/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop1-back-serstep.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 21:35:05,914 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-16 21:35:05,983 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2023-12-16 21:35:05,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 21:35:05,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 21:35:06,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 21:35:06,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 21:35:06,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 21:35:06,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 21:35:06,014 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-16 21:35:06,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 21:35:06,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 21:35:06,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 21:35:06,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-16 21:35:06,015 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-16 21:35:06,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 21:35:06,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-16 21:35:06,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-16 21:35:06,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 21:35:06,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 21:35:06,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 21:35:06,022 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-12-16 21:35:06,022 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-12-16 21:35:06,022 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-16 21:35:06,022 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-16 21:35:06,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-16 21:35:06,022 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-16 21:35:06,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 21:35:06,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-16 21:35:06,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 21:35:06,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-16 21:35:06,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 21:35:06,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 21:35:06,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 21:35:06,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 21:35:06,024 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-12-16 21:35:06,024 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-16 21:35:06,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 21:35:06,025 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 21:35:06,025 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 21:35:06,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 21:35:06,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 21:35:06,025 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-12-16 21:35:06,025 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-16 21:35:06,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 21:35:06,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 21:35:06,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 21:35:06,226 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-16 21:35:06,242 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-16 21:35:06,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop1-back-serstep.c
[2023-12-16 21:35:07,333 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-16 21:35:07,650 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-16 21:35:07,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop1-back-serstep.c
[2023-12-16 21:35:07,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13f25b23b/dd2962a2ff1f4887a53a9168af147752/FLAG8634cd50b
[2023-12-16 21:35:07,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13f25b23b/dd2962a2ff1f4887a53a9168af147752
[2023-12-16 21:35:07,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 21:35:07,688 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 21:35:07,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 21:35:07,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 21:35:07,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 21:35:07,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:35:07" (1/1) ...
[2023-12-16 21:35:07,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdb69c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:07, skipping insertion in model container
[2023-12-16 21:35:07,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:35:07" (1/1) ...
[2023-12-16 21:35:07,771 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-16 21:35:07,957 WARN L239 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.cambridge.3.prop1-back-serstep.c[1177,1190]
[2023-12-16 21:35:08,347 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-16 21:35:08,361 INFO L202 MainTranslator]: Completed pre-run
[2023-12-16 21:35:08,371 WARN L239 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.cambridge.3.prop1-back-serstep.c[1177,1190]
[2023-12-16 21:35:08,594 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-16 21:35:08,605 INFO L206 MainTranslator]: Completed translation
[2023-12-16 21:35:08,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08 WrapperNode
[2023-12-16 21:35:08,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 21:35:08,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 21:35:08,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 21:35:08,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 21:35:08,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:08,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:08,802 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5610
[2023-12-16 21:35:08,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 21:35:08,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 21:35:08,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 21:35:08,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 21:35:08,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:08,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:08,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:08,949 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].
[2023-12-16 21:35:08,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:08,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:09,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:09,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:09,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:09,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:09,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 21:35:09,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 21:35:09,065 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 21:35:09,065 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-16 21:35:09,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (1/1) ...
[2023-12-16 21:35:09,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 21:35:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 21:35:09,104 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)
[2023-12-16 21:35:09,123 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
[2023-12-16 21:35:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 21:35:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-16 21:35:09,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 21:35:09,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 21:35:09,750 INFO L241 CfgBuilder]: Building ICFG
[2023-12-16 21:35:09,751 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 21:35:21,833 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-16 21:35:21,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 21:35:21,999 INFO L309 CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 21:35:22,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:35:21 BoogieIcfgContainer
[2023-12-16 21:35:22,000 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 21:35:22,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 21:35:22,002 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 21:35:22,004 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-16 21:35:22,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:35:07" (1/3) ...
[2023-12-16 21:35:22,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73356afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:35:22, skipping insertion in model container
[2023-12-16 21:35:22,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:35:08" (2/3) ...
[2023-12-16 21:35:22,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73356afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:35:22, skipping insertion in model container
[2023-12-16 21:35:22,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:35:21" (3/3) ...
[2023-12-16 21:35:22,006 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.3.prop1-back-serstep.c
[2023-12-16 21:35:22,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 21:35:22,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 21:35:22,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 21:35:22,061 INFO L357 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, mHoare=true, 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;@61d4ded4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 21:35:22,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 21:35:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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)
[2023-12-16 21:35:22,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-12-16 21:35:22,068 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 21:35:22,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-12-16 21:35:22,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 21:35:22,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 21:35:22,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times
[2023-12-16 21:35:22,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 21:35:22,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822915964]
[2023-12-16 21:35:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 21:35:22,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 21:35:22,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 21:35:22,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 21:35:22,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-16 21:35:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 21:35:22,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 21:35:22,983 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 21:35:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 21:35:23,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 21:35:23,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 21:35:23,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822915964]
[2023-12-16 21:35:23,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822915964] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 21:35:23,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 21:35:23,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-16 21:35:23,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995645379]
[2023-12-16 21:35:23,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 21:35:23,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 21:35:23,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 21:35:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 21:35:23,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 21:35:23,194 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2023-12-16 21:35:28,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-16 21:35:32,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-16 21:35:36,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-16 21:35:41,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-16 21:35:45,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-16 21:35:45,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 21:35:45,348 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions.
