 05:42:28,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 05:42:28,452 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126479501] [2024-11-03 05:42:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2126479501] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:28,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:28,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:28,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309546619] [2024-11-03 05:42:28,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:28,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:28,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:28,455 INFO L87 Difference]: Start difference. First operand 171 states and 246 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) [2024-11-03 05:42:28,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:28,494 INFO L93 Difference]: Finished difference Result 304 states and 442 transitions. [2024-11-03 05:42:28,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:28,495 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 68 [2024-11-03 05:42:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:28,497 INFO L225 Difference]: With dead ends: 304 [2024-11-03 05:42:28,497 INFO L226 Difference]: Without dead ends: 302 [2024-11-03 05:42:28,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:28,501 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 137 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:28,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 300 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-03 05:42:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-11-03 05:42:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.4617940199335548) internal successors, (440), 301 states have internal predecessors, (440), 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) [2024-11-03 05:42:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 440 transitions. [2024-11-03 05:42:28,527 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 440 transitions. Word has length 68 [2024-11-03 05:42:28,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:28,527 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 440 transitions. [2024-11-03 05:42:28,528 INFO L472 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) [2024-11-03 05:42:28,528 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 440 transitions. [2024-11-03 05:42:28,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-03 05:42:28,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:28,530 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-03 05:42:28,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:28,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:28,733 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:28,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:28,733 INFO L85 PathProgramCache]: Analyzing trace with hash 562572643, now seen corresponding path program 1 times [2024-11-03 05:42:28,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:28,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415976836] [2024-11-03 05:42:28,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:28,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:28,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:28,735 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:28,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-03 05:42:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:28,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:28,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:42:28,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:42:28,878 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:28,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415976836] [2024-11-03 05:42:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [415976836] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:28,879 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:28,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:28,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647310453] [2024-11-03 05:42:28,879 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:28,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:28,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:28,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:28,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:28,881 INFO L87 Difference]: Start difference. First operand 302 states and 440 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-03 05:42:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:28,904 INFO L93 Difference]: Finished difference Result 588 states and 859 transitions. [2024-11-03 05:42:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:28,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 69 [2024-11-03 05:42:28,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:28,906 INFO L225 Difference]: With dead ends: 588 [2024-11-03 05:42:28,906 INFO L226 Difference]: Without dead ends: 323 [2024-11-03 05:42:28,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:28,908 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 11 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:28,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 341 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-03 05:42:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-03 05:42:28,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.450310559006211) internal successors, (467), 322 states have internal predecessors, (467), 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) [2024-11-03 05:42:28,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 467 transitions. [2024-11-03 05:42:28,941 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 467 transitions. Word has length 69 [2024-11-03 05:42:28,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:28,941 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 467 transitions. [2024-11-03 05:42:28,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-03 05:42:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 467 transitions. [2024-11-03 05:42:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-03 05:42:28,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:28,943 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-03 05:42:28,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:29,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:29,144 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash -240225436, now seen corresponding path program 1 times [2024-11-03 05:42:29,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:29,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462619741] [2024-11-03 05:42:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:29,146 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:29,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:29,149 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:29,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-03 05:42:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:29,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-03 05:42:29,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 40 proven. 35 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-03 05:42:29,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-03 05:42:29,575 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:29,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462619741] [2024-11-03 05:42:29,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1462619741] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:29,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:29,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:29,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447926242] [2024-11-03 05:42:29,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:29,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:29,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:29,577 INFO L87 Difference]: Start difference. First operand 323 states and 467 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-03 05:42:29,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:29,615 INFO L93 Difference]: Finished difference Result 738 states and 1076 transitions. [2024-11-03 05:42:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:29,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 86 [2024-11-03 05:42:29,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:29,618 INFO L225 Difference]: With dead ends: 738 [2024-11-03 05:42:29,618 INFO L226 Difference]: Without dead ends: 452 [2024-11-03 05:42:29,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:29,620 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 142 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:29,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 299 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-03 05:42:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-03 05:42:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.4545454545454546) internal successors, (656), 451 states have internal predecessors, (656), 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) [2024-11-03 05:42:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 656 transitions. [2024-11-03 05:42:29,640 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 656 transitions. Word has length 86 [2024-11-03 05:42:29,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:29,642 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 656 transitions. [2024-11-03 05:42:29,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-03 05:42:29,642 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 656 transitions. [2024-11-03 05:42:29,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-03 05:42:29,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:29,644 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-03 05:42:29,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-03 05:42:29,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:29,847 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:29,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash -885704100, now seen corresponding path program 1 times [2024-11-03 05:42:29,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:29,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666830805] [2024-11-03 05:42:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:29,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:29,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:29,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:29,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-03 05:42:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:29,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-03 05:42:29,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:30,178 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 83 proven. 