/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-2.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-6c470ae
[2022-02-15 01:12:52,207 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-15 01:12:52,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-15 01:12:52,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-15 01:12:52,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-15 01:12:52,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-15 01:12:52,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-15 01:12:52,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
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[2022-02-15 01:12:52,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-15 01:12:52,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-15 01:12:52,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-15 01:12:52,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-15 01:12:52,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-15 01:12:52,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-15 01:12:52,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-15 01:12:52,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-15 01:12:52,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-15 01:12:52,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-15 01:12:52,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-15 01:12:52,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-15 01:12:52,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-15 01:12:52,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-15 01:12:52,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-15 01:12:52,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-15 01:12:52,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-15 01:12:52,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-15 01:12:52,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2022-02-15 01:12:52,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2022-02-15 01:12:52,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-02-15 01:12:52,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-15 01:12:52,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2022-02-15 01:12:52,305 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-15 01:12:52,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-15 01:12:52,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-15 01:12:52,307 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-15 01:12:52,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-15 01:12:52,307 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-15 01:12:52,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-15 01:12:52,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-15 01:12:52,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-15 01:12:52,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-15 01:12:52,308 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-15 01:12:52,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-15 01:12:52,308 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-15 01:12:52,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 01:12:52,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-02-15 01:12:52,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-15 01:12:52,310 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2022-02-15 01:12:52,310 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-15 01:12:52,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-15 01:12:52,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-15 01:12:52,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-15 01:12:52,476 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-15 01:12:52,479 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-15 01:12:52,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c
[2022-02-15 01:12:52,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fed49cb7/867bb4b876bb486d843627603848cfc8/FLAG645f097f3
[2022-02-15 01:12:52,862 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-15 01:12:52,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c
[2022-02-15 01:12:52,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fed49cb7/867bb4b876bb486d843627603848cfc8/FLAG645f097f3
[2022-02-15 01:12:52,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fed49cb7/867bb4b876bb486d843627603848cfc8
[2022-02-15 01:12:52,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-15 01:12:52,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-15 01:12:52,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-15 01:12:52,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-15 01:12:52,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-15 01:12:52,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:12:52" (1/1) ...
[2022-02-15 01:12:52,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbd9370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:52, skipping insertion in model container
[2022-02-15 01:12:52,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:12:52" (1/1) ...
[2022-02-15 01:12:52,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-15 01:12:52,900 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-15 01:12:52,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c[414,427]
[2022-02-15 01:12:53,018 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 01:12:53,022 INFO L203 MainTranslator]: Completed pre-run
[2022-02-15 01:12:53,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-2.c[414,427]
[2022-02-15 01:12:53,042 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-15 01:12:53,052 INFO L208 MainTranslator]: Completed translation
[2022-02-15 01:12:53,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53 WrapperNode
[2022-02-15 01:12:53,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-15 01:12:53,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-15 01:12:53,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-15 01:12:53,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-15 01:12:53,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-15 01:12:53,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-15 01:12:53,072 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-15 01:12:53,072 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-15 01:12:53,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (1/1) ...
[2022-02-15 01:12:53,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-15 01:12:53,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-15 01:12:53,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-15 01:12:53,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-15 01:12:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-15 01:12:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-15 01:12:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-15 01:12:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-02-15 01:12:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-02-15 01:12:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-02-15 01:12:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-02-15 01:12:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-15 01:12:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-15 01:12:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-15 01:12:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-02-15 01:12:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-02-15 01:12:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-02-15 01:12:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2022-02-15 01:12:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-02-15 01:12:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-15 01:12:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-15 01:12:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-15 01:12:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-15 01:12:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-15 01:12:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-15 01:12:53,184 INFO L234 CfgBuilder]: Building ICFG
[2022-02-15 01:12:53,185 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-15 01:12:53,269 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-15 01:12:53,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-15 01:12:53,273 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-02-15 01:12:53,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:12:53 BoogieIcfgContainer
[2022-02-15 01:12:53,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-15 01:12:53,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-15 01:12:53,275 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-15 01:12:53,293 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-15 01:12:53,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:12:52" (1/3) ...
[2022-02-15 01:12:53,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b58ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:12:53, skipping insertion in model container
[2022-02-15 01:12:53,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:12:53" (2/3) ...
[2022-02-15 01:12:53,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b58ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:12:53, skipping insertion in model container
[2022-02-15 01:12:53,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:12:53" (3/3) ...
[2022-02-15 01:12:53,295 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c
[2022-02-15 01:12:53,298 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-02-15 01:12:53,298 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-15 01:12:53,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-15 01:12:53,349 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=JORDAN
[2022-02-15 01:12:53,350 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-15 01:12:53,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-02-15 01:12:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2022-02-15 01:12:53,367 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-15 01:12:53,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-15 01:12:53,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-15 01:12:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-15 01:12:53,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1267907657, now seen corresponding path program 1 times
[2022-02-15 01:12:53,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-15 01:12:53,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343181567]
[2022-02-15 01:12:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-15 01:12:53,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-15 01:12:53,452 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-15 01:12:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 01:12:53,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-15 01:12:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-15 01:12:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-15 01:12:53,689 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-15 01:12:53,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343181567]
[2022-02-15 01:12:53,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1343181567] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-15 01:12:53,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-15 01:12:53,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-02-15 01:12:53,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461160781]
[2022-02-15 01:12:53,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-15 01:12:53,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-02-15 01:12:53,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-15 01:12:53,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-02-15 01:12:53,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-02-15 01:12:53,714 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-02-15 01:12:53,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-15 01:12:53,819 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions.