[2023-12-16 21:35:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-12-16 21:35:45,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2023-12-16 21:35:45,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 21:35:45,547 INFO L225 Difference]: With dead ends: 16
[2023-12-16 21:35:45,547 INFO L226 Difference]: Without dead ends: 9
[2023-12-16 21:35:45,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 21:35:45,552 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time
[2023-12-16 21:35:45,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time]
[2023-12-16 21:35:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2023-12-16 21:35:45,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8.
[2023-12-16 21:35:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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)
[2023-12-16 21:35:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2023-12-16 21:35:45,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4
[2023-12-16 21:35:45,582 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 21:35:45,583 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2023-12-16 21:35:45,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2023-12-16 21:35:45,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2023-12-16 21:35:45,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2023-12-16 21:35:45,583 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 21:35:45,584 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1]
[2023-12-16 21:35:45,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-16 21:35:45,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 21:35:45,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 21:35:45,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 21:35:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times
[2023-12-16 21:35:45,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 21:35:45,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103306041]
[2023-12-16 21:35:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 21:35:45,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 21:35:45,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 21:35:45,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 21:35:45,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-16 21:36:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 21:36:13,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 80 conjunts are in the unsatisfiable core
[2023-12-16 21:36:13,682 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 21:36:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 21:36:14,446 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 21:36:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-16 21:36:15,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 21:36:15,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103306041]
[2023-12-16 21:36:15,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103306041] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 21:36:15,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 21:36:15,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2023-12-16 21:36:15,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668898323]
[2023-12-16 21:36:15,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 21:36:15,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-16 21:36:15,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 21:36:15,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-16 21:36:15,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2023-12-16 21:36:15,658 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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)
Received shutdown request...
[2023-12-16 21:36:20,091 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 21:36:20,091 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 21:36:20,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-16 21:36:21,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-16 21:36:21,292 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
[2023-12-16 21:36:21,318 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 137
[2023-12-16 21:36:21,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2023-12-16 21:36:21,321 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-12-16 21:36:21,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time]
[2023-12-16 21:36:21,323 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 21:36:21,323 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor.
[2023-12-16 21:36:21,329 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-12-16 21:36:21,331 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 21:36:21,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:36:21 BoogieIcfgContainer
[2023-12-16 21:36:21,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 21:36:21,333 INFO L158 Benchmark]: Toolchain (without parser) took 73645.35ms. Allocated memory was 201.3MB in the beginning and 654.3MB in the end (delta: 453.0MB). Free memory was 142.3MB in the beginning and 415.7MB in the end (delta: -273.4MB). Peak memory consumption was 179.7MB. Max. memory is 8.0GB.
[2023-12-16 21:36:21,333 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 21:36:21,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 915.10ms. Allocated memory was 201.3MB in the beginning and 263.2MB in the end (delta: 61.9MB). Free memory was 142.3MB in the beginning and 183.4MB in the end (delta: -41.2MB). Peak memory consumption was 115.2MB. Max. memory is 8.0GB.
[2023-12-16 21:36:21,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 196.34ms. Allocated memory is still 263.2MB. Free memory was 183.4MB in the beginning and 143.1MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB.
[2023-12-16 21:36:21,334 INFO L158 Benchmark]: Boogie Preprocessor took 260.78ms. Allocated memory is still 263.2MB. Free memory was 143.1MB in the beginning and 139.2MB in the end (delta: 3.8MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB.
[2023-12-16 21:36:21,335 INFO L158 Benchmark]: RCFGBuilder took 12935.05ms. Allocated memory was 263.2MB in the beginning and 654.3MB in the end (delta: 391.1MB). Free memory was 139.2MB in the beginning and 253.7MB in the end (delta: -114.5MB). Peak memory consumption was 377.8MB. Max. memory is 8.0GB.
[2023-12-16 21:36:21,335 INFO L158 Benchmark]: TraceAbstraction took 59331.21ms. Allocated memory is still 654.3MB. Free memory was 253.2MB in the beginning and 415.7MB in the end (delta: -162.5MB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 21:36:21,336 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 201.3MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 915.10ms. Allocated memory was 201.3MB in the beginning and 263.2MB in the end (delta: 61.9MB). Free memory was 142.3MB in the beginning and 183.4MB in the end (delta: -41.2MB). Peak memory consumption was 115.2MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 196.34ms. Allocated memory is still 263.2MB. Free memory was 183.4MB in the beginning and 143.1MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 260.78ms. Allocated memory is still 263.2MB. Free memory was 143.1MB in the beginning and 139.2MB in the end (delta: 3.8MB). Peak memory consumption was 32.7MB. Max. memory is 8.0GB.
* RCFGBuilder took 12935.05ms. Allocated memory was 263.2MB in the beginning and 654.3MB in the end (delta: 391.1MB). Free memory was 139.2MB in the beginning and 253.7MB in the end (delta: -114.5MB). Peak memory consumption was 377.8MB. Max. memory is 8.0GB.
* TraceAbstraction took 59331.21ms. Allocated memory is still 654.3MB. Free memory was 253.2MB in the beginning and 415.7MB in the end (delta: -162.5MB). There was no memory consumed. 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
- TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while executing Executor.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 26.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 26.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 3 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 26.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 4 QuantifiedInterpolants, 776 SizeOfPredicates, 118 NumberOfNonLiveVariables, 5265 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 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
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown