/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.paper_v3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 15:39:28,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 15:39:28,932 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 15:39:28,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 15:39:28,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 15:39:28,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 15:39:28,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 15:39:28,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 15:39:28,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 15:39:28,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 15:39:28,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 15:39:28,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 15:39:28,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 15:39:28,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 15:39:28,965 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 15:39:28,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 15:39:28,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 15:39:28,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 15:39:28,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 15:39:28,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 15:39:28,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 15:39:28,967 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 15:39:28,967 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 15:39:28,967 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 15:39:28,968 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 15:39:28,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 15:39:28,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 15:39:28,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 15:39:28,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 15:39:28,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 15:39:28,969 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 15:39:28,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 15:39:28,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 15:39:28,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 15:39:28,970 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 15:39:28,970 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 15:39:28,971 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 15:39:28,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 15:39:28,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 15:39:28,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 15:39:28,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 15:39:28,973 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-05 15:39:29,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 15:39:29,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 15:39:29,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 15:39:29,216 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 15:39:29,216 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 15:39:29,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2024-11-05 15:39:30,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 15:39:30,803 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 15:39:30,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.paper_v3.c [2024-11-05 15:39:30,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb14a528/cc0e58aa3d3049888b7ded0dcdb8eb15/FLAG50ea8ea43 [2024-11-05 15:39:31,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdb14a528/cc0e58aa3d3049888b7ded0dcdb8eb15 [2024-11-05 15:39:31,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 15:39:31,213 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 15:39:31,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 15:39:31,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 15:39:31,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 15:39:31,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d51fe16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31, skipping insertion in model container [2024-11-05 15:39:31,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 15:39:31,401 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1248,1261] [2024-11-05 15:39:31,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 15:39:31,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 15:39:31,464 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.paper_v3.c[1248,1261] [2024-11-05 15:39:31,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 15:39:31,498 INFO L204 MainTranslator]: Completed translation [2024-11-05 15:39:31,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31 WrapperNode [2024-11-05 15:39:31,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 15:39:31,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 15:39:31,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 15:39:31,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 15:39:31,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,534 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2024-11-05 15:39:31,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 15:39:31,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 15:39:31,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 15:39:31,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 15:39:31,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,559 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]. [2024-11-05 15:39:31,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 15:39:31,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 15:39:31,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 15:39:31,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 15:39:31,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (1/1) ... [2024-11-05 15:39:31,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 15:39:31,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 15:39:31,620 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) [2024-11-05 15:39:31,626 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 [2024-11-05 15:39:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 15:39:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 15:39:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 15:39:31,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 15:39:31,755 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 15:39:31,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 15:39:32,026 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-05 15:39:32,027 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 15:39:32,040 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 15:39:32,041 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 15:39:32,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:39:32 BoogieIcfgContainer [2024-11-05 15:39:32,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 15:39:32,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 15:39:32,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 15:39:32,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 15:39:32,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:39:31" (1/3) ... [2024-11-05 15:39:32,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6657b95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:39:32, skipping insertion in model container [2024-11-05 15:39:32,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:39:31" (2/3) ... [2024-11-05 15:39:32,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6657b95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:39:32, skipping insertion in model container [2024-11-05 15:39:32,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:39:32" (3/3) ... [2024-11-05 15:39:32,049 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.paper_v3.c [2024-11-05 15:39:32,066 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 15:39:32,067 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 15:39:32,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 15:39:32,119 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;@255311d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 15:39:32,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 15:39:32,123 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) [2024-11-05 15:39:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-05 15:39:32,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 15:39:32,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-05 15:39:32,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 15:39:32,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 15:39:32,133 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-05 15:39:32,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 15:39:32,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742049351] [2024-11-05 15:39:32,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 15:39:32,141 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 15:39:32,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 15:39:32,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 15:39:32,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-05 15:39:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 15:39:32,246 WARN L253 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-05 15:39:32,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 15:39:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 15:39:32,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 15:39:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 15:39:32,580 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 15:39:32,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742049351] [2024-11-05 15:39:32,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [742049351] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 15:39:32,581 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 15:39:32,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 15:39:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121118239] [2024-11-05 15:39:32,583 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 15:39:32,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 15:39:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 15:39:32,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 15:39:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 15:39:32,614 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) [2024-11-05 15:39:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 15:39:32,703 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2024-11-05 15:39:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 15:39:32,706 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 [2024-11-05 15:39:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 15:39:32,713 INFO L225 Difference]: With dead ends: 21 [2024-11-05 15:39:32,713 INFO L226 Difference]: Without dead ends: 13 [2024-11-05 15:39:32,716 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 [2024-11-05 15:39:32,721 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 [2024-11-05 15:39:32,722 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] [2024-11-05 15:39:32,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-05 15:39:32,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-05 15:39:32,755 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) [2024-11-05 15:39:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-05 15:39:32,758 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 5 [2024-11-05 