/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/soft_float_1-3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 05:43:00,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 05:43:00,230 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 05:43:00,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 05:43:00,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 05:43:00,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 05:43:00,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 05:43:00,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 05:43:00,266 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 05:43:00,266 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 05:43:00,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 05:43:00,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 05:43:00,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 05:43:00,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 05:43:00,269 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 05:43:00,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 05:43:00,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 05:43:00,273 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 05:43:00,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 05:43:00,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 05:43:00,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 05:43:00,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 05:43:00,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 05:43:00,275 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 05:43:00,275 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 05:43:00,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 05:43:00,276 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 05:43:00,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 05:43:00,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 05:43:00,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 05:43:00,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 05:43:00,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 05:43:00,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 05:43:00,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 05:43:00,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:43:00,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 05:43:00,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 05:43:00,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 05:43:00,280 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 05:43:00,280 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 05:43:00,280 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 05:43:00,281 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 05:43:00,281 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 05:43:00,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 05:43:00,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:00,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 05:43:00,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 05:43:00,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 05:43:00,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 05:43:00,529 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 05:43:00,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_1-3a.c.cil.c [2024-11-03 05:43:02,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 05:43:02,235 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 05:43:02,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_1-3a.c.cil.c [2024-11-03 05:43:02,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d3225fd/b7f452320ecf498e989e9c3c925b1a85/FLAG6335c3eed [2024-11-03 05:43:02,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d3225fd/b7f452320ecf498e989e9c3c925b1a85 [2024-11-03 05:43:02,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 05:43:02,262 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 05:43:02,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 05:43:02,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 05:43:02,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 05:43:02,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549ae6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02, skipping insertion in model container [2024-11-03 05:43:02,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,297 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 05:43:02,472 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/soft_float_1-3a.c.cil.c[730,743] [2024-11-03 05:43:02,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:43:02,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 05:43:02,568 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/soft_float_1-3a.c.cil.c[730,743] [2024-11-03 05:43:02,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 05:43:02,614 INFO L204 MainTranslator]: Completed translation [2024-11-03 05:43:02,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02 WrapperNode [2024-11-03 05:43:02,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 05:43:02,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 05:43:02,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 05:43:02,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 05:43:02,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,651 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 148 [2024-11-03 05:43:02,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 05:43:02,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 05:43:02,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 05:43:02,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 05:43:02,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,686 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 05:43:02,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,717 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 05:43:02,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 05:43:02,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 05:43:02,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 05:43:02,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (1/1) ... [2024-11-03 05:43:02,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 05:43:02,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 05:43:02,763 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 05:43:02,771 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 05:43:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 05:43:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 05:43:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-03 05:43:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-03 05:43:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 05:43:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 05:43:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-03 05:43:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-03 05:43:02,894 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 05:43:02,896 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 05:43:03,348 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-03 05:43:03,348 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 05:43:03,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 05:43:03,367 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-03 05:43:03,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:03 BoogieIcfgContainer [2024-11-03 05:43:03,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 05:43:03,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 05:43:03,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 05:43:03,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 05:43:03,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:43:02" (1/3) ... [2024-11-03 05:43:03,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652cd80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:03, skipping insertion in model container [2024-11-03 05:43:03,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:02" (2/3) ... [2024-11-03 05:43:03,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652cd80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:03, skipping insertion in model container [2024-11-03 05:43:03,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:03" (3/3) ... [2024-11-03 05:43:03,380 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2024-11-03 05:43:03,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 05:43:03,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 05:43:03,465 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 05:43:03,473 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;@152813c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 05:43:03,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 05:43:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 62 states have internal predecessors, (94), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-03 05:43:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-03 05:43:03,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:03,486 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:03,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:03,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:03,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1607439287, now