/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 bitwuzla -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 21:21:06,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 21:21:06,496 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 21:21:06,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 21:21:06,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 21:21:06,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 21:21:06,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 21:21:06,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 21:21:06,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 21:21:06,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 21:21:06,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 21:21:06,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 21:21:06,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 21:21:06,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 21:21:06,554 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 21:21:06,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 21:21:06,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 21:21:06,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 21:21:06,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 21:21:06,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 21:21:06,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 21:21:06,561 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 21:21:06,561 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 21:21:06,561 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 21:21:06,562 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 21:21:06,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 21:21:06,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 21:21:06,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 21:21:06,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 21:21:06,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 21:21:06,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 21:21:06,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 21:21:06,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 21:21:06,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 21:21:06,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 21:21:06,565 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 21:21:06,565 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 21:21:06,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 21:21:06,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 21:21:06,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 21:21:06,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 21:21:06,566 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 21:21:06,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 21:21:06,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 21:21:06,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 21:21:06,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 21:21:06,880 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 21:21:06,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 21:21:06,882 INFO L431 ainManager$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 21:21:08,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 21:21:08,612 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 21:21:08,612 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2024-11-01 21:21:08,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa54f3d9/ff6f908b30a745a5b18b8bef291ec550/FLAG88c7f267e [2024-11-01 21:21:08,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa54f3d9/ff6f908b30a745a5b18b8bef291ec550 [2024-11-01 21:21:08,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 21:21:08,635 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 21:21:08,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 21:21:08,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 21:21:08,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 21:21:08,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:08,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b1588c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08, skipping insertion in model container [2024-11-01 21:21:08,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:08,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 21:21:08,833 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 21:21:08,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 21:21:08,906 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 21:21:08,918 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 21:21:08,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 21:21:08,970 INFO L204 MainTranslator]: Completed translation [2024-11-01 21:21:08,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08 WrapperNode [2024-11-01 21:21:08,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 21:21:08,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 21:21:08,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 21:21:08,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 21:21:08,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:08,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,015 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2024-11-01 21:21:09,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 21:21:09,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 21:21:09,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 21:21:09,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 21:21:09,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,055 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 21:21:09,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 21:21:09,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 21:21:09,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 21:21:09,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 21:21:09,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (1/1) ... [2024-11-01 21:21:09,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 21:21:09,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 21:21:09,113 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 21:21:09,116 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 21:21:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 21:21:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 21:21:09,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 21:21:09,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 21:21:09,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 21:21:09,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 21:21:09,455 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-01 21:21:09,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 21:21:09,466 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 21:21:09,466 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 21:21:09,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:21:09 BoogieIcfgContainer [2024-11-01 21:21:09,467 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 21:21:09,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 21:21:09,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 21:21:09,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 21:21:09,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 09:21:08" (1/3) ... [2024-11-01 21:21:09,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24aa819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:21:09, skipping insertion in model container [2024-11-01 21:21:09,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:21:08" (2/3) ... [2024-11-01 21:21:09,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24aa819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:21:09, skipping insertion in model container [2024-11-01 21:21:09,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:21:09" (3/3) ... [2024-11-01 21:21:09,477 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cav14_example.c [2024-11-01 21:21:09,493 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 21:21:09,494 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 21:21:09,544 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 21:21:09,550 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;@439a7e9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 21:21:09,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 21:21:09,554 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 21:21:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 21:21:09,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:21:09,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 21:21:09,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:21:09,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:21:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 21:21:09,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:21:09,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973920251] [2024-11-01 21:21:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:21:09,576 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:21:09,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:21:09,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 21:21:09,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 21:21:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:21:09,668 WARN L253 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-01 21:21:09,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:21:09,932 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 21:21:09,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:21:10,052 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 21:21:10,053 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:21:10,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973920251] [2024-11-01 21:21:10,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [973920251] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 21:21:10,054 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 21:21:10,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 21:21:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502537651] [2024-11-01 21:21:10,058 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 21:21:10,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 21:21:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:21:10,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 21:21:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 21:21:10,086 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 21:21:10,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:21:10,172 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2024-11-01 21:21:10,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 21:21:10,174 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 21:21:10,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:21:10,181 INFO L225 Difference]: With dead ends: 21 [2024-11-01 21:21:10,181 INFO L226 Difference]: Without dead ends: 13 [2024-11-01 21:21:10,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-01 21:21:10,189 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 21:21:10,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 21:21:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-01 21:21:10,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-01 21:21:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 