15:39:32,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 15:39:32,759 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-05 15:39:32,759 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) [2024-11-05 15:39:32,759 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-05 15:39:32,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 15:39:32,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 15:39:32,761 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-05 15:39:32,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-05 15:39:32,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 15:39:32,964 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 15:39:32,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 15:39:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 1 times [2024-11-05 15:39:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 15:39:32,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37681937] [2024-11-05 15:39:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 15:39:32,965 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 15:39:32,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 15:39:32,967 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 15:39:32,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-05 15:39:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 15:39:33,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-05 15:39:33,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 15:39:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 15:39:33,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 15:39:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 15:39:36,272 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 15:39:36,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37681937] [2024-11-05 15:39:36,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [37681937] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 15:39:36,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 15:39:36,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-05 15:39:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570022634] [2024-11-05 15:39:36,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 15:39:36,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-05 15:39:36,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 15:39:36,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-05 15:39:36,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-05 15:39:36,276 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) [2024-11-05 15:39:36,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 15:39:36,827 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2024-11-05 15:39:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-05 15:39:36,828 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 [2024-11-05 15:39:36,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 15:39:36,829 INFO L225 Difference]: With dead ends: 27 [2024-11-05 15:39:36,829 INFO L226 Difference]: Without dead ends: 25 [2024-11-05 15:39:36,830 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 [2024-11-05 15:39:36,831 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 [2024-11-05 15:39:36,831 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] [2024-11-05 15:39:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-05 15:39:36,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-11-05 15:39:36,836 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) [2024-11-05 15:39:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-11-05 15:39:36,837 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2024-11-05 15:39:36,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 15:39:36,837 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-11-05 15:39:36,838 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) [2024-11-05 15:39:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-11-05 15:39:36,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-05 15:39:36,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 15:39:36,838 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1] [2024-11-05 15:39:36,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-05 15:39:37,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 15:39:37,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 15:39:37,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 15:39:37,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1845955269, now seen corresponding path program 2 times [2024-11-05 15:39:37,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 15:39:37,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679890301] [2024-11-05 15:39:37,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 15:39:37,043 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-05 15:39:37,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 15:39:37,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-05 15:39:37,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-05 15:39:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 15:39:37,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-05 15:39:37,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 15:39:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-05 15:39:38,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 15:39:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 15:39:51,580 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 15:39:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679890301] [2024-11-05 15:39:51,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [679890301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 15:39:51,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 15:39:51,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 13 [2024-11-05 15:39:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669110343] [2024-11-05 15:39:51,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 15:39:51,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-05 15:39:51,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 15:39:51,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-05 15:39:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-05 15:39:51,583 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2024-11-05 15:39:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 15:39:51,612 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-11-05 15:39:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 15:39:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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 [2024-11-05 15:39:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 15:39:51,613 INFO L225 Difference]: With dead ends: 24 [2024-11-05 15:39:51,613 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 15:39:51,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-05 15:39:51,614 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 15:39:51,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 15:39:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 15:39:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 15:39:51,616 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) [2024-11-05 15:39:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 15:39:51,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2024-11-05 15:39:51,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 15:39:51,617 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 15:39:51,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2024-11-05 15:39:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 15:39:51,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 15:39:51,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 15:39:51,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-05 15:39:51,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-05 15:39:51,825 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-05 15:39:51,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 15:39:51,907 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 15:39:51,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 03:39:51 BoogieIcfgContainer [2024-11-05 15:39:51,919 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 15:39:51,920 INFO L158 Benchmark]: Toolchain (without parser) took 20706.18ms. Allocated memory was 196.1MB in the beginning and 858.8MB in the end (delta: 662.7MB). Free memory was 143.4MB in the beginning and 588.6MB in the end (delta: -445.3MB). Peak memory consumption was 218.5MB. Max. memory is 8.0GB. [2024-11-05 15:39:51,920 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 15:39:51,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.46ms. Allocated memory is still 196.1MB. Free memory was 143.1MB in the beginning and 128.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-05 15:39:51,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.74ms. Allocated memory is still 196.1MB. Free memory was 128.4MB in the beginning and 126.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 15:39:51,921 INFO L158 Benchmark]: Boogie Preprocessor took 43.02ms. Allocated memory is still 196.1MB. Free memory was 126.3MB in the beginning and 123.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 15:39:51,921 INFO L158 Benchmark]: RCFGBuilder took 462.71ms. Allocated memory was 196.1MB in the beginning and 335.5MB in the end (delta: 139.5MB). Free memory was 123.8MB in the beginning and 301.5MB in the end (delta: -177.7MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2024-11-05 15:39:51,921 INFO L158 Benchmark]: TraceAbstraction took 19875.33ms. Allocated memory was 335.5MB in the beginning and 858.8MB in the end (delta: 523.2MB). Free memory was 300.5MB in the beginning and 588.6MB in the end (delta: -288.1MB). Peak memory consumption was 234.6MB. Max. memory is 8.0GB. [2024-11-05 15:39:51,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 151.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 284.46ms. Allocated memory is still 196.1MB. Free memory was 143.1MB in the beginning and 128.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.74ms. Allocated memory is still 196.1MB. Free memory was 128.4MB in the beginning and 126.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.02ms. Allocated memory is still 196.1MB. Free memory was 126.3MB in the beginning and 123.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 462.71ms. Allocated memory was 196.1MB in the beginning and 335.5MB in the end (delta: 139.5MB). Free memory was 123.8MB in the beginning and 301.5MB in the end (delta: -177.7MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * TraceAbstraction took 19875.33ms. Allocated memory was 335.5MB in the beginning and 858.8MB in the end (delta: 523.2MB). Free memory was 300.5MB in the beginning and 588.6MB in the end (delta: -288.1MB). Peak memory consumption was 234.6MB. 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: 19.7s, 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, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 10 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.3s 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, 18.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 1 QuantifiedInterpolants, 34736 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: ((((((1 == var_23) && (1 == var_13)) && (state_5 == state_7)) && (1 == mask_SORT_1)) && (0 == ((1 + mask_SORT_3) % 256))) && (0 == ((1 + var_19) % 256))) RESULT: Ultimate proved your program to be correct! [2024-11-05 15:39:51,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...