/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float12.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-b8ad66e
[2020-10-23 20:23:49,837 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-23 20:23:49,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-23 20:23:49,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-23 20:23:49,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-23 20:23:49,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-23 20:23:49,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-23 20:23:49,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-23 20:23:49,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-23 20:23:49,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-23 20:23:49,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-10-23 20:23:49,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-23 20:23:49,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-23 20:23:49,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-23 20:23:49,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-23 20:23:49,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-23 20:23:49,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-23 20:23:49,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-23 20:23:49,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-23 20:23:49,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-23 20:23:49,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-23 20:23:49,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-23 20:23:49,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-23 20:23:49,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-23 20:23:49,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-23 20:23:49,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-23 20:23:49,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-23 20:23:49,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-23 20:23:49,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-23 20:23:49,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-23 20:23:49,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-23 20:23:49,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-23 20:23:49,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-23 20:23:49,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-23 20:23:49,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-23 20:23:49,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-10-23 20:23:49,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-23 20:23:49,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-23 20:23:49,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-10-23 20:23:49,987 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-23 20:23:49,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-23 20:23:49,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-23 20:23:49,989 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-23 20:23:49,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-23 20:23:49,990 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-23 20:23:49,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-23 20:23:49,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-23 20:23:49,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-23 20:23:49,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-23 20:23:49,991 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-23 20:23:49,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-23 20:23:49,991 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-23 20:23:49,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-23 20:23:49,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-23 20:23:49,992 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-10-23 20:23:49,992 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-23 20:23:49,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-23 20:23:49,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-23 20:23:49,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-23 20:23:49,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-10-23 20:23:49,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-23 20:23:49,993 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-10-23 20:23:50,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-23 20:23:50,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-23 20:23:50,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-23 20:23:50,395 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-23 20:23:50,396 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-23 20:23:50,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float12.c
[2020-10-23 20:23:50,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e439120b0/23da6f856e1d49e6b07eaad0076ba2d1/FLAG0c7e6162e
[2020-10-23 20:23:51,034 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-23 20:23:51,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float12.c
[2020-10-23 20:23:51,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e439120b0/23da6f856e1d49e6b07eaad0076ba2d1/FLAG0c7e6162e
[2020-10-23 20:23:51,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e439120b0/23da6f856e1d49e6b07eaad0076ba2d1
[2020-10-23 20:23:51,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-23 20:23:51,409 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-23 20:23:51,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-23 20:23:51,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-23 20:23:51,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-23 20:23:51,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6885e876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51, skipping insertion in model container
[2020-10-23 20:23:51,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-23 20:23:51,443 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-23 20:23:51,631 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-23 20:23:51,642 INFO L203 MainTranslator]: Completed pre-run
[2020-10-23 20:23:51,659 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-23 20:23:51,677 INFO L208 MainTranslator]: Completed translation
[2020-10-23 20:23:51,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51 WrapperNode
[2020-10-23 20:23:51,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-23 20:23:51,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-23 20:23:51,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-23 20:23:51,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-23 20:23:51,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
[2020-10-23 20:23:51,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-23 20:23:51,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-23 20:23:51,715 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-23 20:23:51,715 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-23 20:23:51,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-23 20:23:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-23 20:23:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-23 20:23:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-23 20:23:51,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-10-23 20:23:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-10-23 20:23:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-23 20:23:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-23 20:23:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-23 20:23:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float
[2020-10-23 20:23:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2020-10-23 20:23:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-10-23 20:23:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-23 20:23:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-23 20:23:51,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-23 20:23:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-23 20:23:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-10-23 20:23:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-23 20:23:52,295 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-23 20:23:52,295 INFO L298 CfgBuilder]: Removed 0 assume(true) statements.
[2020-10-23 20:23:52,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:23:52 BoogieIcfgContainer
[2020-10-23 20:23:52,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-23 20:23:52,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-23 20:23:52,304 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-23 20:23:52,307 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-23 20:23:52,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:23:51" (1/3) ...
[2020-10-23 20:23:52,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a464124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:23:52, skipping insertion in model container
[2020-10-23 20:23:52,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:51" (2/3) ...
[2020-10-23 20:23:52,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a464124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:23:52, skipping insertion in model container
[2020-10-23 20:23:52,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:23:52" (3/3) ...
[2020-10-23 20:23:52,312 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c
[2020-10-23 20:23:52,327 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-23 20:23:52,336 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-23 20:23:52,351 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-23 20:23:52,389 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-23 20:23:52,389 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-23 20:23:52,389 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-10-23 20:23:52,389 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-23 20:23:52,389 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-23 20:23:52,390 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-23 20:23:52,390 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-23 20:23:52,390 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-23 20:23:52,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states.
[2020-10-23 20:23:52,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-10-23 20:23:52,427 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-23 20:23:52,428 INFO L422 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]
[2020-10-23 20:23:52,428 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-23 20:23:52,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-23 20:23:52,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1361349702, now seen corresponding path program 1 times
[2020-10-23 20:23:52,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-23 20:23:52,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899784438]
[2020-10-23 20:23:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-23 20:23:52,544 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-10-23 20:23:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-23 20:23:52,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-23 20:23:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-23 20:23:52,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-23 20:23:52,721 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-23 20:23:52,722 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-10-23 20:23:52,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-23 20:23:52,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:23:52 BoogieIcfgContainer
[2020-10-23 20:23:52,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-23 20:23:52,741 INFO L168 Benchmark]: Toolchain (without parser) took 1335.09 ms. Allocated memory is still 167.8 MB. Free memory was 145.0 MB in the beginning and 132.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB.
[2020-10-23 20:23:52,741 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-23 20:23:52,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.15 ms. Allocated memory is still 167.8 MB. Free memory was 144.3 MB in the beginning and 134.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2020-10-23 20:23:52,744 INFO L168 Benchmark]: Boogie Preprocessor took 35.50 ms. Allocated memory is still 167.8 MB. Free memory was 134.9 MB in the beginning and 133.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2020-10-23 20:23:52,745 INFO L168 Benchmark]: RCFGBuilder took 583.74 ms. Allocated memory is still 167.8 MB. Free memory was 133.6 MB in the beginning and 145.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB.
[2020-10-23 20:23:52,746 INFO L168 Benchmark]: TraceAbstraction took 436.70 ms. Allocated memory is still 167.8 MB. Free memory was 145.3 MB in the beginning and 132.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
[2020-10-23 20:23:52,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 267.15 ms. Allocated memory is still 167.8 MB. Free memory was 144.3 MB in the beginning and 134.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 35.50 ms. Allocated memory is still 167.8 MB. Free memory was 134.9 MB in the beginning and 133.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 583.74 ms. Allocated memory is still 167.8 MB. Free memory was 133.6 MB in the beginning and 145.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 436.70 ms. Allocated memory is still 167.8 MB. Free memory was 145.3 MB in the beginning and 132.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 15.
Possible FailurePath:
[L8] float f = __VERIFIER_nondet_float();
[L9] double d;
[L10] unsigned char x = __VERIFIER_nondet_uchar();
[L12] d=f
[L14] COND TRUE f==x
[L15] COND TRUE !(d==x)
[L15] CALL reach_error()
[L3] __assert_fail("0", "float12.c", 3, "reach_error")
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, 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
Received shutdown request...