33 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-03 05:42:30,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:30,230 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-03 05:42:30,231 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:30,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666830805] [2024-11-03 05:42:30,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [666830805] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:30,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:30,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:30,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87331592] [2024-11-03 05:42:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:30,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:30,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:30,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:30,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:30,233 INFO L87 Difference]: Start difference. First operand 452 states and 656 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-03 05:42:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:30,278 INFO L93 Difference]: Finished difference Result 997 states and 1455 transitions. [2024-11-03 05:42:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:30,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 106 [2024-11-03 05:42:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:30,281 INFO L225 Difference]: With dead ends: 997 [2024-11-03 05:42:30,282 INFO L226 Difference]: Without dead ends: 582 [2024-11-03 05:42:30,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:30,283 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 139 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:30,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 299 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:30,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-03 05:42:30,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2024-11-03 05:42:30,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 581 states have (on average 1.4543889845094664) internal successors, (845), 581 states have internal predecessors, (845), 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) [2024-11-03 05:42:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 845 transitions. [2024-11-03 05:42:30,302 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 845 transitions. Word has length 106 [2024-11-03 05:42:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:30,302 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 845 transitions. [2024-11-03 05:42:30,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-11-03 05:42:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 845 transitions. [2024-11-03 05:42:30,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-03 05:42:30,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:30,307 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1] [2024-11-03 05:42:30,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-03 05:42:30,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:30,508 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:30,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:30,508 INFO L85 PathProgramCache]: Analyzing trace with hash -833396868, now seen corresponding path program 1 times [2024-11-03 05:42:30,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:30,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921867537] [2024-11-03 05:42:30,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:30,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:30,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:30,510 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:30,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-03 05:42:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:30,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:30,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 88 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 05:42:30,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-03 05:42:30,862 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921867537] [2024-11-03 05:42:30,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [921867537] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:30,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:30,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125056167] [2024-11-03 05:42:30,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:30,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:30,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:30,864 INFO L87 Difference]: Start difference. First operand 582 states and 845 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-03 05:42:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:30,996 INFO L93 Difference]: Finished difference Result 1195 states and 1761 transitions. [2024-11-03 05:42:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:31,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 124 [2024-11-03 05:42:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:31,013 INFO L225 Difference]: With dead ends: 1195 [2024-11-03 05:42:31,013 INFO L226 Difference]: Without dead ends: 650 [2024-11-03 05:42:31,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:31,014 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 54 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:31,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 169 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:31,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-03 05:42:31,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2024-11-03 05:42:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.4807395993836672) internal successors, (961), 649 states have internal predecessors, (961), 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) [2024-11-03 05:42:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 961 transitions. [2024-11-03 05:42:31,032 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 961 transitions. Word has length 124 [2024-11-03 05:42:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:31,032 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 961 transitions. [2024-11-03 05:42:31,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-03 05:42:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 961 transitions. [2024-11-03 05:42:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-03 05:42:31,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:31,035 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 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] [2024-11-03 05:42:31,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-03 05:42:31,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,237 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:31,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:31,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1896690995, now seen corresponding path program 1 times [2024-11-03 05:42:31,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686310251] [2024-11-03 05:42:31,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:31,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:31,239 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:31,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-03 05:42:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:31,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:31,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:31,527 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 91 proven. 95 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-03 05:42:31,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-03 05:42:31,561 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:31,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686310251] [2024-11-03 05:42:31,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1686310251] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:31,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:31,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:31,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535119563] [2024-11-03 05:42:31,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:31,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:31,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:31,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:31,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:31,563 INFO L87 Difference]: Start difference. First operand 650 states and 961 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-11-03 05:42:31,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:31,687 INFO L93 Difference]: Finished difference Result 1267 states and 1881 transitions. [2024-11-03 05:42:31,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 125 [2024-11-03 05:42:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:31,691 INFO L225 Difference]: With dead ends: 1267 [2024-11-03 05:42:31,691 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:31,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:31,693 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 55 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:31,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 166 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:31,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:31,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.4777947932618682) internal successors, (965), 653 states have internal predecessors, (965), 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) [2024-11-03 05:42:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 965 transitions. [2024-11-03 05:42:31,709 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 965 transitions. Word has length 125 [2024-11-03 05:42:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:31,709 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 965 transitions. [2024-11-03 05:42:31,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-11-03 05:42:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 965 transitions. [2024-11-03 05:42:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-03 05:42:31,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:31,711 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 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] [2024-11-03 05:42:31,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:31,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,913 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:31,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:31,914 INFO L85 PathProgramCache]: Analyzing trace with hash -634005565, now seen corresponding path program 1 times [2024-11-03 05:42:31,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:31,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690345711] [2024-11-03 05:42:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:31,915 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:31,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:31,918 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:31,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-03 05:42:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:32,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:32,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 145 proven. 93 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-03 05:42:32,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-03 05:42:32,230 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690345711] [2024-11-03 05:42:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1690345711] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:32,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:32,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:32,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789234675] [2024-11-03 05:42:32,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:32,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:32,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:32,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:32,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:32,232 INFO L87 Difference]: Start difference. First operand 654 states and 965 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-03 05:42:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:32,354 INFO L93 Difference]: Finished difference Result 1271 states and 1881 transitions. [2024-11-03 05:42:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 138 [2024-11-03 05:42:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:32,358 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:32,358 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:32,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:32,360 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 59 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:32,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 180 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:32,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.4716692189892802) internal successors, (961), 653 states have internal predecessors, (961), 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) [2024-11-03 05:42:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 961 transitions. [2024-11-03 05:42:32,376 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 961 transitions. Word has length 138 [2024-11-03 05:42:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:32,377 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 961 transitions. [2024-11-03 05:42:32,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-03 05:42:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 961 transitions. [2024-11-03 05:42:32,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-03 05:42:32,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:32,379 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 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] [2024-11-03 05:42:32,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:32,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:32,581 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:32,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:32,582 INFO L85 PathProgramCache]: Analyzing trace with hash 489254388, now seen corresponding path program 1 times [2024-11-03 05:42:32,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:32,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690877237] [2024-11-03 05:42:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:32,582 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:32,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:32,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-03 05:42:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:32,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:32,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 149 proven. 