/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 'cvc4 --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.h_b08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 22:05:01,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 22:05:01,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 22:05:01,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 22:05:01,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 22:05:01,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 22:05:01,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 22:05:01,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 22:05:01,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 22:05:01,723 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 22:05:01,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 22:05:01,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 22:05:01,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 22:05:01,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 22:05:01,724 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 22:05:01,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 22:05:01,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 22:05:01,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 22:05:01,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 22:05:01,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 22:05:01,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 22:05:01,732 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 22:05:01,732 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 22:05:01,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 22:05:01,732 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 22:05:01,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 22:05:01,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 22:05:01,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 22:05:01,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 22:05:01,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 22:05:01,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 22:05:01,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 22:05:01,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 22:05:01,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 22:05:01,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 22:05:01,735 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 22:05:01,735 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:01,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 22:05:01,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 22:05:01,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 22:05:01,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 22:05:01,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:01,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 22:05:02,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 22:05:02,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 22:05:02,006 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 22:05:02,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 22:05:02,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2024-11-04 22:05:03,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 22:05:03,721 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 22:05:03,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2024-11-04 22:05:03,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e285cbcc/7f7c58fc100f4d3e98fe51840735fc45/FLAG353460d2f [2024-11-04 22:05:03,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e285cbcc/7f7c58fc100f4d3e98fe51840735fc45 [2024-11-04 22:05:03,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 22:05:03,750 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 22:05:03,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 22:05:03,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 22:05:03,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 22:05:03,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:05:03" (1/1) ... [2024-11-04 22:05:03,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724beecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:03, skipping insertion in model container [2024-11-04 22:05:03,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:05:03" (1/1) ... [2024-11-04 22:05:03,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 22:05:03,971 WARN L250 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.h_b08.c[1245,1258] [2024-11-04 22:05:04,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 22:05:04,056 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 22:05:04,072 WARN L250 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.h_b08.c[1245,1258] [2024-11-04 22:05:04,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 22:05:04,149 INFO L204 MainTranslator]: Completed translation [2024-11-04 22:05:04,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04 WrapperNode [2024-11-04 22:05:04,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 22:05:04,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 22:05:04,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 22:05:04,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 22:05:04,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,203 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 374 [2024-11-04 22:05:04,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 22:05:04,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 22:05:04,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 22:05:04,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 22:05:04,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,225 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,246 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-04 22:05:04,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 22:05:04,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 22:05:04,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 22:05:04,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 22:05:04,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (1/1) ... [2024-11-04 22:05:04,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 22:05:04,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 22:05:04,308 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) [2024-11-04 22:05:04,314 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 [2024-11-04 22:05:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 22:05:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 22:05:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 22:05:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 22:05:04,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 22:05:04,474 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 22:05:04,475 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 22:05:04,828 INFO L? ?]: Removed 199 outVars from TransFormulas that were not future-live. [2024-11-04 22:05:04,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 22:05:04,840 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 22:05:04,840 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-04 22:05:04,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:05:04 BoogieIcfgContainer [2024-11-04 22:05:04,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 22:05:04,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 22:05:04,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 22:05:04,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 22:05:04,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:05:03" (1/3) ... [2024-11-04 22:05:04,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53502674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:05:04, skipping insertion in model container [2024-11-04 22:05:04,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:05:04" (2/3) ... [2024-11-04 22:05:04,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53502674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:05:04, skipping insertion in model container [2024-11-04 22:05:04,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:05:04" (3/3) ... [2024-11-04 22:05:04,851 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b08.c [2024-11-04 22:05:04,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 22:05:04,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 22:05:04,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 22:05:04,916 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;@1be27f6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 22:05:04,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 22:05:04,920 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) [2024-11-04 22:05:04,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-04 22:05:04,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 22:05:04,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-04 22:05:04,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 22:05:04,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 22:05:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-04 22:05:04,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 22:05:04,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871978937] [2024-11-04 22:05:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 22:05:04,943 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 22:05:04,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 22:05:04,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-04 22:05:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 22:05:05,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-04 22:05:05,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 22:05:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 22:05:05,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 22:05:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 22:05:06,093 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 22:05:06,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871978937] [2024-11-04 22:05:06,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [871978937] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 22:05:06,094 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 22:05:06,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-04 22:05:06,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163964601] [2024-11-04 22:05:06,096 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 22:05:06,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-04 22:05:06,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 22:05:06,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-04 22:05:06,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 22:05:06,126 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) [2024-11-04 22:05:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 22:05:06,239 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-04 22:05:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-04 22:05:06,243 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 [2024-11-04 22:05:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 22:05:06,250 INFO L225 Difference]: With dead ends: 18 [2024-11-04 22:05:06,250 INFO L226 Difference]: Without dead ends: 10 [2024-11-04 22:05:06,253 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 [2024-11-04 22:05:06,258 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-04 22:05:06,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-04 22:05:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-04 22:05:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-04 22:05:06,286 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) [2024-11-04 