/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0970a.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-02-01 00:18:53,964 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-01 00:18:53,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-01 00:18:54,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-01 00:18:54,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-01 00:18:54,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2022-02-01 00:18:54,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-01 00:18:54,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-01 00:18:54,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-01 00:18:54,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-01 00:18:54,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
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[2022-02-01 00:18:54,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-01 00:18:54,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-01 00:18:54,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-01 00:18:54,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-01 00:18:54,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-01 00:18:54,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-01 00:18:54,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-01 00:18:54,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-01 00:18:54,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-01 00:18:54,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2022-02-01 00:18:54,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2022-02-01 00:18:54,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
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[2022-02-01 00:18:54,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-01 00:18:54,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf
[2022-02-01 00:18:54,069 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-01 00:18:54,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-01 00:18:54,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-01 00:18:54,071 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-01 00:18:54,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-01 00:18:54,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-01 00:18:54,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-01 00:18:54,072 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-01 00:18:54,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-01 00:18:54,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-01 00:18:54,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-01 00:18:54,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2022-02-01 00:18:54,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-01 00:18:54,073 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR
[2022-02-01 00:18:54,073 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-01 00:18:54,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-01 00:18:54,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-01 00:18:54,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-01 00:18:54,259 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-01 00:18:54,261 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-01 00:18:54,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0970a.c
[2022-02-01 00:18:54,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f3646be/653a61ca97764f389775a9be0ef83014/FLAGb190e9f51
[2022-02-01 00:18:54,677 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-01 00:18:54,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0970a.c
[2022-02-01 00:18:54,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f3646be/653a61ca97764f389775a9be0ef83014/FLAGb190e9f51
[2022-02-01 00:18:54,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f3646be/653a61ca97764f389775a9be0ef83014
[2022-02-01 00:18:54,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-01 00:18:54,696 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-01 00:18:54,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-01 00:18:54,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-01 00:18:54,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-01 00:18:54,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af3516c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54, skipping insertion in model container
[2022-02-01 00:18:54,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-01 00:18:54,718 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-01 00:18:54,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0970a.c[4903,4916]
[2022-02-01 00:18:54,852 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-01 00:18:54,857 INFO L203 MainTranslator]: Completed pre-run
[2022-02-01 00:18:54,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0970a.c[4903,4916]
[2022-02-01 00:18:54,883 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-01 00:18:54,892 INFO L208 MainTranslator]: Completed translation
[2022-02-01 00:18:54,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54 WrapperNode
[2022-02-01 00:18:54,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-01 00:18:54,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-01 00:18:54,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-01 00:18:54,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-01 00:18:54,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-01 00:18:54,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-01 00:18:54,925 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-01 00:18:54,925 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-01 00:18:54,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (1/1) ...
[2022-02-01 00:18:54,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-01 00:18:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-01 00:18:54,956 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)
[2022-02-01 00:18:54,961 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
[2022-02-01 00:18:54,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double
[2022-02-01 00:18:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-02-01 00:18:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-02-01 00:18:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-01 00:18:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-01 00:18:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-01 00:18:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-01 00:18:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-01 00:18:55,080 INFO L234 CfgBuilder]: Building ICFG
[2022-02-01 00:18:55,082 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-01 00:18:55,293 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-01 00:18:55,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-01 00:18:55,298 INFO L299 CfgBuilder]: Removed 14 assume(true) statements.
[2022-02-01 00:18:55,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:55 BoogieIcfgContainer
[2022-02-01 00:18:55,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-01 00:18:55,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-01 00:18:55,300 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-01 00:18:55,303 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-01 00:18:55,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:18:54" (1/3) ...
[2022-02-01 00:18:55,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a397a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:55, skipping insertion in model container
[2022-02-01 00:18:55,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:54" (2/3) ...
[2022-02-01 00:18:55,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a397a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:55, skipping insertion in model container
[2022-02-01 00:18:55,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:55" (3/3) ...
[2022-02-01 00:18:55,304 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c
[2022-02-01 00:18:55,308 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2022-02-01 00:18:55,308 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-01 00:18:55,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-01 00:18:55,340 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=QVASR
[2022-02-01 00:18:55,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-01 00:18:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 55 states have (on average 1.6) internal successors, (88), 56 states have internal predecessors, (88), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-02-01 00:18:55,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2022-02-01 00:18:55,356 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-01 00:18:55,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-01 00:18:55,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-01 00:18:55,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-01 00:18:55,360 INFO L85 PathProgramCache]: Analyzing trace with hash 253932810, now seen corresponding path program 1 times
[2022-02-01 00:18:55,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-01 00:18:55,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1739928932]
[2022-02-01 00:18:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-01 00:18:55,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-01 00:18:55,408 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-01 00:18:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-01 00:18:55,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-01 00:18:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-01 00:18:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2022-02-01 00:18:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-01 00:18:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2022-02-01 00:18:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-01 00:18:55,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-01 00:18:55,611 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2022-02-01 00:18:55,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1739928932]
[2022-02-01 00:18:55,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1739928932] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-01 00:18:55,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-01 00:18:55,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-01 00:18:55,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003961420]
[2022-02-01 00:18:55,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-01 00:18:55,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-01 00:18:55,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2022-02-01 00:18:55,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-01 00:18:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-01 00:18:55,640 INFO L87 Difference]: Start difference. First operand has 69 states, 55 states have (on average 1.6) internal successors, (88), 56 states have internal predecessors, (88), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-02-01 00:18:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-01 00:18:55,985 INFO L93 Difference]: Finished difference Result 133 states and 197 transitions.
[2022-02-01 00:18:55,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-02-01 00:18:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2022-02-01 00:18:55,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-01 00:18:55,994 INFO L225 Difference]: With dead ends: 133
[2022-02-01 00:18:55,995 INFO L226 Difference]: Without dead ends: 64
[2022-02-01 00:18:55,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-01 00:18:55,999 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 80 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-02-01 00:18:56,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 80 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-02-01 00:18:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2022-02-01 00:18:56,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2022-02-01 00:18:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-02-01 00:18:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions.
[2022-02-01 00:18:56,036 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 24
[2022-02-01 00:18:56,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-01 00:18:56,036 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions.
[2022-02-01 00:18:56,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-02-01 00:18:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions.
[2022-02-01 00:18:56,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-02-01 00:18:56,037 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-01 00:18:56,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-01 00:18:56,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-01 00:18:56,037 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-01 00:18:56,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-01 00:18:56,038 INFO L85 PathProgramCache]: Analyzing trace with hash 943031577, now seen corresponding path program 1 times
[2022-02-01 00:18:56,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2022-02-01 00:18:56,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649296962]
[2022-02-01 00:18:56,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-01 00:18:56,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-01 00:18:56,040 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2022-02-01 00:18:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-01 00:18:56,098 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-01 00:18:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-01 00:18:56,173 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2022-02-01 00:18:56,173 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2022-02-01 00:18:56,179 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-02-01 00:18:56,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-01 00:18:56,183 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-02-01 00:18:56,185 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-01 00:18:56,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:18:56 BoogieIcfgContainer
[2022-02-01 00:18:56,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-01 00:18:56,200 INFO L158 Benchmark]: Toolchain (without parser) took 1503.49ms. Allocated memory is still 199.2MB. Free memory was 144.3MB in the beginning and 75.4MB in the end (delta: 69.0MB). Peak memory consumption was 68.6MB. Max. memory is 8.0GB.
[2022-02-01 00:18:56,200 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 199.2MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-01 00:18:56,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.88ms. Allocated memory is still 199.2MB. Free memory was 144.2MB in the beginning and 166.6MB in the end (delta: -22.4MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB.