seen corresponding path program 1 times [2024-11-03 05:43:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:03,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725101731] [2024-11-03 05:43:03,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:03,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:03,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:03,504 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 05:43:03,506 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 05:43:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:03,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-03 05:43:03,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:03,992 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:04,371 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725101731] [2024-11-03 05:43:04,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [725101731] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:04,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 16 [2024-11-03 05:43:04,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238073727] [2024-11-03 05:43:04,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:04,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 05:43:04,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:04,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 05:43:04,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-03 05:43:04,416 INFO L87 Difference]: Start difference. First operand has 72 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 62 states have internal predecessors, (94), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-03 05:43:04,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:04,900 INFO L93 Difference]: Finished difference Result 178 states and 307 transitions. [2024-11-03 05:43:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 05:43:04,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2024-11-03 05:43:04,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:04,921 INFO L225 Difference]: With dead ends: 178 [2024-11-03 05:43:04,922 INFO L226 Difference]: Without dead ends: 105 [2024-11-03 05:43:04,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:04,930 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 24 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:04,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 938 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:43:04,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-03 05:43:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 85. [2024-11-03 05:43:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 69 states have (on average 1.434782608695652) internal successors, (99), 70 states have internal predecessors, (99), 12 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (17), 13 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-03 05:43:04,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 128 transitions. [2024-11-03 05:43:04,994 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 128 transitions. Word has length 32 [2024-11-03 05:43:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:04,995 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 128 transitions. [2024-11-03 05:43:04,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-03 05:43:04,998 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 128 transitions. [2024-11-03 05:43:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-03 05:43:05,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:05,001 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:43:05,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 05:43:05,206 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 05:43:05,206 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:05,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:05,207 INFO L85 PathProgramCache]: Analyzing trace with hash 861184615, now seen corresponding path program 1 times [2024-11-03 05:43:05,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701546544] [2024-11-03 05:43:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:05,208 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:05,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:05,211 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 05:43:05,213 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 05:43:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:05,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-03 05:43:05,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:05,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:05,863 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:05,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701546544] [2024-11-03 05:43:05,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [701546544] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:05,864 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:05,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 6] imperfect sequences [] total 17 [2024-11-03 05:43:05,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481065328] [2024-11-03 05:43:05,864 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:05,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-03 05:43:05,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:05,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-03 05:43:05,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-03 05:43:05,867 INFO L87 Difference]: Start difference. First operand 85 states and 128 transitions. Second operand has 17 states, 16 states have (on average 2.4375) internal successors, (39), 13 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:06,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:06,589 INFO L93 Difference]: Finished difference Result 193 states and 305 transitions. [2024-11-03 05:43:06,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 05:43:06,590 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.4375) internal successors, (39), 13 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2024-11-03 05:43:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:06,593 INFO L225 Difference]: With dead ends: 193 [2024-11-03 05:43:06,593 INFO L226 Difference]: Without dead ends: 151 [2024-11-03 05:43:06,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:06,595 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 66 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:06,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1744 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 05:43:06,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-03 05:43:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 99. [2024-11-03 05:43:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.4096385542168675) internal successors, (117), 81 states have internal predecessors, (117), 12 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (17), 16 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-03 05:43:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 146 transitions. [2024-11-03 05:43:06,617 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 146 transitions. Word has length 36 [2024-11-03 05:43:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:06,617 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 146 transitions. [2024-11-03 05:43:06,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.4375) internal successors, (39), 13 states have internal predecessors, (39), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 146 transitions. [2024-11-03 05:43:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-03 05:43:06,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:06,623 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 05:43:06,626 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 05:43:06,826 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 05:43:06,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:06,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1541242985, now seen corresponding path program 1 times [2024-11-03 05:43:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:06,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605700770] [2024-11-03 05:43:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:06,828 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:06,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:06,831 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 05:43:06,833 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 05:43:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:06,897 WARN L253 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-03 05:43:06,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:07,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:07,452 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:07,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605700770] [2024-11-03 05:43:07,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1605700770] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:07,452 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:07,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 7] imperfect sequences [] total 20 [2024-11-03 