22:05:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-04 22:05:06,288 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-04 22:05:06,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 22:05:06,289 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-04 22:05:06,289 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) [2024-11-04 22:05:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-04 22:05:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-04 22:05:06,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 22:05:06,290 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-04 22:05:06,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-04 22:05:06,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:06,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 22:05:06,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 22:05:06,496 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-04 22:05:06,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 22:05:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472549154] [2024-11-04 22:05:06,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 22:05:06,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:06,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 22:05:06,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 22:05:06,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-04 22:05:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 22:05:07,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-04 22:05:07,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 22:05:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 22:05:07,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 22:05:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-04 22:05:08,061 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 22:05:08,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472549154] [2024-11-04 22:05:08,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [472549154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-04 22:05:08,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-04 22:05:08,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-04 22:05:08,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544124368] [2024-11-04 22:05:08,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-04 22:05:08,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-04 22:05:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 22:05:08,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-04 22:05:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-04 22:05:08,084 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) [2024-11-04 22:05:08,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 22:05:08,519 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-04 22:05:08,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-04 22:05:08,520 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 [2024-11-04 22:05:08,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 22:05:08,522 INFO L225 Difference]: With dead ends: 18 [2024-11-04 22:05:08,522 INFO L226 Difference]: Without dead ends: 16 [2024-11-04 22:05:08,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-04 22:05:08,524 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-04 22:05:08,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-04 22:05:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-04 22:05:08,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-04 22:05:08,532 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) [2024-11-04 22:05:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-04 22:05:08,533 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-04 22:05:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 22:05:08,533 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-04 22:05:08,534 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) [2024-11-04 22:05:08,534 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-04 22:05:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-04 22:05:08,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 22:05:08,535 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-04 22:05:08,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-04 22:05:08,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:08,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 22:05:08,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 22:05:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-04 22:05:08,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 22:05:08,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363657455] [2024-11-04 22:05:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 22:05:08,739 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:08,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 22:05:08,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 22:05:08,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-04 22:05:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 22:05:09,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-04 22:05:09,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 22:05:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-04 22:05:13,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 22:05:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-04 22:05:17,069 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 22:05:17,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363657455] [2024-11-04 22:05:17,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [363657455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-04 22:05:17,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-04 22:05:17,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-04 22:05:17,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423713069] [2024-11-04 22:05:17,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-04 22:05:17,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-04 22:05:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 22:05:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-04 22:05:17,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 22:05:17,072 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2024-11-04 22:05:17,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 22:05:17,141 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-04 22:05:17,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-04 22:05:17,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 14 [2024-11-04 22:05:17,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 22:05:17,142 INFO L225 Difference]: With dead ends: 15 [2024-11-04 22:05:17,142 INFO L226 Difference]: Without dead ends: 0 [2024-11-04 22:05:17,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-04 22:05:17,144 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-04 22:05:17,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 22:05:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-04 22:05:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-04 22:05:17,145 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) [2024-11-04 22:05:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-04 22:05:17,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-04 22:05:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 22:05:17,146 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-04 22:05:17,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2024-11-04 22:05:17,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-04 22:05:17,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-04 22:05:17,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-04 22:05:17,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-04 22:05:17,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 22:05:17,353 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-04 22:05:17,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-04 22:05:17,448 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-04 22:05:17,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.11 10:05:17 BoogieIcfgContainer [2024-11-04 22:05:17,468 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-04 22:05:17,469 INFO L158 Benchmark]: Toolchain (without parser) took 13718.25ms. Allocated memory was 375.4MB in the beginning and 691.0MB in the end (delta: 315.6MB). Free memory was 312.0MB in the beginning and 463.9MB in the end (delta: -151.9MB). Peak memory consumption was 164.7MB. Max. memory is 8.0GB. [2024-11-04 22:05:17,469 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 219.2MB. Free memory is still 167.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-04 22:05:17,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.08ms. Allocated memory is still 375.4MB. Free memory was 312.0MB in the beginning and 292.0MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2024-11-04 22:05:17,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.08ms. Allocated memory is still 375.4MB. Free memory was 292.0MB in the beginning and 288.8MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-04 22:05:17,470 INFO L158 Benchmark]: Boogie Preprocessor took 71.57ms. Allocated memory is still 375.4MB. Free memory was 288.8MB in the beginning and 285.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-04 22:05:17,470 INFO L158 Benchmark]: RCFGBuilder took 564.21ms. Allocated memory is still 375.4MB. Free memory was 284.7MB in the beginning and 248.5MB in the end (delta: 36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2024-11-04 22:05:17,471 INFO L158 Benchmark]: TraceAbstraction took 12623.38ms. Allocated memory was 375.4MB in the beginning and 691.0MB in the end (delta: 315.6MB). Free memory was 248.0MB in the beginning and 463.9MB in the end (delta: -215.9MB). Peak memory consumption was 100.7MB. Max. memory is 8.0GB. [2024-11-04 22:05:17,472 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 219.2MB. Free memory is still 167.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 398.08ms. Allocated memory is still 375.4MB. Free memory was 312.0MB in the beginning and 292.0MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.08ms. Allocated memory is still 375.4MB. Free memory was 292.0MB in the beginning and 288.8MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.57ms. Allocated memory is still 375.4MB. Free memory was 288.8MB in the beginning and 285.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 564.21ms. Allocated memory is still 375.4MB. Free memory was 284.7MB in the beginning and 248.5MB in the end (delta: 36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 12623.38ms. Allocated memory was 375.4MB in the beginning and 691.0MB in the end (delta: 315.6MB). Free memory was 248.0MB in the beginning and 463.9MB in the end (delta: -215.9MB). Peak memory consumption was 100.7MB. 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: 12.5s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 16, 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: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 15 QuantifiedInterpolants, 5363 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1321 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 24/34 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: 99]: Loop Invariant Derived loop invariant: (((((((((((1046202 == var_70) && (196596 == var_7)) && (522618 == var_88)) && (1047464 == var_48)) && (0 == var_45)) && (692223 == var_78)) && (15 == mask_SORT_90)) && (1048430 == var_60)) && (1 == mask_SORT_1)) && (829275 == var_8)) && (236898 == var_84)) RESULT: Ultimate proved your program to be correct! [2024-11-04 22:05:17,503 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...