/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.vcegar_QF_BV_itc99_b13_p20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 14:09:43,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 14:09:43,338 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 14:09:43,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 14:09:43,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 14:09:43,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 14:09:43,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 14:09:43,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 14:09:43,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 14:09:43,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 14:09:43,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 14:09:43,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 14:09:43,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 14:09:43,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 14:09:43,390 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 14:09:43,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 14:09:43,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 14:09:43,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 14:09:43,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 14:09:43,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 14:09:43,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 14:09:43,394 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 14:09:43,394 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 14:09:43,395 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 14:09:43,395 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 14:09:43,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 14:09:43,395 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 14:09:43,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 14:09:43,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 14:09:43,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 14:09:43,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 14:09:43,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 14:09:43,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 14:09:43,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 14:09:43,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 14:09:43,399 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 14:09:43,399 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 14:09:43,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 14:09:43,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 14:09:43,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 14:09:43,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 14:09:43,401 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 14:09:43,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-01 14:09:43,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 14:09:43,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 14:09:43,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 14:09:43,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 14:09:43,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 14:09:43,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2024-11-01 14:09:45,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 14:09:45,487 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 14:09:45,488 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2024-11-01 14:09:45,504 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f68d726e/068f2059392140ae8112ba023a0b4176/FLAG528a458b2 [2024-11-01 14:09:45,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f68d726e/068f2059392140ae8112ba023a0b4176 [2024-11-01 14:09:45,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 14:09:45,522 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 14:09:45,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 14:09:45,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 14:09:45,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 14:09:45,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9c13bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45, skipping insertion in model container [2024-11-01 14:09:45,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,569 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 14:09:45,745 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.vcegar_QF_BV_itc99_b13_p20.c[1266,1279] [2024-11-01 14:09:45,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 14:09:45,820 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 14:09:45,832 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.vcegar_QF_BV_itc99_b13_p20.c[1266,1279] [2024-11-01 14:09:45,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 14:09:45,908 INFO L204 MainTranslator]: Completed translation [2024-11-01 14:09:45,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45 WrapperNode [2024-11-01 14:09:45,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 14:09:45,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 14:09:45,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 14:09:45,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 14:09:45,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,958 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 237 [2024-11-01 14:09:45,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 14:09:45,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 14:09:45,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 14:09:45,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 14:09:45,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,977 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,991 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 14:09:45,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:45,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:46,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:46,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:46,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:46,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:46,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 14:09:46,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 14:09:46,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 14:09:46,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 14:09:46,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (1/1) ... [2024-11-01 14:09:46,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 14:09:46,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 14:09:46,046 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 14:09:46,049 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 14:09:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 14:09:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 14:09:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 14:09:46,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 14:09:46,166 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 14:09:46,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 14:09:46,470 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-01 14:09:46,470 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 14:09:46,484 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 14:09:46,485 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 14:09:46,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 02:09:46 BoogieIcfgContainer [2024-11-01 14:09:46,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 14:09:46,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 14:09:46,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 14:09:46,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 14:09:46,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 02:09:45" (1/3) ... [2024-11-01 14:09:46,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ac51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 02:09:46, skipping insertion in model container [2024-11-01 14:09:46,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 02:09:45" (2/3) ... [2024-11-01 14:09:46,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ac51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 02:09:46, skipping insertion in model container [2024-11-01 14:09:46,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 02:09:46" (3/3) ... [2024-11-01 14:09:46,498 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p20.c [2024-11-01 14:09:46,516 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 14:09:46,517 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 14:09:46,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 14:09:46,587 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;@2828e78d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 14:09:46,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 14:09:46,592 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 14:09:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 14:09:46,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 14:09:46,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 14:09:46,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 14:09:46,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 14:09:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 14:09:46,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 14:09:46,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115357783] [2024-11-01 14:09:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 14:09:46,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 14:09:46,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 14:09:46,623 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 14:09:46,626 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 14:09:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 14:09:46,790 WARN L253 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-01 14:09:46,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 14:09:47,308 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 14:09:47,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 14:09:47,578 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 14:09:47,579 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 14:09:47,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115357783] [2024-11-01 14:09:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1115357783] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 14:09:47,580 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 14:09:47,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 14:09:47,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550764812] [2024-11-01 14:09:47,585 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 14:09:47,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 14:09:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 14:09:47,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 14:09:47,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 14:09:47,617 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 14:09:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 14:09:47,677 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 14:09:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 14:09:47,680 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 14:09:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 14:09:47,687 INFO L225 Difference]: With dead ends: 18 [2024-11-01 14:09:47,687 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 14:09:47,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 14:09:47,695 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 14:09:47,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 14:09:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 14:09:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 14:09:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 14:09:47,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 14:09:47,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 14:09:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 14:09:47,727 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 14:09:47,727 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 14:09:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 14:09:47,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 14:09:47,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 14:09:47,728 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 14:09:47,732 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 14:09:47,931 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 14:09:47,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 14:09:47,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 14:09:47,932 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 14:09:47,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 14:09:47,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [75185657] [2024-11-01 14:09:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 14:09:47,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 14:09:47,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 14:09:47,935 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 14:09:47,937 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 14:09:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 14:09:48,079 WARN L253 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-01 14:09:48,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 14:09:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 14:09:48,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 14:09:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 14:09:49,837 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 14:09:49,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [75185657] [2024-11-01 14:09:49,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [75185657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 14:09:49,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 14:09:49,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-01 14:09:49,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521607146] [2024-11-01 14:09:49,838 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 14:09:49,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 14:09:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 14:09:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 14:09:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-01 14:09:49,840 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 14:09:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 14:09:50,005 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-01 14:09:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-01 14:09:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 8 [2024-11-01 14:09:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 14:09:50,007 INFO L225 Difference]: With dead ends: 18 [2024-11-01 14:09:50,007 INFO L226 Difference]: Without dead ends: 16 [2024-11-01 14:09:50,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-01 14:09:50,008 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 14:09:50,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 14:09:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-01 14:09:50,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-01 14:09:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 14:09:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-01 14:09:50,013 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-01 14:09:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 14:09:50,014 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-01 14:09:50,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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 14:09:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-01 14:09:50,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-01 14:09:50,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 14:09:50,015 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-01 14:09:50,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-01 14:09:50,217 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 [2024-11-01 14:09:50,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 14:09:50,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 14:09:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-01 14:09:50,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 14:09:50,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176374680] [2024-11-01 14:09:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 14:09:50,219 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-01 14:09:50,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-01 14:09:50,222 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) [2024-11-01 14:09:50,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-01 14:09:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 14:09:50,415 WARN L253 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 129 conjuncts are in the unsatisfiable core [2024-11-01 14:09:50,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 14:09:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 14:09:51,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 14:09:59,813 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 14:09:59,813 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 14:09:59,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176374680] [2024-11-01 14:09:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1176374680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 14:09:59,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 14:09:59,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 14:09:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199738523] [2024-11-01 14:09:59,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 14:09:59,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 14:09:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 14:09:59,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 14:09:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-01 14:09:59,817 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 14:09:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 14:09:59,901 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-01 14:09:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 14:09:59,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 14 [2024-11-01 14:09:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 14:09:59,903 INFO L225 Difference]: With dead ends: 18 [2024-11-01 14:09:59,903 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 14:09:59,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-01 14:09:59,905 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 14:09:59,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 14:09:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 14:09:59,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 14:09:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 14:09:59,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 14:09:59,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-01 14:09:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 14:09:59,907 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 14:09:59,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 14:09:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 14:09:59,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 14:09:59,910 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 14:09:59,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-01 14:10:00,111 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 [2024-11-01 14:10:00,115 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-01 14:10:00,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 14:10:00,159 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 14:10:00,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 02:10:00 BoogieIcfgContainer [2024-11-01 14:10:00,172 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 14:10:00,173 INFO L158 Benchmark]: Toolchain (without parser) took 14651.28ms. Allocated memory was 190.8MB in the beginning and 690.0MB in the end (delta: 499.1MB). Free memory was 145.5MB in the beginning and 285.2MB in the end (delta: -139.7MB). Peak memory consumption was 360.5MB. Max. memory is 8.0GB. [2024-11-01 14:10:00,173 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 190.8MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 14:10:00,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.00ms. Allocated memory is still 190.8MB. Free memory was 145.0MB in the beginning and 128.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-01 14:10:00,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.36ms. Allocated memory is still 190.8MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-01 14:10:00,174 INFO L158 Benchmark]: Boogie Preprocessor took 52.62ms. Allocated memory is still 190.8MB. Free memory was 126.1MB in the beginning and 123.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-01 14:10:00,174 INFO L158 Benchmark]: RCFGBuilder took 472.61ms. Allocated memory is still 190.8MB. Free memory was 123.5MB in the beginning and 103.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2024-11-01 14:10:00,175 INFO L158 Benchmark]: TraceAbstraction took 13682.34ms. Allocated memory was 190.8MB in the beginning and 690.0MB in the end (delta: 499.1MB). Free memory was 103.1MB in the beginning and 285.2MB in the end (delta: -182.1MB). Peak memory consumption was 318.5MB. Max. memory is 8.0GB. [2024-11-01 14:10:00,176 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 190.8MB. Free memory is still 166.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 386.00ms. Allocated memory is still 190.8MB. Free memory was 145.0MB in the beginning and 128.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.36ms. Allocated memory is still 190.8MB. Free memory was 128.7MB in the beginning and 126.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.62ms. Allocated memory is still 190.8MB. Free memory was 126.1MB in the beginning and 123.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 472.61ms. Allocated memory is still 190.8MB. Free memory was 123.5MB in the beginning and 103.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 13682.34ms. Allocated memory was 190.8MB in the beginning and 690.0MB in the end (delta: 499.1MB). Free memory was 103.1MB in the beginning and 285.2MB in the end (delta: -182.1MB). Peak memory consumption was 318.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 12 QuantifiedInterpolants, 8067 SizeOfPredicates, 37 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 247 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 6/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((((((((((1 == var_22) && (0 == state_60)) && (0 == var_7)) && (0 == state_28)) && (0 == state_8)) && (1 == var_12)) && (0 == state_15)) && (1 == mask_SORT_1)) && (1 == state_26)) || (((((((((1 == var_22) && (0 == state_60)) && (0 == var_7)) && (0 == state_28)) && (0 == state_8)) && (1 == var_12)) && (0 == state_15)) && (1 == mask_SORT_1)) && (0 == state_26))) RESULT: Ultimate proved your program to be correct! [2024-11-01 14:10:00,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...