[2022-02-01 00:18:56,202 INFO L158 Benchmark]: Boogie Preprocessor took 30.79ms. Allocated memory is still 199.2MB. Free memory was 166.6MB in the beginning and 164.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-02-01 00:18:56,203 INFO L158 Benchmark]: RCFGBuilder took 374.67ms. Allocated memory is still 199.2MB. Free memory was 164.5MB in the beginning and 146.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB.
[2022-02-01 00:18:56,205 INFO L158 Benchmark]: TraceAbstraction took 898.51ms. Allocated memory is still 199.2MB. Free memory was 146.2MB in the beginning and 75.4MB in the end (delta: 70.8MB). Peak memory consumption was 70.3MB. Max. memory is 8.0GB.
[2022-02-01 00:18:56,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.08ms. Allocated memory is still 199.2MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 194.88ms. Allocated memory is still 199.2MB. Free memory was 144.2MB in the beginning and 166.6MB in the end (delta: -22.4MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 30.79ms. Allocated memory is still 199.2MB. Free memory was 166.6MB in the beginning and 164.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 374.67ms. Allocated memory is still 199.2MB. Free memory was 164.5MB in the beginning and 146.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB.
* TraceAbstraction took 898.51ms. Allocated memory is still 199.2MB. Free memory was 146.2MB in the beginning and 75.4MB in the end (delta: 70.8MB). Peak memory consumption was 70.3MB. 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
- UnprovableResult [Line: 190]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of bitwiseOr at line 134, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 135, overapproximation of someBinaryDOUBLEComparisonOperation at line 163.
Possible FailurePath:
[L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01,
ln2_lo_log = 1.90821492927058770002e-10,
two54_log = 1.80143985094819840000e+16,
Lg1_log = 6.666666666666735130e-01,
Lg2_log = 3.999999999940941908e-01,
Lg3_log = 2.857142874366239149e-01,
Lg4_log = 2.222219843214978396e-01,
Lg5_log = 1.818357216161805012e-01,
Lg6_log = 1.531383769920937332e-01,
Lg7_log = 1.479819860511658591e-01;
[L30] static const double zero = 0.0;
[L113-L116] static const double two54_log10 = 1.80143985094819840000e+16,
ivln10_log10 = 4.34294481903251816668e-01,
log10_2hi_log10 = 3.01029995663611771306e-01,
log10_2lo_log10 = 3.69423907715893078616e-13;
[L118] static const double zero_log10 = 0.0;
[L182] double x = __VERIFIER_nondet_double();
[L184] x < 0 && isfinite_double(x)
[L184] CALL, EXPR isfinite_double(x)
[L166] __int32_t hx;
[L168] ieee_double_shape_type gh_u;
[L169] gh_u.value = (x)
[L170] EXPR gh_u.parts.msw
[L170] (hx) = gh_u.parts.msw
[L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31);
[L184] RET, EXPR isfinite_double(x)
[L184] x < 0 && isfinite_double(x)
[L184] COND TRUE x < 0 && isfinite_double(x)
[L186] CALL, EXPR __ieee754_log10(x)
[L121] double y, z;
[L122] __int32_t i, k, hx;
[L123] __uint32_t lx;
[L126] ieee_double_shape_type ew_u;
[L127] ew_u.value = (x)
[L128] EXPR ew_u.parts.msw
[L128] (hx) = ew_u.parts.msw
[L129] EXPR ew_u.parts.lsw
[L129] (lx) = ew_u.parts.lsw
[L132] k = 0
[L133] COND TRUE hx < 0x00100000
[L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0
[L135] return -two54_log10 / zero_log10;
[L186] RET, EXPR __ieee754_log10(x)
[L186] double res = __ieee754_log10(x);
[L189] CALL, EXPR isnan_double(res)
[L163] return x != x;
[L189] RET, EXPR isnan_double(res)
[L189] COND TRUE !isnan_double(res)
[L190] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 8 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 75 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred 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: No data available, 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-02-01 00:18:56,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...