94 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-03 05:42:32,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-03 05:42:32,921 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:32,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690877237] [2024-11-03 05:42:32,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1690877237] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:32,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:32,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:32,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764801313] [2024-11-03 05:42:32,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:32,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:32,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:32,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:32,923 INFO L87 Difference]: Start difference. First operand 654 states and 961 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) [2024-11-03 05:42:33,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:33,051 INFO L93 Difference]: Finished difference Result 1271 states and 1873 transitions. [2024-11-03 05:42:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:33,051 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 139 [2024-11-03 05:42:33,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:33,054 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:33,054 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:33,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:33,056 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 58 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:33,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 163 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:33,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:33,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.4655436447166923) internal successors, (957), 653 states have internal predecessors, (957), 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) [2024-11-03 05:42:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 957 transitions. [2024-11-03 05:42:33,072 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 957 transitions. Word has length 139 [2024-11-03 05:42:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:33,072 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 957 transitions. [2024-11-03 05:42:33,073 INFO L472 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) [2024-11-03 05:42:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 957 transitions. [2024-11-03 05:42:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-03 05:42:33,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:33,075 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 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] [2024-11-03 05:42:33,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:33,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,277 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:33,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:33,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1117892099, now seen corresponding path program 2 times [2024-11-03 05:42:33,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:33,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271010917] [2024-11-03 05:42:33,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:33,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:33,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:33,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-03 05:42:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:33,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:33,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 180 proven. 83 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 05:42:33,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:33,576 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 05:42:33,576 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:33,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271010917] [2024-11-03 05:42:33,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1271010917] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:33,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:33,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:33,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845740851] [2024-11-03 05:42:33,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:33,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:33,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:33,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:33,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:33,578 INFO L87 Difference]: Start difference. First operand 654 states and 957 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-03 05:42:33,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:33,689 INFO L93 Difference]: Finished difference Result 1271 states and 1865 transitions. [2024-11-03 05:42:33,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:33,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 150 [2024-11-03 05:42:33,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:33,693 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:33,693 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:33,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:33,696 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 53 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:33,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 172 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:33,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:33,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.4594180704441042) internal successors, (953), 653 states have internal predecessors, (953), 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) [2024-11-03 05:42:33,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 953 transitions. [2024-11-03 05:42:33,713 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 953 transitions. Word has length 150 [2024-11-03 05:42:33,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:33,714 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 953 transitions. [2024-11-03 05:42:33,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-03 05:42:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 953 transitions. [2024-11-03 05:42:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-03 05:42:33,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:33,716 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 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] [2024-11-03 05:42:33,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:33,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,918 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:33,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash -181546075, now seen corresponding path program 1 times [2024-11-03 05:42:33,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:33,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830056218] [2024-11-03 05:42:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:33,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:33,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:33,924 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:33,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-03 05:42:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:34,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:34,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 184 proven. 85 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 05:42:34,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 05:42:34,238 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:34,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830056218] [2024-11-03 05:42:34,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1830056218] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:34,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:34,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:34,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225806300] [2024-11-03 05:42:34,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:34,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:34,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:34,239 INFO L87 Difference]: Start difference. First operand 654 states and 953 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-03 05:42:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:34,353 INFO L93 Difference]: Finished difference Result 1271 states and 1857 transitions. [2024-11-03 05:42:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:34,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 150 [2024-11-03 05:42:34,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:34,356 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:34,356 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:34,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:34,358 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 63 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:34,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 159 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:34,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.4532924961715161) internal successors, (949), 653 states have internal predecessors, (949), 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) [2024-11-03 05:42:34,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 949 transitions. [2024-11-03 05:42:34,373 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 949 transitions. Word has length 150 [2024-11-03 05:42:34,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:34,373 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 949 transitions. [2024-11-03 05:42:34,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-03 05:42:34,374 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 949 transitions. [2024-11-03 05:42:34,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-03 05:42:34,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:34,376 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 7, 7, 7, 5, 5, 3, 3, 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] [2024-11-03 05:42:34,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:34,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:34,578 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:34,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash -94213738, now seen corresponding path program 1 times [2024-11-03 05:42:34,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:34,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525409825] [2024-11-03 05:42:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:34,578 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:34,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:34,579 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:34,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-03 05:42:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:34,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:34,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 189 proven. 87 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 05:42:34,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 05:42:34,933 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:34,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525409825] [2024-11-03 05:42:34,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [525409825] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:34,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:34,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:34,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541645276] [2024-11-03 05:42:34,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:34,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:34,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:34,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:34,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:34,936 INFO L87 Difference]: Start difference. First operand 654 states and 949 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-03 05:42:35,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:35,061 INFO L93 Difference]: Finished difference Result 1271 states and 1849 transitions. [2024-11-03 05:42:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:35,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 151 [2024-11-03 05:42:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:35,065 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:35,065 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:35,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:35,068 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 62 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:35,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 160 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:35,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:35,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.447166921898928) internal successors, (945), 653 states have internal predecessors, (945), 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) [2024-11-03 05:42:35,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 945 transitions. [2024-11-03 05:42:35,092 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 945 transitions. Word has length 151 [2024-11-03 05:42:35,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:35,092 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 945 transitions. [2024-11-03 05:42:35,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-11-03 05:42:35,093 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 945 transitions. [2024-11-03 05:42:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-03 05:42:35,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:35,095 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 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] [2024-11-03 05:42:35,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:35,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:35,297 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:35,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1177318752, now seen corresponding path program 1 times [2024-11-03 05:42:35,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:35,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847410233] [2024-11-03 05:42:35,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:35,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:35,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:35,301 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:35,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-03 05:42:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:35,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:35,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:35,581 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 194 proven. 89 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 05:42:35,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 05:42:35,606 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847410233] [2024-11-03 05:42:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1847410233] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:35,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:35,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025140091] [2024-11-03 05:42:35,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:35,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:35,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:35,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:35,608 INFO L87 Difference]: Start difference. First operand 654 states and 945 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-03 05:42:35,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:35,719 INFO L93 Difference]: Finished difference Result 1271 states and 1841 transitions. [2024-11-03 05:42:35,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:35,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 152 [2024-11-03 05:42:35,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:35,723 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:35,723 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:35,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:35,725 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 61 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:35,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 161 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:35,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:35,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.44104134762634) internal successors, (941), 653 states have internal predecessors, (941), 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) [2024-11-03 05:42:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 941 transitions. [2024-11-03 05:42:35,742 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 941 transitions. Word has length 152 [2024-11-03 05:42:35,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:35,742 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 941 transitions. [2024-11-03 05:42:35,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-03 05:42:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 941 transitions. [2024-11-03 05:42:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-03 05:42:35,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:35,744 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 5, 5, 3, 3, 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] [2024-11-03 05:42:35,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-03 05:42:35,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:35,947 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:35,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash 110724017, now seen corresponding path program 1 times [2024-11-03 05:42:35,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:35,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354867390] [2024-11-03 05:42:35,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:35,950 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:35,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:35,953 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:35,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-03 05:42:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:36,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 05:42:36,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 199 proven. 91 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-03 05:42:36,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 05:42:36,238 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:36,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354867390] [2024-11-03 05:42:36,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1354867390] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:36,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:36,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-03 05:42:36,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077043961] [2024-11-03 05:42:36,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:36,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:36,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:36,239 INFO L87 Difference]: Start difference. First operand 654 states and 941 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-03 05:42:36,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:36,354 INFO L93 Difference]: Finished difference Result 1271 states and 1833 transitions. [2024-11-03 05:42:36,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:36,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 [2024-11-03 05:42:36,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:36,358 INFO L225 Difference]: With dead ends: 1271 [2024-11-03 05:42:36,358 INFO L226 Difference]: Without dead ends: 654 [2024-11-03 05:42:36,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-03 05:42:36,360 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 60 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:36,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 162 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-03 05:42:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2024-11-03 05:42:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 1.4349157733537519) internal successors, (937), 653 states have internal predecessors, (937), 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) [2024-11-03 05:42:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 937 transitions. [2024-11-03 05:42:36,378 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 937 transitions. Word has length 153 [2024-11-03 05:42:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:36,378 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 937 transitions. [2024-11-03 05:42:36,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-03 05:42:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 937 transitions. [2024-11-03 05:42:36,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-03 05:42:36,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:36,380 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:36,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:36,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:36,583 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:36,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash -87805400, now seen corresponding path program 1 times [2024-11-03 05:42:36,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:36,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519127456] [2024-11-03 05:42:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:36,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:36,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:36,587 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:36,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-03 05:42:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:36,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:36,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-03 05:42:36,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:36,758 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-03 05:42:36,758 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:36,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519127456] [2024-11-03 05:42:36,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1519127456] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:36,759 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:36,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:36,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863909915] [2024-11-03 05:42:36,761 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:36,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:36,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:36,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:36,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:36,763 INFO L87 Difference]: Start difference. First operand 654 states and 937 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-03 05:42:36,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:36,870 INFO L93 Difference]: Finished difference Result 1340 states and 1924 transitions. [2024-11-03 05:42:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:36,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 162 [2024-11-03 05:42:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:36,873 INFO L225 Difference]: With dead ends: 1340 [2024-11-03 05:42:36,874 INFO L226 Difference]: Without dead ends: 723 [2024-11-03 05:42:36,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:36,875 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 9 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:36,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 259 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:36,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-03 05:42:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2024-11-03 05:42:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.4141274238227146) internal successors, (1021), 722 states have internal predecessors, (1021), 