/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.cav14_example.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 08:47:56,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 08:47:56,637 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 08:47:56,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 08:47:56,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 08:47:56,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 08:47:56,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 08:47:56,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 08:47:56,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 08:47:56,671 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 08:47:56,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 08:47:56,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 08:47:56,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 08:47:56,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 08:47:56,673 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 08:47:56,674 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 08:47:56,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 08:47:56,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 08:47:56,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 08:47:56,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 08:47:56,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 08:47:56,678 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 08:47:56,678 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 08:47:56,678 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 08:47:56,678 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 08:47:56,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 08:47:56,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 08:47:56,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 08:47:56,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 08:47:56,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 08:47:56,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 08:47:56,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 08:47:56,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 08:47:56,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 08:47:56,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 08:47:56,681 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 08:47:56,681 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 08:47:56,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 08:47:56,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 08:47:56,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 08:47:56,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 08:47:56,682 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 08:47:56,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-01 08:47:56,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 08:47:56,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 08:47:56,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 08:47:56,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 08:47:56,955 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 08:47:56,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2024-11-01 08:47:58,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 08:47:58,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 08:47:58,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2024-11-01 08:47:58,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d159b9d6/04d2cf8858004dc8b0d5cd2e7a505106/FLAG073623d4f [2024-11-01 08:47:58,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d159b9d6/04d2cf8858004dc8b0d5cd2e7a505106 [2024-11-01 08:47:58,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 08:47:58,382 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 08:47:58,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 08:47:58,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 08:47:58,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 08:47:58,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b19f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58, skipping insertion in model container [2024-11-01 08:47:58,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 08:47:58,527 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.cav14_example.c[1253,1266] [2024-11-01 08:47:58,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 08:47:58,572 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 08:47:58,594 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.cav14_example.c[1253,1266] [2024-11-01 08:47:58,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 08:47:58,620 INFO L204 MainTranslator]: Completed translation [2024-11-01 08:47:58,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58 WrapperNode [2024-11-01 08:47:58,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 08:47:58,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 08:47:58,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 08:47:58,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 08:47:58,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,650 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2024-11-01 08:47:58,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 08:47:58,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 08:47:58,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 08:47:58,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 08:47:58,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,678 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 08:47:58,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 08:47:58,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 08:47:58,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 08:47:58,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 08:47:58,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (1/1) ... [2024-11-01 08:47:58,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 08:47:58,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 08:47:58,722 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 08:47:58,728 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 08:47:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 08:47:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 08:47:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 08:47:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 08:47:58,826 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 08:47:58,827 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 08:47:58,981 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-01 08:47:58,981 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 08:47:58,990 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 08:47:58,991 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 08:47:58,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 08:47:58 BoogieIcfgContainer [2024-11-01 08:47:58,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 08:47:58,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 08:47:58,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 08:47:58,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 08:47:58,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 08:47:58" (1/3) ... [2024-11-01 08:47:58,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2c902a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 08:47:58, skipping insertion in model container [2024-11-01 08:47:58,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:47:58" (2/3) ... [2024-11-01 08:47:58,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2c902a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 08:47:58, skipping insertion in model container [2024-11-01 08:47:58,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 08:47:58" (3/3) ... [2024-11-01 08:47:58,998 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cav14_example.c [2024-11-01 08:47:59,009 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 08:47:59,010 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 08:47:59,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 08:47:59,056 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;@767d59b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 08:47:59,056 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 08:47:59,060 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 08:47:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 08:47:59,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 08:47:59,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 08:47:59,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 08:47:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 08:47:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 08:47:59,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 08:47:59,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254320041] [2024-11-01 08:47:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 08:47:59,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 08:47:59,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 08:47:59,087 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) [2024-11-01 08:47:59,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 08:47:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 