05:43:07,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666717820] [2024-11-03 05:43:07,452 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:07,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-03 05:43:07,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:07,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-03 05:43:07,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-03 05:43:07,457 INFO L87 Difference]: Start difference. First operand 99 states and 146 transitions. Second operand has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 16 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:08,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:08,339 INFO L93 Difference]: Finished difference Result 263 states and 419 transitions. [2024-11-03 05:43:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-03 05:43:08,340 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 16 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2024-11-03 05:43:08,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:08,342 INFO L225 Difference]: With dead ends: 263 [2024-11-03 05:43:08,343 INFO L226 Difference]: Without dead ends: 215 [2024-11-03 05:43:08,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-11-03 05:43:08,348 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 121 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:08,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1107 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-03 05:43:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-03 05:43:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 161. [2024-11-03 05:43:08,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 135 states have internal predecessors, (191), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (25), 25 states have call predecessors, (25), 18 states have call successors, (25) [2024-11-03 05:43:08,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 235 transitions. [2024-11-03 05:43:08,380 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 235 transitions. Word has length 36 [2024-11-03 05:43:08,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:08,381 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 235 transitions. [2024-11-03 05:43:08,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.210526315789474) internal successors, (42), 16 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 235 transitions. [2024-11-03 05:43:08,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-03 05:43:08,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:08,384 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-03 05:43:08,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 05:43:08,588 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 05:43:08,588 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:08,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1860643154, now seen corresponding path program 1 times [2024-11-03 05:43:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991367641] [2024-11-03 05:43:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:08,590 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:08,594 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 05:43:08,597 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 05:43:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:08,663 WARN L253 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 05:43:08,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:43:08,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:09,122 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:09,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991367641] [2024-11-03 05:43:09,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1991367641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:09,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:09,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8] total 19 [2024-11-03 05:43:09,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327772544] [2024-11-03 05:43:09,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:09,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-03 05:43:09,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:09,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-03 05:43:09,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:09,125 INFO L87 Difference]: Start difference. First operand 161 states and 235 transitions. Second operand has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:09,653 INFO L93 Difference]: Finished difference Result 211 states and 326 transitions. [2024-11-03 05:43:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-03 05:43:09,654 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-03 05:43:09,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:09,656 INFO L225 Difference]: With dead ends: 211 [2024-11-03 05:43:09,656 INFO L226 Difference]: Without dead ends: 173 [2024-11-03 05:43:09,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-03 05:43:09,658 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 40 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:09,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 944 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:43:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-03 05:43:09,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 152. [2024-11-03 05:43:09,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 132 states have (on average 1.371212121212121) internal successors, (181), 129 states have internal predecessors, (181), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (22), 22 states have call predecessors, (22), 15 states have call successors, (22) [2024-11-03 05:43:09,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 219 transitions. [2024-11-03 05:43:09,672 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 219 transitions. Word has length 40 [2024-11-03 05:43:09,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:09,672 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 219 transitions. [2024-11-03 05:43:09,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 17 states have internal predecessors, (49), 3 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:09,673 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions. [2024-11-03 05:43:09,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-03 05:43:09,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:09,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-03 05:43:09,681 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 05:43:09,876 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 05:43:09,877 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:09,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1120951388, now seen corresponding path program 1 times [2024-11-03 05:43:09,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:09,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549137375] [2024-11-03 05:43:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:09,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:09,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:09,881 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 05:43:09,882 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 05:43:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:09,946 WARN L253 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-03 05:43:09,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:43:10,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:10,405 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:10,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549137375] [2024-11-03 05:43:10,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [549137375] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:10,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 18 [2024-11-03 05:43:10,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843118107] [2024-11-03 05:43:10,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:10,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 05:43:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:10,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 05:43:10,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:10,407 INFO L87 Difference]: Start difference. First operand 152 states and 219 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:10,526 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2024-11-03 05:43:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 05:43:10,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-03 05:43:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:10,528 INFO L225 Difference]: With dead ends: 218 [2024-11-03 05:43:10,528 INFO L226 Difference]: Without dead ends: 180 [2024-11-03 05:43:10,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:10,530 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 32 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:10,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 493 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:43:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-03 05:43:10,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2024-11-03 05:43:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 155 states have (on average 1.3870967741935485) internal successors, (215), 154 states have internal predecessors, (215), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (25), 25 states have call predecessors, (25), 18 states have call successors, (25) [2024-11-03 05:43:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2024-11-03 05:43:10,542 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 40 [2024-11-03 05:43:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:10,542 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2024-11-03 05:43:10,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2024-11-03 05:43:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-03 05:43:10,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:10,544 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 05:43:10,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-03 05:43:10,745 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 05:43:10,745 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:10,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:10,746 INFO L85 PathProgramCache]: Analyzing trace with hash 339137576, now seen corresponding path program 1 times [2024-11-03 05:43:10,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:10,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377275544] [2024-11-03 05:43:10,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:10,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:10,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:10,747 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 05:43:10,748 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 05:43:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:10,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-03 05:43:10,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:11,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:11,287 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:11,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377275544] [2024-11-03 05:43:11,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1377275544] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:11,287 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:11,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 4] imperfect sequences [] total 21 [2024-11-03 05:43:11,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459875252] [2024-11-03 05:43:11,287 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:11,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-03 05:43:11,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-03 05:43:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-03 05:43:11,289 INFO L87 Difference]: Start difference. First operand 178 states and 259 transitions. Second operand has 21 states, 20 states have (on average 2.5) internal successors, (50), 18 states have internal predecessors, (50), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:11,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:11,892 INFO L93 Difference]: Finished difference Result 288 states and 435 transitions. [2024-11-03 05:43:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 05:43:11,893 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.5) internal successors, (50), 18 states have internal predecessors, (50), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-03 05:43:11,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:11,895 INFO L225 Difference]: With dead ends: 288 [2024-11-03 05:43:11,895 INFO L226 Difference]: Without dead ends: 222 [2024-11-03 05:43:11,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2024-11-03 05:43:11,898 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 91 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:11,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1133 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 05:43:11,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-03 05:43:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 203. [2024-11-03 05:43:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 181 states have (on average 1.3314917127071824) internal successors, (241), 178 states have internal predecessors, (241), 18 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (24), 24 states have call predecessors, (24), 17 states have call successors, (24) [2024-11-03 05:43:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 283 transitions. [2024-11-03 05:43:11,918 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 283 transitions. Word has length 43 [2024-11-03 05:43:11,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:11,936 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 283 transitions. [2024-11-03 05:43:11,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.5) internal successors, (50), 18 states have internal predecessors, (50), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:11,936 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 283 transitions. [2024-11-03 05:43:11,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:43:11,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:11,939 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:43:11,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-03 05:43:12,146 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 05:43:12,146 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:12,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash -690232792, now seen corresponding path program 1 times [2024-11-03 05:43:12,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:12,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95618657] [2024-11-03 05:43:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:12,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:12,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:12,148 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 05:43:12,150 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 05:43:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:12,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-03 05:43:12,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:12,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:12,676 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:12,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95618657] [2024-11-03 05:43:12,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [95618657] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:12,676 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:12,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 6] imperfect sequences [] total 21 [2024-11-03 05:43:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430608399] [2024-11-03 05:43:12,676 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:12,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-03 05:43:12,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:12,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-03 05:43:12,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2024-11-03 05:43:12,678 INFO L87 Difference]: Start difference. First operand 203 states and 283 transitions. Second operand has 21 states, 20 states have (on average 2.7) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:13,330 INFO L93 Difference]: Finished difference Result 315 states and 466 transitions. [2024-11-03 05:43:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-03 05:43:13,330 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-03 05:43:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:13,333 INFO L225 Difference]: With dead ends: 315 [2024-11-03 05:43:13,333 INFO L226 Difference]: Without dead ends: 279 [2024-11-03 05:43:13,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2024-11-03 05:43:13,334 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 80 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:13,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 923 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 05:43:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-03 05:43:13,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 241. [2024-11-03 05:43:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 213 states have (on average 1.3286384976525822) internal successors, (283), 211 states have internal predecessors, (283), 24 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (30), 30 states have call predecessors, (30), 23 states have call successors, (30) [2024-11-03 05:43:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 337 transitions. [2024-11-03 05:43:13,345 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 337 transitions. Word has length 44 [2024-11-03 05:43:13,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:13,346 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 337 transitions. [2024-11-03 05:43:13,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.7) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:13,346 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 337 transitions. [2024-11-03 05:43:13,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:43:13,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:13,347 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:43:13,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-03 