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) [2024-11-03 05:42:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1021 transitions. [2024-11-03 05:42:36,895 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1021 transitions. Word has length 162 [2024-11-03 05:42:36,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:36,895 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1021 transitions. [2024-11-03 05:42:36,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-03 05:42:36,895 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1021 transitions. [2024-11-03 05:42:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-03 05:42:36,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:36,898 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:36,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:37,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,100 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:37,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1943898124, now seen corresponding path program 1 times [2024-11-03 05:42:37,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:37,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728019971] [2024-11-03 05:42:37,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:37,101 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:37,104 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:37,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-03 05:42:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:37,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:37,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-03 05:42:37,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-03 05:42:37,261 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:37,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728019971] [2024-11-03 05:42:37,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [728019971] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:37,261 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:37,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:37,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133346195] [2024-11-03 05:42:37,261 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:37,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:37,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:37,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:37,263 INFO L87 Difference]: Start difference. First operand 723 states and 1021 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-11-03 05:42:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:37,369 INFO L93 Difference]: Finished difference Result 1484 states and 2104 transitions. [2024-11-03 05:42:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:37,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 183 [2024-11-03 05:42:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:37,373 INFO L225 Difference]: With dead ends: 1484 [2024-11-03 05:42:37,373 INFO L226 Difference]: Without dead ends: 798 [2024-11-03 05:42:37,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:37,375 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:37,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 260 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-03 05:42:37,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 798. [2024-11-03 05:42:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.3939774153074027) internal successors, (1111), 797 states have internal predecessors, (1111), 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) [2024-11-03 05:42:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1111 transitions. [2024-11-03 05:42:37,396 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1111 transitions. Word has length 183 [2024-11-03 05:42:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:37,396 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1111 transitions. [2024-11-03 05:42:37,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2024-11-03 05:42:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1111 transitions. [2024-11-03 05:42:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-03 05:42:37,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:37,400 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:37,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-03 05:42:37,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,601 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:37,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:37,601 INFO L85 PathProgramCache]: Analyzing trace with hash 782948705, now seen corresponding path program 1 times [2024-11-03 05:42:37,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:37,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951545355] [2024-11-03 05:42:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:37,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:37,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:37,603 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:37,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-03 05:42:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:37,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:37,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-03 05:42:37,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-03 05:42:37,767 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:37,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951545355] [2024-11-03 05:42:37,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1951545355] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:37,768 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:37,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:37,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521280832] [2024-11-03 05:42:37,768 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:37,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:37,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:37,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:37,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:37,769 INFO L87 Difference]: Start difference. First operand 798 states and 1111 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-11-03 05:42:37,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:37,874 INFO L93 Difference]: Finished difference Result 1671 states and 2341 transitions. [2024-11-03 05:42:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:37,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 207 [2024-11-03 05:42:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:37,877 INFO L225 Difference]: With dead ends: 1671 [2024-11-03 05:42:37,877 INFO L226 Difference]: Without dead ends: 910 [2024-11-03 05:42:37,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:37,879 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:37,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 260 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-11-03 05:42:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2024-11-03 05:42:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.3674367436743675) internal successors, (1243), 909 states have internal predecessors, (1243), 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) [2024-11-03 05:42:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1243 transitions. [2024-11-03 05:42:37,905 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1243 transitions. Word has length 207 [2024-11-03 05:42:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:37,905 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1243 transitions. [2024-11-03 05:42:37,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-11-03 05:42:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1243 transitions. [2024-11-03 05:42:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-03 05:42:37,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:37,908 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:37,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-03 05:42:38,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,111 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:38,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:38,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1023188451, now seen corresponding path program 1 times [2024-11-03 05:42:38,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:38,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700598756] [2024-11-03 05:42:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:38,112 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:38,115 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:38,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-03 05:42:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:38,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:38,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:38,265 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-03 05:42:38,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-03 05:42:38,295 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:38,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700598756] [2024-11-03 05:42:38,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [700598756] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:38,295 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:38,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346082296] [2024-11-03 05:42:38,296 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:38,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:38,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:38,297 INFO L87 Difference]: Start difference. First operand 910 states and 1243 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-11-03 05:42:38,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:38,408 INFO L93 Difference]: Finished difference Result 1907 states and 2633 transitions. [2024-11-03 05:42:38,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:38,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 207 [2024-11-03 05:42:38,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:38,411 INFO L225 Difference]: With dead ends: 1907 [2024-11-03 05:42:38,411 INFO L226 Difference]: Without dead ends: 1034 [2024-11-03 05:42:38,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:38,413 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:38,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 261 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-11-03 05:42:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2024-11-03 05:42:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.3426911907066796) internal successors, (1387), 1033 states have internal predecessors, (1387), 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) [2024-11-03 05:42:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1387 transitions. [2024-11-03 05:42:38,455 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1387 transitions. Word has length 207 [2024-11-03 05:42:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:38,455 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1387 transitions. [2024-11-03 05:42:38,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2024-11-03 05:42:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1387 transitions. [2024-11-03 05:42:38,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-03 05:42:38,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:38,459 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:38,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-03 05:42:38,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,660 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:38,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 498671361, now seen corresponding path program 1 times [2024-11-03 05:42:38,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:38,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733672174] [2024-11-03 05:42:38,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:38,661 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:38,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:38,662 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:38,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-03 05:42:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:38,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:38,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-03 05:42:38,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:38,845 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-03 05:42:38,845 