21:21:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-01 21:21:10,218 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2024-11-01 21:21:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:21:10,219 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-01 21:21:10,219 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 21:21:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-01 21:21:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-01 21:21:10,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:21:10,221 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-01 21:21:10,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 21:21:10,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:21:10,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:21:10,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:21:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 1 times [2024-11-01 21:21:10,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:21:10,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709167794] [2024-11-01 21:21:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:21:10,424 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:21:10,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:21:10,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 21:21:10,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 21:21:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:21:10,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-01 21:21:10,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:21:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:21:10,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:21:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:21:13,714 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:21:13,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709167794] [2024-11-01 21:21:13,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1709167794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 21:21:13,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 21:21:13,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 21:21:13,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457771400] [2024-11-01 21:21:13,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 21:21:13,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 21:21:13,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:21:13,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 21:21:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-01 21:21:13,718 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 21:21:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:21:14,265 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2024-11-01 21:21:14,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-01 21:21:14,267 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2024-11-01 21:21:14,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:21:14,267 INFO L225 Difference]: With dead ends: 27 [2024-11-01 21:21:14,267 INFO L226 Difference]: Without dead ends: 25 [2024-11-01 21:21:14,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2024-11-01 21:21:14,269 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 21:21:14,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 21:21:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-01 21:21:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-11-01 21:21:14,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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 21:21:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-11-01 21:21:14,279 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2024-11-01 21:21:14,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:21:14,279 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-11-01 21:21:14,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 21:21:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-11-01 21:21:14,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-01 21:21:14,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:21:14,281 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1] [2024-11-01 21:21:14,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-01 21:21:14,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:21:14,482 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:21:14,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:21:14,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1845955269, now seen corresponding path program 2 times [2024-11-01 21:21:14,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:21:14,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471215367] [2024-11-01 21:21:14,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:21:14,484 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:21:14,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:21:14,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 21:21:14,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 21:21:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:21:14,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-01 21:21:14,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:21:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-01 21:21:17,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:21:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:21:30,201 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:21:30,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471215367] [2024-11-01 21:21:30,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [471215367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 21:21:30,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 21:21:30,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 14 [2024-11-01 21:21:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399038179] [2024-11-01 21:21:30,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 21:21:30,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-01 21:21:30,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:21:30,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-01 21:21:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-11-01 21:21:30,204 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 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 21:21:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:21:30,244 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-11-01 21:21:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 21:21:30,245 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 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 23 [2024-11-01 21:21:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:21:30,245 INFO L225 Difference]: With dead ends: 24 [2024-11-01 21:21:30,245 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 21:21:30,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2024-11-01 21:21:30,247 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 21:21:30,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 21:21:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 21:21:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 21:21:30,248 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 21:21:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 21:21:30,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-11-01 21:21:30,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:21:30,249 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 21:21:30,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 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 21:21:30,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 21:21:30,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 21:21:30,251 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 21:21:30,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-01 21:21:30,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:21:30,457 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-01 21:21:30,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 21:21:30,538 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 21:21:30,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-01 21:21:30,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 09:21:30 BoogieIcfgContainer [2024-11-01 21:21:30,556 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 21:21:30,558 INFO L158 Benchmark]: Toolchain (without parser) took 21921.79ms. Allocated memory was 188.7MB in the beginning and 836.8MB in the end (delta: 648.0MB). Free memory was 164.1MB in the beginning and 541.8MB in the end (delta: -377.6MB). Peak memory consumption was 270.9MB. Max. memory is 8.0GB. [2024-11-01 21:21:30,558 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 188.7MB. Free memory was 165.4MB in the beginning and 165.3MB in the end (delta: 65.5kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 21:21:30,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.85ms. Allocated memory is still 188.7MB. Free memory was 164.1MB in the beginning and 149.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-01 21:21:30,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.08ms. Allocated memory is still 188.7MB. Free memory was 149.4MB in the beginning and 147.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-01 21:21:30,559 INFO L158 Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 144.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-01 21:21:30,559 INFO L158 Benchmark]: RCFGBuilder took 385.03ms. Allocated memory is still 188.7MB. Free memory was 144.8MB in the beginning and 128.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-01 21:21:30,559 INFO L158 Benchmark]: TraceAbstraction took 21087.22ms. Allocated memory was 188.7MB in the beginning and 836.8MB in the end (delta: 648.0MB). Free memory was 128.0MB in the beginning and 541.8MB in the end (delta: -413.8MB). Peak memory consumption was 235.3MB. Max. memory is 8.0GB. [2024-11-01 21:21:30,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 188.7MB. Free memory was 165.4MB in the beginning and 165.3MB in the end (delta: 65.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.85ms. Allocated memory is still 188.7MB. Free memory was 164.1MB in the beginning and 149.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.08ms. Allocated memory is still 188.7MB. Free memory was 149.4MB in the beginning and 147.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.99ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 144.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 385.03ms. Allocated memory is still 188.7MB. Free memory was 144.8MB in the beginning and 128.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 21087.22ms. Allocated memory was 188.7MB in the beginning and 836.8MB in the end (delta: 648.0MB). Free memory was 128.0MB in the beginning and 541.8MB in the end (delta: -413.8MB). Peak memory consumption was 235.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 20.9s, OverallIterations: 3, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 10 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 16 QuantifiedInterpolants, 35194 SizeOfPredicates, 18 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 45/128 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 == var_13)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2024-11-01 21:21:30,607 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...