[2022-02-15 01:12:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-02-15 01:12:53,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2022-02-15 01:12:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-15 01:12:53,829 INFO L225 Difference]: With dead ends: 36
[2022-02-15 01:12:53,829 INFO L226 Difference]: Without dead ends: 0
[2022-02-15 01:12:53,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2022-02-15 01:12:53,836 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-15 01:12:53,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 47 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-15 01:12:53,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-15 01:12:53,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-15 01:12:53,856 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)
[2022-02-15 01:12:53,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-15 01:12:53,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2022-02-15 01:12:53,858 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-15 01:12:53,858 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-15 01:12:53,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-02-15 01:12:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-15 01:12:53,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-15 01:12:53,860 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-02-15 01:12:53,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-15 01:12:53,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-02-15 01:12:53,942 INFO L858 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed.
[2022-02-15 01:12:53,943 INFO L858 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed.
[2022-02-15 01:12:53,943 INFO L858 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed.
[2022-02-15 01:12:53,943 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed.
[2022-02-15 01:12:53,943 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed.
[2022-02-15 01:12:53,943 INFO L858 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed.
[2022-02-15 01:12:53,943 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed.
[2022-02-15 01:12:53,944 INFO L861 garLoopResultBuilder]: At program point L29(lines 29 34) the Hoare annotation is: true
[2022-02-15 01:12:53,944 INFO L861 garLoopResultBuilder]: At program point L29-2(lines 26 35) the Hoare annotation is: true
[2022-02-15 01:12:53,944 INFO L861 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L861 garLoopResultBuilder]: At program point mainEXIT(lines 18 40) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L861 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L861 garLoopResultBuilder]: At program point mainFINAL(lines 18 40) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L861 garLoopResultBuilder]: At program point mainENTRY(lines 18 40) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L861 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 35) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~z~0 100))
[2022-02-15 01:12:53,945 INFO L861 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: true
[2022-02-15 01:12:53,945 INFO L854 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~z~0 100))
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 14) the Hoare annotation is: true
[2022-02-15 01:12:53,946 INFO L854 garLoopResultBuilder]: At program point L11(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2022-02-15 01:12:53,947 INFO L854 garLoopResultBuilder]: At program point L10(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2022-02-15 01:12:53,947 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 9 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2022-02-15 01:12:53,947 INFO L854 garLoopResultBuilder]: At program point L10-2(lines 9 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2022-02-15 01:12:53,947 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2022-02-15 01:12:53,949 INFO L732 BasicCegarLoop]: Path program histogram: [1]
[2022-02-15 01:12:53,950 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-15 01:12:53,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:12:53 BoogieIcfgContainer
[2022-02-15 01:12:53,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-15 01:12:53,967 INFO L158 Benchmark]: Toolchain (without parser) took 1085.67ms. Allocated memory is still 199.2MB. Free memory was 144.6MB in the beginning and 123.1MB in the end (delta: 21.5MB). Peak memory consumption was 21.8MB. Max. memory is 8.0GB.
[2022-02-15 01:12:53,971 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory was 160.8MB in the beginning and 160.7MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 8.0GB.
[2022-02-15 01:12:53,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.10ms. Allocated memory is still 199.2MB. Free memory was 144.4MB in the beginning and 169.8MB in the end (delta: -25.4MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB.
[2022-02-15 01:12:53,972 INFO L158 Benchmark]: Boogie Preprocessor took 18.44ms. Allocated memory is still 199.2MB. Free memory was 169.8MB in the beginning and 168.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-15 01:12:53,972 INFO L158 Benchmark]: RCFGBuilder took 202.37ms. Allocated memory is still 199.2MB. Free memory was 168.2MB in the beginning and 157.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-02-15 01:12:53,973 INFO L158 Benchmark]: TraceAbstraction took 690.74ms. Allocated memory is still 199.2MB. Free memory was 156.7MB in the beginning and 123.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB.
[2022-02-15 01:12:53,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory was 160.8MB in the beginning and 160.7MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 169.10ms. Allocated memory is still 199.2MB. Free memory was 144.4MB in the beginning and 169.8MB in the end (delta: -25.4MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 18.44ms. Allocated memory is still 199.2MB. Free memory was 169.8MB in the beginning and 168.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 202.37ms. Allocated memory is still 199.2MB. Free memory was 168.2MB in the beginning and 157.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* TraceAbstraction took 690.74ms. Allocated memory is still 199.2MB. Free memory was 156.7MB in the beginning and 123.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 11]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 26 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 67 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 26]: Loop Invariant
Derived loop invariant: 1
- ProcedureContractResult [Line: 18]: Procedure Contract for main
Derived contract for procedure main: 1
- ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0)
RESULT: Ultimate proved your program to be correct!
[2022-02-15 01:12:54,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...