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:38,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733672174] [2024-11-03 05:42:38,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1733672174] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:38,846 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:38,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:38,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495217961] [2024-11-03 05:42:38,846 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:38,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:38,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:38,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:38,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:38,848 INFO L87 Difference]: Start difference. First operand 1034 states and 1387 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-03 05:42:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:38,977 INFO L93 Difference]: Finished difference Result 2167 states and 2941 transitions. [2024-11-03 05:42:38,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:38,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 237 [2024-11-03 05:42:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:38,982 INFO L225 Difference]: With dead ends: 2167 [2024-11-03 05:42:38,982 INFO L226 Difference]: Without dead ends: 1170 [2024-11-03 05:42:38,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:38,983 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 260 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 [2024-11-03 05:42:38,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 260 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:38,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2024-11-03 05:42:39,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1170. [2024-11-03 05:42:39,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 1169 states have (on average 1.3199315654405475) internal successors, (1543), 1169 states have internal predecessors, (1543), 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) [2024-11-03 05:42:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1543 transitions. [2024-11-03 05:42:39,011 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1543 transitions. Word has length 237 [2024-11-03 05:42:39,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:39,011 INFO L471 AbstractCegarLoop]: Abstraction has 1170 states and 1543 transitions. [2024-11-03 05:42:39,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-03 05:42:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1543 transitions. [2024-11-03 05:42:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-03 05:42:39,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:39,014 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:39,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-03 05:42:39,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:39,215 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:39,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:39,215 INFO L85 PathProgramCache]: Analyzing trace with hash 738911107, now seen corresponding path program 1 times [2024-11-03 05:42:39,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:39,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070152085] [2024-11-03 05:42:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:39,216 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:39,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:39,217 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:39,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-03 05:42:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:39,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:39,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-03 05:42:39,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-03 05:42:39,388 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:39,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070152085] [2024-11-03 05:42:39,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2070152085] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:39,388 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:39,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481816455] [2024-11-03 05:42:39,389 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:39,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:39,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:39,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:39,390 INFO L87 Difference]: Start difference. First operand 1170 states and 1543 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-03 05:42:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:39,499 INFO L93 Difference]: Finished difference Result 2447 states and 3269 transitions. [2024-11-03 05:42:39,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:39,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 237 [2024-11-03 05:42:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:39,504 INFO L225 Difference]: With dead ends: 2447 [2024-11-03 05:42:39,505 INFO L226 Difference]: Without dead ends: 1314 [2024-11-03 05:42:39,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:39,507 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 10 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:39,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 261 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:39,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-03 05:42:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2024-11-03 05:42:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.3000761614623) internal successors, (1707), 1313 states have internal predecessors, (1707), 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) [2024-11-03 05:42:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1707 transitions. [2024-11-03 05:42:39,536 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1707 transitions. Word has length 237 [2024-11-03 05:42:39,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:39,537 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1707 transitions. [2024-11-03 05:42:39,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-03 05:42:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1707 transitions. [2024-11-03 05:42:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-03 05:42:39,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:39,540 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:39,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:39,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:39,742 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:39,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:39,743 INFO L85 PathProgramCache]: Analyzing trace with hash -395584898, now seen corresponding path program 1 times [2024-11-03 05:42:39,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:39,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107702892] [2024-11-03 05:42:39,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:39,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:39,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:39,744 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:39,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-03 05:42:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:39,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:39,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-03 05:42:39,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-03 05:42:39,953 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:39,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107702892] [2024-11-03 05:42:39,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [107702892] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:39,953 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:39,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:39,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418463882] [2024-11-03 05:42:39,954 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:39,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:39,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:39,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:39,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:39,955 INFO L87 Difference]: Start difference. First operand 1314 states and 1707 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2024-11-03 05:42:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:40,092 INFO L93 Difference]: Finished difference Result 2739 states and 3609 transitions. [2024-11-03 05:42:40,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 272 [2024-11-03 05:42:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:40,099 INFO L225 Difference]: With dead ends: 2739 [2024-11-03 05:42:40,099 INFO L226 Difference]: Without dead ends: 1462 [2024-11-03 05:42:40,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:40,101 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 10 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:40,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 256 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-11-03 05:42:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1462. [2024-11-03 05:42:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 1.2833675564681726) internal successors, (1875), 1461 states have internal predecessors, (1875), 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) [2024-11-03 05:42:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1875 transitions. [2024-11-03 05:42:40,135 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1875 transitions. Word has length 272 [2024-11-03 05:42:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:40,135 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 1875 transitions. [2024-11-03 05:42:40,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2024-11-03 05:42:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1875 transitions. [2024-11-03 05:42:40,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-03 05:42:40,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:40,139 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:40,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-03 05:42:40,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:40,339 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:40,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:40,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1642586319, now seen corresponding path program 1 times [2024-11-03 05:42:40,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:40,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113229411] [2024-11-03 05:42:40,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:40,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:40,343 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:40,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-03 05:42:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:40,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:40,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-03 05:42:40,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 442 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2024-11-03 05:42:40,996 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:40,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113229411] [2024-11-03 05:42:40,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2113229411] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:40,996 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:40,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684403786] [2024-11-03 05:42:40,996 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:40,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:40,998 INFO L87 Difference]: Start difference. First operand 1462 states and 1875 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-03 05:42:41,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:41,034 INFO L93 Difference]: Finished difference Result 4329 states and 5547 transitions. [2024-11-03 05:42:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:41,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 308 [2024-11-03 05:42:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:41,044 INFO L225 Difference]: With dead ends: 4329 [2024-11-03 05:42:41,045 INFO L226 Difference]: Without dead ends: 2904 [2024-11-03 05:42:41,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:41,047 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 69 