05:43:13,547 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 05:43:13,548 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:13,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1084774570, now seen corresponding path program 1 times [2024-11-03 05:43:13,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:13,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188361854] [2024-11-03 05:43:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:13,549 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:13,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:13,551 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 05:43:13,553 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 05:43:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:13,603 WARN L253 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-03 05:43:13,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:13,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:13,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:14,064 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:14,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188361854] [2024-11-03 05:43:14,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1188361854] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:14,064 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:14,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 5] imperfect sequences [] total 22 [2024-11-03 05:43:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138624825] [2024-11-03 05:43:14,064 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:14,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-03 05:43:14,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:14,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-03 05:43:14,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2024-11-03 05:43:14,066 INFO L87 Difference]: Start difference. First operand 241 states and 337 transitions. Second operand has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 17 states have internal predecessors, (53), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:14,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:14,596 INFO L93 Difference]: Finished difference Result 266 states and 383 transitions. [2024-11-03 05:43:14,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-03 05:43:14,597 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 17 states have internal predecessors, (53), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-11-03 05:43:14,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:14,598 INFO L225 Difference]: With dead ends: 266 [2024-11-03 05:43:14,598 INFO L226 Difference]: Without dead ends: 259 [2024-11-03 05:43:14,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2024-11-03 05:43:14,600 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 61 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:14,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1147 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:43:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-03 05:43:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 241. [2024-11-03 05:43:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 213 states have (on average 1.3145539906103287) internal successors, (280), 211 states have internal predecessors, (280), 24 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (30), 30 states have call predecessors, (30), 23 states have call successors, (30) [2024-11-03 05:43:14,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 334 transitions. [2024-11-03 05:43:14,610 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 334 transitions. Word has length 44 [2024-11-03 05:43:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:14,610 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 334 transitions. [2024-11-03 05:43:14,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 17 states have internal predecessors, (53), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:14,611 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 334 transitions. [2024-11-03 05:43:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:43:14,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:14,612 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:14,614 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 05:43:14,813 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 05:43:14,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:14,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1077808761, now seen corresponding path program 2 times [2024-11-03 05:43:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624469349] [2024-11-03 05:43:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:14,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:14,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:14,815 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 05:43:14,816 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 05:43:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:14,879 WARN L253 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-03 05:43:14,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 05:43:15,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-03 05:43:15,468 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:15,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624469349] [2024-11-03 05:43:15,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [624469349] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 05:43:15,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 05:43:15,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 20 [2024-11-03 05:43:15,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895120544] [2024-11-03 05:43:15,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 05:43:15,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-03 05:43:15,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:15,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-03 05:43:15,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-03 05:43:15,470 INFO L87 Difference]: Start difference. First operand 241 states and 334 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 05:43:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:16,019 INFO L93 Difference]: Finished difference Result 481 states and 689 transitions. [2024-11-03 05:43:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 05:43:16,020 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2024-11-03 05:43:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:16,021 INFO L225 Difference]: With dead ends: 481 [2024-11-03 05:43:16,022 INFO L226 Difference]: Without dead ends: 322 [2024-11-03 05:43:16,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2024-11-03 05:43:16,023 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 64 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:16,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1094 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 05:43:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-03 05:43:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 245. [2024-11-03 05:43:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 216 states have (on average 1.3194444444444444) internal successors, (285), 215 states have internal predecessors, (285), 24 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (37), 30 states have call predecessors, (37), 23 states have call successors, (37) [2024-11-03 05:43:16,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 346 transitions. [2024-11-03 05:43:16,039 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 346 transitions. Word has length 44 [2024-11-03 05:43:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:16,040 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 346 transitions. [2024-11-03 05:43:16,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 17 states have internal predecessors, (48), 4 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-03 05:43:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 346 transitions. [2024-11-03 05:43:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-03 05:43:16,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:16,041 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:16,043 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 05:43:16,242 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 05:43:16,243 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:16,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1335974199, now seen corresponding path program 1 times [2024-11-03 05:43:16,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:16,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401499477] [2024-11-03 05:43:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:16,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:16,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:16,245 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 05:43:16,246 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 05:43:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:16,310 WARN L253 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-03 05:43:16,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 