/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-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-func-interl.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 12:19:46,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 12:19:46,441 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 12:19:46,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 12:19:46,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 12:19:46,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 12:19:46,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 12:19:46,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 12:19:46,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 12:19:46,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 12:19:46,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 12:19:46,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 12:19:46,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 12:19:46,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 12:19:46,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 12:19:46,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 12:19:46,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 12:19:46,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 12:19:46,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 12:19:46,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 12:19:46,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 12:19:46,506 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 12:19:46,506 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 12:19:46,506 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 12:19:46,507 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 12:19:46,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 12:19:46,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 12:19:46,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 12:19:46,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 12:19:46,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 12:19:46,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 12:19:46,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 12:19:46,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 12:19:46,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 12:19:46,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 12:19:46,510 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 12:19:46,510 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 12:19:46,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 12:19:46,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 12:19:46,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 12:19:46,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 12:19:46,512 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 12:19:46,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-01 12:19:46,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 12:19:46,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 12:19:46,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 12:19:46,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 12:19:46,946 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 12:19:46,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-func-interl.c [2024-11-01 12:19:48,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 12:19:49,135 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 12:19:49,136 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-func-interl.c [2024-11-01 12:19:49,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c440d02e/84a7d2cd422148febb11394323aff981/FLAGfa16d2df0 [2024-11-01 12:19:49,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c440d02e/84a7d2cd422148febb11394323aff981 [2024-11-01 12:19:49,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 12:19:49,259 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 12:19:49,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 12:19:49,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 12:19:49,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 12:19:49,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 12:19:49" (1/1) ... [2024-11-01 12:19:49,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5bc05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:49, skipping insertion in model container [2024-11-01 12:19:49,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 12:19:49" (1/1) ... [2024-11-01 12:19:49,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 12:19:49,709 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-func-interl.c[1169,1182] [2024-11-01 12:19:50,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 12:19:50,325 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 12:19:50,339 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.at.7.prop1-func-interl.c[1169,1182] [2024-11-01 12:19:50,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 12:19:50,777 INFO L204 MainTranslator]: Completed translation [2024-11-01 12:19:50,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50 WrapperNode [2024-11-01 12:19:50,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 12:19:50,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 12:19:50,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 12:19:50,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 12:19:50,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:50,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,153 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5214 [2024-11-01 12:19:51,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 12:19:51,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 12:19:51,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 12:19:51,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 12:19:51,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,309 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]. [2024-11-01 12:19:51,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 12:19:51,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 12:19:51,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 12:19:51,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 12:19:51,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (1/1) ... [2024-11-01 12:19:51,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 12:19:51,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 12:19:51,628 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) [2024-11-01 12:19:51,643 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 [2024-11-01 12:19:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 12:19:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 12:19:51,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 12:19:51,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 12:19:52,497 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 12:19:52,500 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 12:20:01,080 INFO L? ?]: Removed 226 outVars from TransFormulas that were not future-live. [2024-11-01 12:20:01,081 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 12:20:01,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 12:20:01,100 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 12:20:01,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 12:20:01 BoogieIcfgContainer [2024-11-01 12:20:01,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 12:20:01,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 12:20:01,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 12:20:01,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 12:20:01,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 12:19:49" (1/3) ... [2024-11-01 12:20:01,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779634b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 12:20:01, skipping insertion in model container [2024-11-01 12:20:01,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 12:19:50" (2/3) ... [2024-11-01 12:20:01,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779634b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 12:20:01, skipping insertion in model container [2024-11-01 12:20:01,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 12:20:01" (3/3) ... [2024-11-01 12:20:01,113 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.at.7.prop1-func-interl.c [2024-11-01 12:20:01,134 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 12:20:01,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 12:20:01,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 12:20:01,215 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;@6b7e443a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 12:20:01,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 12:20:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 12:20:01,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 12:20:01,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 12:20:01,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 12:20:01,233 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 12:20:01,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 12:20:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 12:20:01,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 12:20:01,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119117557] [2024-11-01 12:20:01,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 12:20:01,256 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 12:20:01,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 12:20:01,259 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) [2024-11-01 12:20:01,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 12:20:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 12:20:02,552 WARN L253 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 311 conjuncts are in the unsatisfiable core [2024-11-01 12:20:02,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 12:20:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 12:20:06,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 12:20:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 12:20:21,864 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 12:20:21,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119117557] [2024-11-01 12:20:21,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2119117557] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 12:20:21,865 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 12:20:21,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 12:20:21,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594773457] [2024-11-01 12:20:21,868 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 12:20:21,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 12:20:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 12:20:21,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 12:20:21,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 12:20:21,899 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 12:20:26,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-01 12:20:35,340 WARN L286 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-01 12:20:36,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-01 12:20:37,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 12:20:37,184 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2024-11-01 12:20:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 12:20:37,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-01 12:20:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 12:20:37,192 INFO L225 Difference]: With dead ends: 21 [2024-11-01 12:20:37,192 INFO L226 Difference]: Without dead ends: 13 [2024-11-01 12:20:37,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-01 12:20:37,197 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-01 12:20:37,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-01 12:20:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-01 12:20:37,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-01 12:20:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 12:20:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-01 12:20:37,223 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2024-11-01 12:20:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 12:20:37,223 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-01 12:20:37,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 12:20:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-01 12:20:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-01 12:20:37,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 12:20:37,224 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-01 12:20:37,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-01 12:20:37,428 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 [2024-11-01 12:20:37,429 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 12:20:37,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 12:20:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 1 times [2024-11-01 12:20:37,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 12:20:37,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758426902] [2024-11-01 12:20:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 12:20:37,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 12:20:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 12:20:37,434 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) [2024-11-01 12:20:37,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 12:20:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 12:20:40,445 WARN L253 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 731 conjuncts are in the unsatisfiable core [2024-11-01 12:20:40,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 12:21:01,740 WARN L286 SmtUtils]: Spent 7.62s on a formula simplification that was a NOOP. DAG size: 751 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)