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:41,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 324 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:41,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2024-11-03 05:42:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2902. [2024-11-03 05:42:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2901 states have (on average 1.278524646673561) internal successors, (3709), 2901 states have internal predecessors, (3709), 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) [2024-11-03 05:42:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 3709 transitions. [2024-11-03 05:42:41,144 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 3709 transitions. Word has length 308 [2024-11-03 05:42:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:41,145 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 3709 transitions. [2024-11-03 05:42:41,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-11-03 05:42:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 3709 transitions. [2024-11-03 05:42:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-03 05:42:41,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:41,151 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:41,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-03 05:42:41,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:41,352 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:41,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 977282003, now seen corresponding path program 1 times [2024-11-03 05:42:41,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:41,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108276124] [2024-11-03 05:42:41,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:41,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:41,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:41,353 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:41,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-03 05:42:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:41,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 05:42:41,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2024-11-03 05:42:41,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2024-11-03 05:42:42,005 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:42,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108276124] [2024-11-03 05:42:42,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2108276124] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:42:42,005 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:42:42,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 05:42:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122982501] [2024-11-03 05:42:42,006 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:42,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:42,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:42,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:42,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:42,007 INFO L87 Difference]: Start difference. First operand 2902 states and 3709 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-11-03 05:42:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:42,059 INFO L93 Difference]: Finished difference Result 4325 states and 5521 transitions. [2024-11-03 05:42:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:42,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 308 [2024-11-03 05:42:42,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:42,069 INFO L225 Difference]: With dead ends: 4325 [2024-11-03 05:42:42,070 INFO L226 Difference]: Without dead ends: 2904 [2024-11-03 05:42:42,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 05:42:42,073 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 56 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:42,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 467 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:42:42,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2024-11-03 05:42:42,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2902. [2024-11-03 05:42:42,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2901 states have (on average 1.2747328507411237) internal successors, (3698), 2901 states have internal predecessors, (3698), 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) [2024-11-03 05:42:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 3698 transitions. [2024-11-03 05:42:42,175 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 3698 transitions. Word has length 308 [2024-11-03 05:42:42,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:42,176 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 3698 transitions. [2024-11-03 05:42:42,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-11-03 05:42:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 3698 transitions. [2024-11-03 05:42:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-03 05:42:42,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:42,181 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:42,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-03 05:42:42,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:42,382 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:42,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:42,383 INFO L85 PathProgramCache]: Analyzing trace with hash -828156331, now seen corresponding path program 1 times [2024-11-03 05:42:42,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:42,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485595220] [2024-11-03 05:42:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:42,383 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:42,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:42,384 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:42,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-03 05:42:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:42,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-03 05:42:42,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 370 proven. 381 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-03 05:42:42,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-03 05:42:42,943 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:42,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485595220] [2024-11-03 05:42:42,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1485595220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:42:42,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:42:42,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 4] total 20 [2024-11-03 05:42:42,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4526829] [2024-11-03 05:42:42,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:42:42,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-03 05:42:42,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:42,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-03 05:42:42,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-03 05:42:42,946 INFO L87 Difference]: Start difference. First operand 2902 states and 3698 transitions. Second operand has 20 states, 20 states have (on average 15.1) internal successors, (302), 20 states have internal predecessors, (302), 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) [2024-11-03 05:42:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:47,192 INFO L93 Difference]: Finished difference Result 6287 states and 8094 transitions. [2024-11-03 05:42:47,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-03 05:42:47,193 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.1) internal successors, (302), 20 states have internal predecessors, (302), 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 308 [2024-11-03 05:42:47,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:47,198 INFO L225 Difference]: With dead ends: 6287 [2024-11-03 05:42:47,198 INFO L226 Difference]: Without dead ends: 2016 [2024-11-03 05:42:47,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=305, Invalid=2047, Unknown=0, NotChecked=0, Total=2352 [2024-11-03 05:42:47,202 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 984 mSDsluCounter, 6019 mSDsCounter, 0 mSdLazyCounter, 10776 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 10902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 10776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:47,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 6644 Invalid, 10902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 10776 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-03 05:42:47,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2024-11-03 05:42:47,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 1481. [2024-11-03 05:42:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 1.287162162162162) internal successors, (1905), 1480 states have internal predecessors, (1905), 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) [2024-11-03 05:42:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1905 transitions. [2024-11-03 05:42:47,238 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1905 transitions. Word has length 308 [2024-11-03 05:42:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:47,238 INFO L471 AbstractCegarLoop]: Abstraction has 1481 states and 1905 transitions. [2024-11-03 05:42:47,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.1) internal successors, (302), 20 states have internal predecessors, (302), 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) [2024-11-03 05:42:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1905 transitions. [2024-11-03 05:42:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-03 05:42:47,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:47,241 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:47,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-03 05:42:47,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:47,444 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:47,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1703634950, now seen corresponding path program 1 times [2024-11-03 05:42:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114513343] [2024-11-03 05:42:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:47,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:47,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:47,447 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:47,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-03 05:42:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:47,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-03 05:42:47,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 427 proven. 