05:43:16,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:16,741 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 05:43:16,742 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:16,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401499477] [2024-11-03 05:43:16,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [401499477] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:16,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:16,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-03 05:43:16,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771107921] [2024-11-03 05:43:16,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:16,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 05:43:16,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:16,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 05:43:16,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:16,743 INFO L87 Difference]: Start difference. First operand 245 states and 346 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:16,800 INFO L93 Difference]: Finished difference Result 251 states and 351 transitions. [2024-11-03 05:43:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 05:43:16,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2024-11-03 05:43:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:16,802 INFO L225 Difference]: With dead ends: 251 [2024-11-03 05:43:16,802 INFO L226 Difference]: Without dead ends: 249 [2024-11-03 05:43:16,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:16,803 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:16,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 464 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:43:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-03 05:43:16,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-03 05:43:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 219 states have (on average 1.3150684931506849) internal successors, (288), 218 states have internal predecessors, (288), 24 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (37), 30 states have call predecessors, (37), 23 states have call successors, (37) [2024-11-03 05:43:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 349 transitions. [2024-11-03 05:43:16,813 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 349 transitions. Word has length 44 [2024-11-03 05:43:16,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:16,813 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 349 transitions. [2024-11-03 05:43:16,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:16,813 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 349 transitions. [2024-11-03 05:43:16,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-03 05:43:16,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:16,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-03 05:43:16,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-03 05:43:17,014 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 05:43:17,015 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:17,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:17,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1134786859, now seen corresponding path program 1 times [2024-11-03 05:43:17,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:17,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131690882] [2024-11-03 05:43:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:17,016 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:17,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:17,018 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 05:43:17,019 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 05:43:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:17,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-03 05:43:17,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-03 05:43:17,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:17,443 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:17,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131690882] [2024-11-03 05:43:17,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2131690882] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:17,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:17,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2024-11-03 05:43:17,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956246322] [2024-11-03 05:43:17,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:17,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 05:43:17,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:17,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 05:43:17,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:17,445 INFO L87 Difference]: Start difference. First operand 249 states and 349 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:17,466 INFO L93 Difference]: Finished difference Result 383 states and 541 transitions. [2024-11-03 05:43:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 05:43:17,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-03 05:43:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:17,468 INFO L225 Difference]: With dead ends: 383 [2024-11-03 05:43:17,468 INFO L226 Difference]: Without dead ends: 331 [2024-11-03 05:43:17,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:17,469 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 27 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:17,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 285 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 05:43:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-03 05:43:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 268. [2024-11-03 05:43:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 233 states have internal predecessors, (310), 27 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (40), 33 states have call predecessors, (40), 26 states have call successors, (40) [2024-11-03 05:43:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 377 transitions. [2024-11-03 05:43:17,480 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 377 transitions. Word has length 45 [2024-11-03 05:43:17,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:17,481 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 377 transitions. [2024-11-03 05:43:17,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 377 transitions. [2024-11-03 05:43:17,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-03 05:43:17,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:17,482 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:43:17,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-03 05:43:17,682 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 05:43:17,683 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:17,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:17,684 INFO L85 PathProgramCache]: Analyzing trace with hash 702695573, now seen corresponding path program 1 times [2024-11-03 05:43:17,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:17,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815924287] [2024-11-03 05:43:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:17,684 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:17,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:17,685 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 05:43:17,686 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 05:43:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:17,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-03 05:43:17,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:17,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-03 05:43:18,260 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:18,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815924287] [2024-11-03 05:43:18,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1815924287] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:18,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:18,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 26 [2024-11-03 05:43:18,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273407848] [2024-11-03 05:43:18,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:18,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 05:43:18,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:18,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 05:43:18,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2024-11-03 05:43:18,262 INFO L87 Difference]: Start difference. First operand 268 states and 377 transitions. Second operand has 18 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 05:43:18,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:18,666 INFO L93 Difference]: Finished difference Result 325 states and 453 transitions. [2024-11-03 05:43:18,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-03 05:43:18,667 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-11-03 05:43:18,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:18,669 INFO L225 Difference]: With dead ends: 325 [2024-11-03 05:43:18,669 INFO L226 Difference]: Without dead ends: 316 [2024-11-03 05:43:18,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2024-11-03 