08:47:59,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-01 08:47:59,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 08:47:59,351 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 08:47:59,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 08:47:59,441 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 08:47:59,442 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 08:47:59,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254320041] [2024-11-01 08:47:59,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1254320041] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 08:47:59,443 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 08:47:59,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 08:47:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466394342] [2024-11-01 08:47:59,445 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 08:47:59,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 08:47:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 08:47:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 08:47:59,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 08:47:59,470 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 08:47:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 08:47:59,503 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 08:47:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 08:47:59,506 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 08:47:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 08:47:59,510 INFO L225 Difference]: With dead ends: 18 [2024-11-01 08:47:59,510 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 08:47:59,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 08:47:59,514 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 08:47:59,515 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 08:47:59,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 08:47:59,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 08:47:59,543 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 08:47:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 08:47:59,545 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 08:47:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 08:47:59,545 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 08:47:59,546 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 08:47:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 08:47:59,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 08:47:59,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 08:47:59,546 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 08:47:59,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-01 08:47:59,747 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 [2024-11-01 08:47:59,747 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 08:47:59,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 08:47:59,748 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 08:47:59,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 08:47:59,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73782161] [2024-11-01 08:47:59,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 08:47:59,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 08:47:59,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 08:47:59,750 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) [2024-11-01 08:47:59,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 08:47:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 08:47:59,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-01 08:47:59,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 08:48:00,004 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 08:48:00,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 08:48:01,096 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 08:48:01,097 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 08:48:01,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73782161] [2024-11-01 08:48:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [73782161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 08:48:01,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 08:48:01,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-01 08:48:01,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795267063] [2024-11-01 08:48:01,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 08:48:01,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 08:48:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 08:48:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 08:48:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-01 08:48:01,099 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 08:48:01,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 08:48:01,267 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2024-11-01 08:48:01,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 08:48:01,268 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 08:48:01,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 08:48:01,268 INFO L225 Difference]: With dead ends: 21 [2024-11-01 08:48:01,268 INFO L226 Difference]: Without dead ends: 19 [2024-11-01 08:48:01,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2024-11-01 08:48:01,270 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 08:48:01,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 08:48:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-01 08:48:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-11-01 08:48:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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 08:48:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-01 08:48:01,273 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2024-11-01 08:48:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 08:48:01,274 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-01 08:48:01,274 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 08:48:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-01 08:48:01,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-01 08:48:01,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 08:48:01,274 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2024-11-01 08:48:01,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-01 08:48:01,475 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 [2024-11-01 08:48:01,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 08:48:01,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 08:48:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash -37306491, now seen corresponding path program 2 times [2024-11-01 08:48:01,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 08:48:01,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871341824] [2024-11-01 08:48:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 08:48:01,477 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 08:48:01,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 08:48:01,479 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) [2024-11-01 08:48:01,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-01 08:48:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 08:48:01,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-01 08:48:01,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 08:48:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 08:48:01,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 08:48:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 08:48:08,988 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 08:48:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871341824] [2024-11-01 08:48:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [871341824] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 08:48:08,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 08:48:08,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-01 08:48:08,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486265757] [2024-11-01 08:48:08,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 08:48:08,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-01 08:48:08,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 08:48:08,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-01 08:48:08,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-01 08:48:08,991 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 08:48:10,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 08:48:10,252 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-01 08:48:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-01 08:48:10,253 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 17 [2024-11-01 08:48:10,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 08:48:10,253 INFO L225 Difference]: With dead ends: 39 [2024-11-01 08:48:10,254 INFO L226 Difference]: Without dead ends: 37 [2024-11-01 08:48:10,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=255, Invalid=501, Unknown=0, NotChecked=0, Total=756 [2024-11-01 08:48:10,255 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 08:48:10,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 23 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 08:48:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-01 08:48:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-01 