320 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-03 05:42:47,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:47,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-03 05:42:47,915 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:47,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114513343] [2024-11-03 05:42:47,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [114513343] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:42:47,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:42:47,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2024-11-03 05:42:47,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685329316] [2024-11-03 05:42:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:42:47,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 05:42:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:47,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 05:42:47,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-03 05:42:47,917 INFO L87 Difference]: Start difference. First operand 1481 states and 1905 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) [2024-11-03 05:42:48,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:48,079 INFO L93 Difference]: Finished difference Result 2878 states and 3723 transitions. [2024-11-03 05:42:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 05:42:48,080 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 310 [2024-11-03 05:42:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:48,086 INFO L225 Difference]: With dead ends: 2878 [2024-11-03 05:42:48,086 INFO L226 Difference]: Without dead ends: 1547 [2024-11-03 05:42:48,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-03 05:42:48,089 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 29 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:48,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 210 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:42:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-03 05:42:48,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2024-11-03 05:42:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1546 states have (on average 1.315653298835705) internal successors, (2034), 1546 states have internal predecessors, (2034), 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) [2024-11-03 05:42:48,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2034 transitions. [2024-11-03 05:42:48,144 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2034 transitions. Word has length 310 [2024-11-03 05:42:48,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:48,145 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2034 transitions. [2024-11-03 05:42:48,145 INFO L472 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) [2024-11-03 05:42:48,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2034 transitions. [2024-11-03 05:42:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-03 05:42:48,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:42:48,148 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:48,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-03 05:42:48,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,349 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:42:48,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:42:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1448829880, now seen corresponding path program 1 times [2024-11-03 05:42:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:42:48,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153646555] [2024-11-03 05:42:48,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:42:48,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:42:48,351 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 05:42:48,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-03 05:42:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:42:48,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-03 05:42:48,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:42:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 374 proven. 386 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-03 05:42:48,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:42:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 480 proven. 13 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-03 05:42:48,881 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:42:48,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153646555] [2024-11-03 05:42:48,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [153646555] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:42:48,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:42:48,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 4] total 20 [2024-11-03 05:42:48,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723310155] [2024-11-03 05:42:48,881 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:42:48,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-03 05:42:48,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:42:48,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-03 05:42:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-03 05:42:48,883 INFO L87 Difference]: Start difference. First operand 1547 states and 2034 transitions. Second operand has 20 states, 20 states have (on average 15.3) internal successors, (306), 20 states have internal predecessors, (306), 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) [2024-11-03 05:42:49,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:42:49,886 INFO L93 Difference]: Finished difference Result 1824 states and 2432 transitions. [2024-11-03 05:42:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 05:42:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.3) internal successors, (306), 20 states have internal predecessors, (306), 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 310 [2024-11-03 05:42:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:42:49,887 INFO L225 Difference]: With dead ends: 1824 [2024-11-03 05:42:49,887 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 05:42:49,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2024-11-03 05:42:49,889 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 702 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 05:42:49,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1483 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 05:42:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 05:42:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 05:42:49,889 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) [2024-11-03 05:42:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 05:42:49,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 310 [2024-11-03 05:42:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:42:49,890 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 05:42:49,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.3) internal successors, (306), 20 states have internal predecessors, (306), 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) [2024-11-03 05:42:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 05:42:49,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 05:42:49,893 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 05:42:49,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-03 05:42:50,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 05:42:50,097 INFO L407 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:42:50,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 05:42:51,181 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 05:42:51,199 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 05:42:51,200 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 05:42:51,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:42:51 BoogieIcfgContainer [2024-11-03 05:42:51,206 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 05:42:51,207 INFO L158 Benchmark]: Toolchain (without parser) took 27021.35ms. Allocated memory was 343.9MB in the beginning and 413.1MB in the end (delta: 69.2MB). Free memory was 295.4MB in the beginning and 237.0MB in the end (delta: 58.4MB). Peak memory consumption was 228.8MB. Max. memory is 8.0GB. [2024-11-03 05:42:51,207 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 198.2MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 05:42:51,207 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.59ms. Allocated memory is still 343.9MB. Free memory was 295.0MB in the beginning and 277.2MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-03 05:42:51,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.29ms. Allocated memory is still 343.9MB. Free memory was 277.2MB in the beginning and 274.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 05:42:51,207 INFO L158 Benchmark]: Boogie Preprocessor took 69.85ms. Allocated memory is still 343.9MB. Free memory was 274.7MB in the beginning and 271.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 05:42:51,207 INFO L158 Benchmark]: RCFGBuilder took 832.20ms. Allocated memory is still 343.9MB. Free memory was 271.5MB in the beginning and 302.9MB in the end (delta: -31.4MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. [2024-11-03 05:42:51,208 INFO L158 Benchmark]: TraceAbstraction took 25675.84ms. Allocated memory was 343.9MB in the beginning and 413.1MB in the end (delta: 69.2MB). Free memory was 302.4MB in the beginning and 237.0MB in the end (delta: 65.4MB). Peak memory consumption was 234.2MB. Max. memory is 8.0GB. [2024-11-03 05:42:51,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 198.2MB. Free memory is still 152.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.59ms. Allocated memory is still 343.9MB. Free memory was 295.0MB in the beginning and 277.2MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.29ms. Allocated memory is still 343.9MB. Free memory was 277.2MB in the beginning and 274.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.85ms. Allocated memory is still 343.9MB. Free memory was 274.7MB in the beginning and 271.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 832.20ms. Allocated memory is still 343.9MB. Free memory was 271.5MB in the beginning and 302.9MB in the end (delta: -31.4MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. * TraceAbstraction took 25675.84ms. Allocated memory was 343.9MB in the beginning and 413.1MB in the end (delta: 69.2MB). Free memory was 302.4MB in the beginning and 237.0MB in the end (delta: 65.4MB). Peak memory consumption was 234.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 624]: 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, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.5s, OverallIterations: 29, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2906 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2906 mSDsluCounter, 14804 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9820 mSDsCounter, 507 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15661 IncrementalHoareTripleChecker+Invalid, 16168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 507 mSolverCounterUnsat, 4984 mSDtfsCounter, 15661 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9659 GetRequests, 9451 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2902occurred in iteration=25, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 29 MinimizatonAttempts, 539 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 4824 NumberOfCodeBlocks, 4824 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 9590 ConstructedInterpolants, 75 QuantifiedInterpolants, 17240 SizeOfPredicates, 414 NumberOfNonLiveVariables, 6013 ConjunctsInSsa, 768 ConjunctsInUnsatCore, 58 InterpolantComputations, 41 PerfectInterpolantSequences, 22113/24138 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: (((((((((((((((((((((((((48 == ag_Z) && (5 != blastFlag)) && (4528 == s__state)) && (0 == s__hit)) && (3 != blastFlag)) || ((((((((((((((48 == ag_Z) && (5 != blastFlag)) && (4384 != s__state)) && (16384 != s__state)) && (4560 == s__s3__tmp__next_state___0)) && (4368 != s__state)) && (4099 != s__state)) && (4096 != s__state)) && (0 == s__hit)) && (4385 != s__state)) && (12292 != s__state)) && (20480 != s__state)) && (4369 != s__state)) && (3 != blastFlag))) || ((((48 == ag_Z) && (4384 == s__state)) && (1 == blastFlag)) && (0 == s__hit))) || (((((48 == ag_Z) && (5 != blastFlag)) && (0 == s__hit)) && (4480 == s__state)) && (3 != blastFlag))) || ((((48 == ag_Z) && (4368 == s__state)) && (0 == s__hit)) && (0 == blastFlag))) || ((((48 == ag_Z) && (0 == s__hit)) && (0 == blastFlag)) && (12292 == s__state))) || (((((48 == ag_Z) && (5 != blastFlag)) && (0 == s__hit)) && (4464 == s__state)) && (3 != blastFlag))) || (((((4432 == s__state) && (48 == ag_Z)) && (5 != blastFlag)) && (0 == s__hit)) && (3 != blastFlag))) || ((((((5 != blastFlag) && (208 == ag_Y)) && (4512 == s__state)) && (4 != blastFlag)) && (0 != s__hit)) && (3 != blastFlag))) || (((((((5 != blastFlag) && (208 == ag_Y)) && (4 != blastFlag)) && (0 != s__hit)) && (4352 == s__state)) && (3 == s__s3__tmp__next_state___0)) && (3 != blastFlag))) || (((((48 == ag_Z) && (5 != blastFlag)) && (0 == s__hit)) && (4496 == s__state)) && (3 != blastFlag))) || (((((((5 != blastFlag) && (208 == ag_Y)) && (4 != blastFlag)) && (0 != s__hit)) && (3 == s__state)) && (3 == s__s3__tmp__next_state___0)) && (3 != blastFlag))) || ((((4368 == s__state) && (208 == ag_Y)) && (0 == blastFlag)) && (0 != s__hit))) || ((((4384 == s__state) && (1 == blastFlag)) && (208 == ag_Y)) && (0 != s__hit))) || ((((208 == ag_Y) && (0 == blastFlag)) && (0 != s__hit)) && (12292 == s__state))) || (((((4448 == s__state) && (48 == ag_Z)) && (5 != blastFlag)) && (0 == s__hit)) && (3 != blastFlag))) || ((((((5 != blastFlag) && (208 == ag_Y)) && (4528 == s__state)) && (4 != blastFlag)) && (0 != s__hit)) && (3 != blastFlag))) || (((((48 == ag_Z) && (5 != blastFlag)) && (4512 == s__state)) && (0 == s__hit)) && (3 != blastFlag))) || (((((5 != blastFlag) && (208 == ag_Y)) && (4 != blastFlag)) && (0 != s__hit)) && (3 != blastFlag))) || (((((48 == ag_Z) && (5 != blastFlag)) && (4 != blastFlag)) && (0 == s__hit)) && (3 != blastFlag))) || (((((48 == ag_Z) && (5 != blastFlag)) && (4 != blastFlag)) && (0 == s__hit)) && (4416 == s__state))) RESULT: Ultimate proved your program to be correct! [2024-11-03 05:42:51,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...