05:43:18,670 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 60 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:18,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 878 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 05:43:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-03 05:43:18,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 284. [2024-11-03 05:43:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 251 states have (on average 1.302788844621514) internal successors, (327), 249 states have internal predecessors, (327), 27 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (40), 33 states have call predecessors, (40), 26 states have call successors, (40) [2024-11-03 05:43:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 394 transitions. [2024-11-03 05:43:18,681 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 394 transitions. Word has length 48 [2024-11-03 05:43:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:18,681 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 394 transitions. [2024-11-03 05:43:18,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.176470588235294) internal successors, (37), 15 states have internal predecessors, (37), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-03 05:43:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 394 transitions. [2024-11-03 05:43:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-03 05:43:18,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:18,682 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:43:18,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-03 05:43:18,884 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 05:43:18,885 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:18,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:18,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1817264361, now seen corresponding path program 1 times [2024-11-03 05:43:18,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:18,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25818732] [2024-11-03 05:43:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:18,886 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:18,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:18,888 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 05:43:18,889 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 05:43:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:18,942 WARN L253 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-03 05:43:18,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-03 05:43:19,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:19,269 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-03 05:43:19,269 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:19,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25818732] [2024-11-03 05:43:19,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [25818732] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 05:43:19,270 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 05:43:19,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 4] imperfect sequences [] total 18 [2024-11-03 05:43:19,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836508345] [2024-11-03 05:43:19,270 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:19,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 05:43:19,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:19,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 05:43:19,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:19,272 INFO L87 Difference]: Start difference. First operand 284 states and 394 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:19,730 INFO L93 Difference]: Finished difference Result 331 states and 460 transitions. [2024-11-03 05:43:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 05:43:19,731 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-11-03 05:43:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:19,733 INFO L225 Difference]: With dead ends: 331 [2024-11-03 05:43:19,733 INFO L226 Difference]: Without dead ends: 249 [2024-11-03 05:43:19,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2024-11-03 05:43:19,735 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 58 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:19,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 821 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 05:43:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-03 05:43:19,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 225. [2024-11-03 05:43:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 192 states have (on average 1.3385416666666667) internal successors, (257), 192 states have internal predecessors, (257), 27 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (38), 31 states have call predecessors, (38), 26 states have call successors, (38) [2024-11-03 05:43:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 322 transitions. [2024-11-03 05:43:19,750 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 322 transitions. Word has length 48 [2024-11-03 05:43:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:19,750 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 322 transitions. [2024-11-03 05:43:19,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 15 states have internal predecessors, (54), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-03 05:43:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 322 transitions. [2024-11-03 05:43:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-03 05:43:19,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:19,751 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:19,754 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 05:43:19,953 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 05:43:19,954 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:19,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:19,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1060673824, now seen corresponding path program 1 times [2024-11-03 05:43:19,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:19,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731746218] [2024-11-03 05:43:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:19,955 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:19,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:19,959 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 05:43:19,960 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 05:43:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 05:43:20,034 WARN L253 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-03 05:43:20,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 05:43:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-03 05:43:20,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 05:43:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-03 05:43:20,415 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 05:43:20,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731746218] [2024-11-03 05:43:20,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [731746218] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 05:43:20,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 05:43:20,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-03 05:43:20,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192651033] [2024-11-03 05:43:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 05:43:20,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 05:43:20,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 05:43:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 05:43:20,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-03 05:43:20,416 INFO L87 Difference]: Start difference. First operand 225 states and 322 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:20,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 05:43:20,563 INFO L93 Difference]: Finished difference Result 280 states and 398 transitions. [2024-11-03 05:43:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 05:43:20,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-11-03 05:43:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 05:43:20,565 INFO L225 Difference]: With dead ends: 280 [2024-11-03 05:43:20,565 INFO L226 Difference]: Without dead ends: 216 [2024-11-03 05:43:20,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-03 05:43:20,566 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 17 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 05:43:20,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 441 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 05:43:20,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-03 05:43:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2024-11-03 05:43:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 175 states have (on average 1.3542857142857143) internal successors, (237), 178 states have internal predecessors, (237), 29 states have call successors, (29), 3 states have call predecessors, (29), 5 states have return successors, (37), 30 states have call predecessors, (37), 27 states have call successors, (37) [2024-11-03 05:43:20,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 