08:48:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 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 08:48:10,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2024-11-01 08:48:10,262 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2024-11-01 08:48:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 08:48:10,262 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2024-11-01 08:48:10,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 08:48:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2024-11-01 08:48:10,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-01 08:48:10,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 08:48:10,263 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2024-11-01 08:48:10,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-01 08:48:10,465 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 [2024-11-01 08:48:10,466 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 08:48:10,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 08:48:10,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1864061253, now seen corresponding path program 3 times [2024-11-01 08:48:10,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 08:48:10,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505206054] [2024-11-01 08:48:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 08:48:10,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 08:48:10,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 08:48:10,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 08:48:10,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-01 08:48:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 08:48:10,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-01 08:48:10,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 08:48:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-01 08:48:11,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 08:49:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 08:49:19,472 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 08:49:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505206054] [2024-11-01 08:49:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1505206054] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 08:49:19,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 08:49:19,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 24 [2024-11-01 08:49:19,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826909963] [2024-11-01 08:49:19,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 08:49:19,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-01 08:49:19,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 08:49:19,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-01 08:49:19,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2024-11-01 08:49:19,477 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 08:49:19,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 08:49:19,753 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2024-11-01 08:49:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-01 08:49:19,754 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 35 [2024-11-01 08:49:19,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 08:49:19,755 INFO L225 Difference]: With dead ends: 57 [2024-11-01 08:49:19,755 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 08:49:19,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=320, Invalid=672, Unknown=0, NotChecked=0, Total=992 [2024-11-01 08:49:19,756 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 08:49:19,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 08:49:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 08:49:19,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 08:49:19,757 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 08:49:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 08:49:19,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2024-11-01 08:49:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 08:49:19,757 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 08:49:19,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 08:49:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 08:49:19,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 08:49:19,762 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 08:49:19,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-01 08:49:19,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 08:49:19,966 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-01 08:49:19,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 08:49:20,050 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 08:49:20,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 08:49:20 BoogieIcfgContainer [2024-11-01 08:49:20,061 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 08:49:20,061 INFO L158 Benchmark]: Toolchain (without parser) took 81678.67ms. Allocated memory was 200.3MB in the beginning and 1.0GB in the end (delta: 810.5MB). Free memory was 156.1MB in the beginning and 922.3MB in the end (delta: -766.2MB). Peak memory consumption was 45.3MB. Max. memory is 8.0GB. [2024-11-01 08:49:20,061 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory was 176.7MB in the beginning and 176.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 08:49:20,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.23ms. Allocated memory is still 200.3MB. Free memory was 155.7MB in the beginning and 175.6MB in the end (delta: -19.9MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. [2024-11-01 08:49:20,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.84ms. Allocated memory is still 200.3MB. Free memory was 175.6MB in the beginning and 174.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-01 08:49:20,062 INFO L158 Benchmark]: Boogie Preprocessor took 44.45ms. Allocated memory is still 200.3MB. Free memory was 174.1MB in the beginning and 171.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-01 08:49:20,062 INFO L158 Benchmark]: RCFGBuilder took 295.01ms. Allocated memory is still 200.3MB. Free memory was 171.4MB in the beginning and 155.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-01 08:49:20,062 INFO L158 Benchmark]: TraceAbstraction took 81066.90ms. Allocated memory was 200.3MB in the beginning and 1.0GB in the end (delta: 810.5MB). Free memory was 154.7MB in the beginning and 922.3MB in the end (delta: -767.6MB). Peak memory consumption was 42.9MB. Max. memory is 8.0GB. [2024-11-01 08:49:20,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 200.3MB. Free memory was 176.7MB in the beginning and 176.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 237.23ms. Allocated memory is still 200.3MB. Free memory was 155.7MB in the beginning and 175.6MB in the end (delta: -19.9MB). Peak memory consumption was 17.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.84ms. Allocated memory is still 200.3MB. Free memory was 175.6MB in the beginning and 174.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.45ms. Allocated memory is still 200.3MB. Free memory was 174.1MB in the beginning and 171.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 295.01ms. Allocated memory is still 200.3MB. Free memory was 171.4MB in the beginning and 155.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 81066.90ms. Allocated memory was 200.3MB in the beginning and 1.0GB in the end (delta: 810.5MB). Free memory was 154.7MB in the beginning and 922.3MB in the end (delta: -767.6MB). Peak memory consumption was 42.9MB. 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: 80.9s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 14 mSDtfsCounter, 393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=3, InterpolantAutomatonStates: 54, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 77.7s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 49 QuantifiedInterpolants, 148389 SizeOfPredicates, 20 NumberOfNonLiveVariables, 396 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 6/366 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: 46]: Loop Invariant Derived loop invariant: (((((((((((((7 == var_19) && (7 == mask_SORT_3)) && (1 == var_23)) && (1 == state_7)) && (1 == mask_SORT_1)) && (1 == state_5)) || ((((((4 == state_5) && (7 == var_19)) && (7 == mask_SORT_3)) && (1 == var_23)) && (4 == state_7)) && (1 == mask_SORT_1))) || ((((((0 == state_7) && (7 == var_19)) && (7 == mask_SORT_3)) && (0 == state_5)) && (1 == var_23)) && (1 == mask_SORT_1))) || ((((((7 == var_19) && (7 == mask_SORT_3)) && (6 == state_5)) && (1 == var_23)) && (1 == mask_SORT_1)) && (6 == state_7))) || ((((((7 == var_19) && (3 == state_7)) && (7 == mask_SORT_3)) && (1 == var_23)) && (1 == mask_SORT_1)) && (3 == state_5))) || ((((((7 == state_5) && (7 == var_19)) && (7 == mask_SORT_3)) && (1 == var_23)) && (7 == state_7)) && (1 == mask_SORT_1))) || ((((((7 == var_19) && (7 == mask_SORT_3)) && (5 == state_7)) && (1 == var_23)) && (5 == state_5)) && (1 == mask_SORT_1))) || ((((((7 == var_19) && (7 == mask_SORT_3)) && (2 == state_5)) && (1 == var_23)) && (2 == state_7)) && (1 == mask_SORT_1))) RESULT: Ultimate proved your program to be correct! [2024-11-01 08:49:20,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...