/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 08:00:42,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 08:00:42,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 08:00:42,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 08:00:42,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 08:00:42,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 08:00:42,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 08:00:42,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 08:00:42,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 08:00:42,729 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 08:00:42,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 08:00:42,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 08:00:42,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 08:00:42,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 08:00:42,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 08:00:42,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 08:00:42,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 08:00:42,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 08:00:42,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 08:00:42,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 08:00:42,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 08:00:42,738 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 08:00:42,738 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 08:00:42,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 08:00:42,739 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 08:00:42,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 08:00:42,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 08:00:42,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 08:00:42,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 08:00:42,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 08:00:42,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 08:00:42,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 08:00:42,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 08:00:42,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 08:00:42,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 08:00:42,741 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 08:00:42,742 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 08:00:42,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 08:00:42,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 08:00:42,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 08:00:42,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 08:00:42,743 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 08:00:42,743 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-01 08:00:43,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 08:00:43,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 08:00:43,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 08:00:43,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 08:00:43,084 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 08:00:43,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2024-11-01 08:00:44,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 08:00:44,944 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 08:00:44,944 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2024-11-01 08:00:44,973 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0038dd46b/17716154cac4448ab3d9da59068f2511/FLAG3a4a0d48a [2024-11-01 08:00:44,995 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0038dd46b/17716154cac4448ab3d9da59068f2511 [2024-11-01 08:00:44,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 08:00:44,998 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 08:00:45,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 08:00:45,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 08:00:45,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 08:00:45,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 08:00:44" (1/1) ... [2024-11-01 08:00:45,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aab1919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45, skipping insertion in model container [2024-11-01 08:00:45,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 08:00:44" (1/1) ... [2024-11-01 08:00:45,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 08:00:45,252 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.Huffman_dec.c[1251,1264] [2024-11-01 08:00:45,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 08:00:45,457 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 08:00:45,471 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.Huffman_dec.c[1251,1264] [2024-11-01 08:00:45,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 08:00:45,613 INFO L204 MainTranslator]: Completed translation [2024-11-01 08:00:45,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45 WrapperNode [2024-11-01 08:00:45,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 08:00:45,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 08:00:45,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 08:00:45,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 08:00:45,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,722 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 775 [2024-11-01 08:00:45,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 08:00:45,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 08:00:45,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 08:00:45,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 08:00:45,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,777 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-01 08:00:45,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 08:00:45,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 08:00:45,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 08:00:45,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 08:00:45,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (1/1) ... [2024-11-01 08:00:45,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 08:00:45,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 08:00:45,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-01 08:00:45,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-01 08:00:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 08:00:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 08:00:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 08:00:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 08:00:46,120 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 08:00:46,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 08:00:46,987 INFO L? ?]: Removed 275 outVars from TransFormulas that were not future-live. [2024-11-01 08:00:46,988 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 08:00:46,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 08:00:46,998 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 08:00:46,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 08:00:46 BoogieIcfgContainer [2024-11-01 08:00:47,000 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 08:00:47,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 08:00:47,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 08:00:47,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 08:00:47,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 08:00:44" (1/3) ... [2024-11-01 08:00:47,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124c872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 08:00:47, skipping insertion in model container [2024-11-01 08:00:47,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:00:45" (2/3) ... [2024-11-01 08:00:47,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124c872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 08:00:47, skipping insertion in model container [2024-11-01 08:00:47,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 08:00:46" (3/3) ... [2024-11-01 08:00:47,012 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_dec.c [2024-11-01 08:00:47,029 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 08:00:47,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 08:00:47,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 08:00:47,097 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;@6691c773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 08:00:47,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 08:00:47,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:00:47,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 08:00:47,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 08:00:47,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 08:00:47,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 08:00:47,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 08:00:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 08:00:47,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 08:00:47,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404734546] [2024-11-01 08:00:47,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 08:00:47,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 08:00:47,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 08:00:47,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 08:00:47,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 08:00:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 08:00:47,750 WARN L253 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 266 conjuncts are in the unsatisfiable core [2024-11-01 08:00:47,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 08:00:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 08:00:59,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 08:01:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 08:01:15,849 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 08:01:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404734546] [2024-11-01 