303 transitions. [2024-11-03 05:43:20,575 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 303 transitions. Word has length 49 [2024-11-03 05:43:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 05:43:20,576 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 303 transitions. [2024-11-03 05:43:20,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-03 05:43:20,576 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 303 transitions. [2024-11-03 05:43:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-03 05:43:20,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 05:43:20,577 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-03 05:43:20,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-03 05:43:20,779 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 05:43:20,779 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 05:43:20,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 05:43:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash 45509775, now seen corresponding path program 1 times [2024-11-03 05:43:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 05:43:20,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880211786] [2024-11-03 05:43:20,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 05:43:20,780 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 05:43:20,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 05:43:20,783 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 05:43:20,784 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 05:43:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 05:43:20,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 05:43:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 05:43:20,934 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 05:43:20,935 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 05:43:20,936 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 05:43:20,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-03 05:43:21,140 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 05:43:21,143 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 05:43:21,191 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 05:43:21,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:43:21 BoogieIcfgContainer [2024-11-03 05:43:21,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 05:43:21,195 INFO L158 Benchmark]: Toolchain (without parser) took 18933.56ms. Allocated memory was 186.6MB in the beginning and 312.5MB in the end (delta: 125.8MB). Free memory was 140.0MB in the beginning and 158.8MB in the end (delta: -18.8MB). Peak memory consumption was 108.1MB. Max. memory is 8.0GB. [2024-11-03 05:43:21,195 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 186.6MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 05:43:21,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.46ms. Allocated memory is still 186.6MB. Free memory was 140.0MB in the beginning and 123.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-03 05:43:21,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.26ms. Allocated memory is still 186.6MB. Free memory was 123.5MB in the beginning and 121.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 05:43:21,196 INFO L158 Benchmark]: Boogie Preprocessor took 71.66ms. Allocated memory is still 186.6MB. Free memory was 121.8MB in the beginning and 119.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 05:43:21,197 INFO L158 Benchmark]: RCFGBuilder took 643.14ms. Allocated memory is still 186.6MB. Free memory was 119.4MB in the beginning and 157.8MB in the end (delta: -38.4MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. [2024-11-03 05:43:21,197 INFO L158 Benchmark]: TraceAbstraction took 17822.72ms. Allocated memory was 186.6MB in the beginning and 312.5MB in the end (delta: 125.8MB). Free memory was 157.2MB in the beginning and 158.8MB in the end (delta: -1.6MB). Peak memory consumption was 124.3MB. Max. memory is 8.0GB. [2024-11-03 05:43:21,199 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 186.6MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 352.46ms. Allocated memory is still 186.6MB. Free memory was 140.0MB in the beginning and 123.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.26ms. Allocated memory is still 186.6MB. Free memory was 123.5MB in the beginning and 121.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.66ms. Allocated memory is still 186.6MB. Free memory was 121.8MB in the beginning and 119.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 643.14ms. Allocated memory is still 186.6MB. Free memory was 119.4MB in the beginning and 157.8MB in the end (delta: -38.4MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. * TraceAbstraction took 17822.72ms. Allocated memory was 186.6MB in the beginning and 312.5MB in the end (delta: 125.8MB). Free memory was 157.2MB in the beginning and 158.8MB in the end (delta: -1.6MB). Peak memory consumption was 124.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add ; [L233] unsigned int zero ; [L234] int sa ; [L235] int sb ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L240] int tmp___3 ; [L241] int tmp___4 ; [L242] int tmp___5 ; [L243] int tmp___6 ; [L244] int tmp___7 ; [L245] int tmp___8 ; [L246] int tmp___9 ; [L247] int __retres23 ; [L251] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L251] RET, EXPR base2flt(0, 0) [L251] zero = base2flt(0, 0) [L252] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=7, \old(m)=16777217] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L29] COND FALSE !(! m) VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L57] COND TRUE 1 VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=7, \old(m)=16777217, e=7, m=16777217] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=7, \old(m)=16777217, __retres4=-2030043135] [L80] return (__retres4); VAL [\old(e)=7, \old(m)=16777217, \result=-2030043135] [L252] RET, EXPR base2flt(ma, ea) VAL [ea=7, ma=16777217, zero=0] [L252] a = base2flt(ma, ea) [L253] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=70, \old(m)=33554431] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L29] COND FALSE !(! m) VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L57] COND TRUE 1 VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=70, \old(m)=33554431, e=70, m=33554431] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=70, \old(m)=33554431, __retres4=-956301313] [L80] return (__retres4); VAL [\old(e)=70, \old(m)=33554431, \result=-956301313] [L253] RET, EXPR base2flt(mb, eb) VAL [a=-2030043135, ea=7, eb=70, ma=16777217, mb=33554431, zero=0] [L253] b = base2flt(mb, eb) [L255] COND FALSE !(a < zero) VAL [a=-2030043135, b=-956301313, ea=7, eb=70, ma=16777217, mb=33554431, zero=0] [L258] COND TRUE a > zero [L259] tmp = 1 VAL [a=-2030043135, b=-956301313, ea=7, eb=70, ma=16777217, mb=33554431, tmp=1, zero=0] [L263] sa = tmp VAL [a=-2030043135, b=-956301313, ea=7, eb=70, ma=16777217, mb=33554431, sa=1, zero=0] [L265] COND FALSE !(b < zero) VAL [a=-2030043135, b=-956301313, ea=7, eb=70, ma=16777217, mb=33554431, sa=1, zero=0] [L268] COND TRUE b > zero [L269] tmp___0 = 1 VAL [a=-2030043135, b=-956301313, ea=7, eb=70, ma=16777217, mb=33554431, sa=1, tmp___0=1] [L273] sb = tmp___0 VAL [a=-2030043135, b=-956301313, ea=7, eb=70, ma=16777217, mb=33554431, sa=1, sb=1] [L276] CALL addflt(a, b) [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [a=-2030043135, b=-956301313] [L94] COND TRUE a < b [L95] tmp = a [L96] a = b [L97] b = tmp VAL [a=-956301313, b=-2030043135] [L101] COND FALSE !(! b) [L108] ma = a & ((1U << 24U) - 1U) [L109] ea = (int )(a >> 24U) - 128 [L110] ma = ma | (1U << 24U) [L111] mb = b & ((1U << 24U) - 1U) [L112] eb = (int )(b >> 24U) - 128 [L113] mb = mb | (1U << 24U) VAL [a=-956301313, ea=70, eb=7, ma=33554431, mb=16777217] [L114] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1] [L114] RET __VERIFIER_assert(ea >= eb) VAL [a=-956301313, ea=70, eb=7, ma=33554431, mb=16777217] [L115] delta = ea - eb VAL [a=-956301313, delta=63, ea=70, ma=33554431, mb=16777217] [L116] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0] [L17] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 799 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 744 mSDsluCounter, 12412 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11257 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6881 IncrementalHoareTripleChecker+Invalid, 6999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 1155 mSDtfsCounter, 6881 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1223 GetRequests, 902 SyntacticMatches, 13 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=12, InterpolantAutomatonStates: 239, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 426 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 643 NumberOfCodeBlocks, 643 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1158 ConstructedInterpolants, 16 QuantifiedInterpolants, 3560 SizeOfPredicates, 167 NumberOfNonLiveVariables, 1133 ConjunctsInSsa, 576 ConjunctsInUnsatCore, 28 InterpolantComputations, 18 PerfectInterpolantSequences, 388/444 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-03 05:43:21,235 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...