/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.zaher.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 05:48:41,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 05:48:41,865 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 05:48:41,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 05:48:41,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 05:48:41,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 05:48:41,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 05:48:41,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 05:48:41,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 05:48:41,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 05:48:41,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 05:48:41,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 05:48:41,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 05:48:41,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 05:48:41,908 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 05:48:41,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 05:48:41,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 05:48:41,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 05:48:41,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 05:48:41,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 05:48:41,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 05:48:41,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 05:48:41,911 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 05:48:41,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 05:48:41,911 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 05:48:41,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 05:48:41,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 05:48:41,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 05:48:41,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 05:48:41,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 05:48:41,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 05:48:41,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:48:41,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 05:48:41,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 05:48:41,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 05:48:41,914 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 05:48:41,914 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 05:48:41,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 05:48:41,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 05:48:41,915 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 05:48:41,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 05:48:41,917 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 05:48:41,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:48:42,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 05:48:42,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 05:48:42,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 05:48:42,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 05:48:42,256 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 05:48:42,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.zaher.c [2024-11-01 05:48:43,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 05:48:44,073 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 05:48:44,074 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.zaher.c [2024-11-01 05:48:44,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d139e51c/b3e7d09601d7459fa4acc356072e22ab/FLAG59b2a25fa [2024-11-01 05:48:44,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d139e51c/b3e7d09601d7459fa4acc356072e22ab [2024-11-01 05:48:44,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 05:48:44,098 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 05:48:44,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 05:48:44,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 05:48:44,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 05:48:44,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c933eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44, skipping insertion in model container [2024-11-01 05:48:44,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,145 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 05:48:44,330 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.zaher.c[1245,1258] [2024-11-01 05:48:44,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:48:44,444 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 05:48:44,457 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.zaher.c[1245,1258] [2024-11-01 05:48:44,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:48:44,573 INFO L204 MainTranslator]: Completed translation [2024-11-01 05:48:44,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44 WrapperNode [2024-11-01 05:48:44,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 05:48:44,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 05:48:44,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 05:48:44,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 05:48:44,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,672 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 434 [2024-11-01 05:48:44,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 05:48:44,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 05:48:44,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 05:48:44,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 05:48:44,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,728 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-01 05:48:44,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 05:48:44,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 05:48:44,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 05:48:44,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 05:48:44,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (1/1) ... [2024-11-01 05:48:44,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:48:44,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:48:44,819 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 05:48:44,823 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 05:48:44,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 05:48:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 05:48:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 05:48:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 05:48:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 05:48:45,014 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 05:48:45,016 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 05:48:45,438 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2024-11-01 05:48:45,438 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 05:48:45,453 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 05:48:45,453 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 05:48:45,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:48:45 BoogieIcfgContainer [2024-11-01 05:48:45,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 05:48:45,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 05:48:45,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 05:48:45,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 05:48:45,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 05:48:44" (1/3) ... [2024-11-01 05:48:45,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed94c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:48:45, skipping insertion in model container [2024-11-01 05:48:45,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:48:44" (2/3) ... [2024-11-01 05:48:45,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed94c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:48:45, skipping insertion in model container [2024-11-01 05:48:45,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:48:45" (3/3) ... [2024-11-01 05:48:45,463 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.zaher.c [2024-11-01 05:48:45,505 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 05:48:45,506 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 05:48:45,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 05:48:45,573 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;@7c0f4921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 05:48:45,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 05:48:45,578 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 05:48:45,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 05:48:45,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:48:45,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 05:48:45,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:48:45,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:48:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 05:48:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:48:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274957979] [2024-11-01 05:48:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:48:45,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:48:45,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:48:45,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 05:48:45,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-01 05:48:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:48:45,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-01 05:48:45,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:48:45,986 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 05:48:45,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:48:51,379 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 