08:01:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [404734546] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 08:01:15,851 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 08:01:15,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 08:01:15,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297727594] [2024-11-01 08:01:15,853 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 08:01:15,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 08:01:15,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 08:01:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 08:01:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 08:01:15,881 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:01:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 08:01:16,227 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 08:01:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 08:01:16,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-01 08:01:16,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 08:01:16,236 INFO L225 Difference]: With dead ends: 18 [2024-11-01 08:01:16,236 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 08:01:16,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 08:01:16,241 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 08:01:16,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 08:01:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 08:01:16,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 08:01:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:01:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 08:01:16,268 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 08:01:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 08:01:16,268 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 08:01:16,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:01:16,269 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 08:01:16,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 08:01:16,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 08:01:16,269 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 08:01:16,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-01 08:01:16,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 08:01:16,474 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 08:01:16,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 08:01:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 08:01:16,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 08:01:16,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671983681] [2024-11-01 08:01:16,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 08:01:16,476 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 08:01:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 08:01:16,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 08:01:16,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 08:01:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 08:01:17,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-01 08:01:17,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 08:01:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-01 08:01:20,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 08:01:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-01 08:01:23,810 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 08:01:23,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671983681] [2024-11-01 08:01:23,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1671983681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 08:01:23,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 08:01:23,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-01 08:01:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533808374] [2024-11-01 08:01:23,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 08:01:23,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 08:01:23,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 08:01:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 08:01:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 08:01:23,814 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:01:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 08:01:24,024 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-11-01 08:01:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 08:01:24,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-01 08:01:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 08:01:24,026 INFO L225 Difference]: With dead ends: 9 [2024-11-01 08:01:24,026 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 08:01:24,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 08:01:24,028 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 08:01:24,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 08:01:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 08:01:24,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 08:01:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:01:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 08:01:24,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-01 08:01:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 08:01:24,030 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 08:01:24,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 08:01:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 08:01:24,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 08:01:24,033 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 08:01:24,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-01 08:01:24,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 08:01:24,237 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-01 08:01:24,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 08:01:24,551 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 08:01:24,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 08:01:24 BoogieIcfgContainer [2024-11-01 08:01:24,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 08:01:24,579 INFO L158 Benchmark]: Toolchain (without parser) took 39580.74ms. Allocated memory was 194.0MB in the beginning and 896.5MB in the end (delta: 702.5MB). Free memory was 158.5MB in the beginning and 577.5MB in the end (delta: -419.0MB). Peak memory consumption was 284.0MB. Max. memory is 8.0GB. [2024-11-01 08:01:24,579 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 194.0MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 08:01:24,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.25ms. Allocated memory is still 194.0MB. Free memory was 157.9MB in the beginning and 125.4MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2024-11-01 08:01:24,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.79ms. Allocated memory is still 194.0MB. Free memory was 125.4MB in the beginning and 118.6MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2024-11-01 08:01:24,580 INFO L158 Benchmark]: Boogie Preprocessor took 107.10ms. Allocated memory is still 194.0MB. Free memory was 118.6MB in the beginning and 111.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-11-01 08:01:24,581 INFO L158 Benchmark]: RCFGBuilder took 1168.09ms. Allocated memory was 194.0MB in the beginning and 249.6MB in the end (delta: 55.6MB). Free memory was 111.8MB in the beginning and 174.6MB in the end (delta: -62.8MB). Peak memory consumption was 34.2MB. Max. memory is 8.0GB. [2024-11-01 08:01:24,581 INFO L158 Benchmark]: TraceAbstraction took 37574.73ms. Allocated memory was 249.6MB in the beginning and 896.5MB in the end (delta: 647.0MB). Free memory was 174.1MB in the beginning and 577.5MB in the end (delta: -403.4MB). Peak memory consumption was 243.5MB. Max. memory is 8.0GB. [2024-11-01 08:01:24,584 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 194.0MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 617.25ms. Allocated memory is still 194.0MB. Free memory was 157.9MB in the beginning and 125.4MB in the end (delta: 32.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 104.79ms. Allocated memory is still 194.0MB. Free memory was 125.4MB in the beginning and 118.6MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 107.10ms. Allocated memory is still 194.0MB. Free memory was 118.6MB in the beginning and 111.8MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1168.09ms. Allocated memory was 194.0MB in the beginning and 249.6MB in the end (delta: 55.6MB). Free memory was 111.8MB in the beginning and 174.6MB in the end (delta: -62.8MB). Peak memory consumption was 34.2MB. Max. memory is 8.0GB. * TraceAbstraction took 37574.73ms. Allocated memory was 249.6MB in the beginning and 896.5MB in the end (delta: 647.0MB). Free memory was 174.1MB in the beginning and 577.5MB in the end (delta: -403.4MB). Peak memory consumption was 243.5MB. 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: 37.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 34.7s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 5 QuantifiedInterpolants, 2830 SizeOfPredicates, 68 NumberOfNonLiveVariables, 1024 ConjunctsInSsa, 394 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 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: 147]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((1 == mask_SORT_3) && (78 == var_103)) && (77 == var_46)) && (70 == var_83)) && (84 == var_98)) && (79 == var_113)) && (73 == var_118)) && (90 == var_16)) && (88 == var_21)) && (74 == var_7)) && (83 == var_128)) && (32 == var_90)) && (67 == var_78)) && (71 == var_55)) && (66 == var_41)) && (0 == var_6)) && (69 == var_137)) && (80 == var_88)) && (86 == var_36)) && (89 == var_51)) && (65 == var_123)) && (81 == var_31)) && (75 == var_26)) && (255 == var_145)) && (85 == var_93)) && (72 == var_69)) && (87 == var_59)) && (82 == var_108)) && (68 == var_64)) && (76 == var_61)) RESULT: Ultimate proved your program to be correct! [2024-11-01 08:01:24,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...