05:48:51,380 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:48:51,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274957979] [2024-11-01 05:48:51,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [274957979] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 05:48:51,381 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 05:48:51,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 05:48:51,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580750330] [2024-11-01 05:48:51,390 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 05:48:51,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 05:48:51,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:48:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 05:48:51,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2024-11-01 05:48:51,425 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 05:48:51,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:48:51,495 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 05:48:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 05:48:51,498 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 05:48:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:48:51,505 INFO L225 Difference]: With dead ends: 18 [2024-11-01 05:48:51,505 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 05:48:51,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2024-11-01 05:48:51,511 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 05:48:51,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 05:48:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 05:48:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 05:48:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:48:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 05:48:51,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 05:48:51,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:48:51,541 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 05:48:51,542 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 05:48:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 05:48:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 05:48:51,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:48:51,543 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 05:48:51,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-01 05:48:51,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:48:51,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:48:51,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:48:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 05:48:51,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:48:51,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120735031] [2024-11-01 05:48:51,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:48:51,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:48:51,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:48:51,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 05:48:51,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-01 05:48:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:48:51,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-01 05:48:52,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:48:52,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:48:52,287 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:49:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 05:49:11,929 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:49:11,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120735031] [2024-11-01 05:49:11,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [120735031] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 05:49:11,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 05:49:11,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 05:49:11,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670653894] [2024-11-01 05:49:11,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 05:49:11,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 05:49:11,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:49:11,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 05:49:11,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=61, Unknown=4, NotChecked=0, Total=90 [2024-11-01 05:49:11,935 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:49:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:49:21,720 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2024-11-01 05:49:21,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 05:49:21,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-01 05:49:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:49:21,721 INFO L225 Difference]: With dead ends: 10 [2024-11-01 05:49:21,721 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 05:49:21,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=62, Invalid=114, Unknown=6, NotChecked=0, Total=182 [2024-11-01 05:49:21,723 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 05:49:21,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 05:49:21,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 05:49:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 05:49:21,725 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 05:49:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 05:49:21,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-01 05:49:21,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:49:21,725 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 05:49:21,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 05:49:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 05:49:21,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 05:49:21,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 05:49:21,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-01 05:49:21,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:49:21,932 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-01 05:49:21,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 05:49:21,996 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 05:49:22,011 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-01 05:49:22,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 05:49:22 BoogieIcfgContainer [2024-11-01 05:49:22,016 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 05:49:22,017 INFO L158 Benchmark]: Toolchain (without parser) took 37919.35ms. Allocated memory was 185.6MB in the beginning and 247.5MB in the end (delta: 61.9MB). Free memory was 142.9MB in the beginning and 174.6MB in the end (delta: -31.7MB). Peak memory consumption was 31.3MB. Max. memory is 8.0GB. [2024-11-01 05:49:22,018 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 161.7MB in the beginning and 161.5MB in the end (delta: 152.3kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 05:49:22,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.37ms. Allocated memory is still 185.6MB. Free memory was 142.4MB in the beginning and 120.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2024-11-01 05:49:22,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.61ms. Allocated memory is still 185.6MB. Free memory was 120.4MB in the beginning and 116.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-01 05:49:22,021 INFO L158 Benchmark]: Boogie Preprocessor took 104.75ms. Allocated memory is still 185.6MB. Free memory was 116.2MB in the beginning and 112.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-01 05:49:22,022 INFO L158 Benchmark]: RCFGBuilder took 675.08ms. Allocated memory is still 185.6MB. Free memory was 112.0MB in the beginning and 61.7MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2024-11-01 05:49:22,022 INFO L158 Benchmark]: TraceAbstraction took 36560.97ms. Allocated memory was 185.6MB in the beginning and 247.5MB in the end (delta: 61.9MB). Free memory was 60.6MB in the beginning and 174.6MB in the end (delta: -114.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 05:49:22,024 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 161.7MB in the beginning and 161.5MB in the end (delta: 152.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 477.37ms. Allocated memory is still 185.6MB. Free memory was 142.4MB in the beginning and 120.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 95.61ms. Allocated memory is still 185.6MB. Free memory was 120.4MB in the beginning and 116.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 104.75ms. Allocated memory is still 185.6MB. Free memory was 116.2MB in the beginning and 112.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 675.08ms. Allocated memory is still 185.6MB. Free memory was 112.0MB in the beginning and 61.7MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 36560.97ms. Allocated memory was 185.6MB in the beginning and 247.5MB in the end (delta: 61.9MB). Free memory was 60.6MB in the beginning and 174.6MB in the end (delta: -114.0MB). There was no memory consumed. 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: 36.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 34.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 5 QuantifiedInterpolants, 331 SizeOfPredicates, 6 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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: 104]: Loop Invariant Derived loop invariant: ((((((1 + state_14) % 256) == 0) && (1 == mask_SORT_1)) && (0 == var_5)) || (((1 == mask_SORT_1) && (0 == var_5)) && (0 == state_22))) RESULT: Ultimate proved your program to be correct! [2024-11-01 05:49:22,242 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-01 05:49:22,283 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...