/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-b7b32d2
[2021-02-21 15:47:55,667 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-02-21 15:47:55,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-02-21 15:47:55,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-02-21 15:47:55,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-02-21 15:47:55,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-02-21 15:47:55,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-02-21 15:47:55,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-02-21 15:47:55,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-02-21 15:47:55,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-02-21 15:47:55,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-02-21 15:47:55,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-02-21 15:47:55,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-02-21 15:47:55,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-02-21 15:47:55,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-02-21 15:47:55,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-02-21 15:47:55,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-02-21 15:47:55,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-02-21 15:47:55,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-02-21 15:47:55,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-02-21 15:47:55,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-02-21 15:47:55,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-02-21 15:47:55,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-02-21 15:47:55,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-02-21 15:47:55,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-02-21 15:47:55,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-02-21 15:47:55,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2021-02-21 15:47:55,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-02-21 15:47:55,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2021-02-21 15:47:55,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2021-02-21 15:47:55,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-02-21 15:47:55,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2021-02-21 15:47:55,874 INFO L113 SettingsManager]: Loading preferences was successful
[2021-02-21 15:47:55,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-02-21 15:47:55,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-02-21 15:47:55,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-02-21 15:47:55,878 INFO L138 SettingsManager]: * Use SBE=true
[2021-02-21 15:47:55,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-02-21 15:47:55,878 INFO L138 SettingsManager]: * sizeof long=4
[2021-02-21 15:47:55,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-02-21 15:47:55,879 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-02-21 15:47:55,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-02-21 15:47:55,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-02-21 15:47:55,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-02-21 15:47:55,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-02-21 15:47:55,881 INFO L138 SettingsManager]: * sizeof long double=12
[2021-02-21 15:47:55,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-02-21 15:47:55,881 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-02-21 15:47:55,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-02-21 15:47:55,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-02-21 15:47:55,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-02-21 15:47:55,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-02-21 15:47:55,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-02-21 15:47:55,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-02-21 15:47:55,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-02-21 15:47:55,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-02-21 15:47:55,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-02-21 15:47:55,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-02-21 15:47:55,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-02-21 15:47:55,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-02-21 15:47:55,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-02-21 15:47:56,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-02-21 15:47:56,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-02-21 15:47:56,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-02-21 15:47:56,393 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-02-21 15:47:56,393 INFO L275 PluginConnector]: CDTParser initialized
[2021-02-21 15:47:56,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c
[2021-02-21 15:47:56,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af3575c3/cf2b1f8a65ec4679b5267d5cae584da6/FLAGd3e19e1e9
[2021-02-21 15:47:57,182 INFO L306 CDTParser]: Found 1 translation units.
[2021-02-21 15:47:57,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c
[2021-02-21 15:47:57,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af3575c3/cf2b1f8a65ec4679b5267d5cae584da6/FLAGd3e19e1e9
[2021-02-21 15:47:57,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af3575c3/cf2b1f8a65ec4679b5267d5cae584da6
[2021-02-21 15:47:57,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-02-21 15:47:57,570 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-02-21 15:47:57,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-02-21 15:47:57,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-02-21 15:47:57,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-02-21 15:47:57,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:57,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd48785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57, skipping insertion in model container
[2021-02-21 15:47:57,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:57,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-02-21 15:47:57,629 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-02-21 15:47:57,915 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c[2159,2172]
[2021-02-21 15:47:57,920 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-21 15:47:57,932 INFO L203 MainTranslator]: Completed pre-run
[2021-02-21 15:47:57,961 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c[2159,2172]
[2021-02-21 15:47:57,962 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-21 15:47:57,980 INFO L208 MainTranslator]: Completed translation
[2021-02-21 15:47:57,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57 WrapperNode
[2021-02-21 15:47:57,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-02-21 15:47:57,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-02-21 15:47:57,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-02-21 15:47:57,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-02-21 15:47:57,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:57,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:58,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:58,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:58,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:58,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:58,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (1/1) ...
[2021-02-21 15:47:58,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-02-21 15:47:58,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-02-21 15:47:58,042 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-02-21 15:47:58,042 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-02-21 15:47:58,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (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
[2021-02-21 15:47:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-02-21 15:47:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-02-21 15:47:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-02-21 15:47:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float
[2021-02-21 15:47:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float
[2021-02-21 15:47:58,145 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-02-21 15:47:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-02-21 15:47:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-02-21 15:47:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-02-21 15:47:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-02-21 15:47:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float
[2021-02-21 15:47:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2021-02-21 15:47:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-02-21 15:47:58,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-02-21 15:47:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-02-21 15:47:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2021-02-21 15:47:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float
[2021-02-21 15:47:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-02-21 15:47:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-02-21 15:47:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-02-21 15:47:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-02-21 15:47:58,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-02-21 15:47:58,693 INFO L299 CfgBuilder]: Removed 14 assume(true) statements.
[2021-02-21 15:47:58,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:47:58 BoogieIcfgContainer
[2021-02-21 15:47:58,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-02-21 15:47:58,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-02-21 15:47:58,697 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-02-21 15:47:58,700 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-02-21 15:47:58,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:47:57" (1/3) ...
[2021-02-21 15:47:58,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be785f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:47:58, skipping insertion in model container
[2021-02-21 15:47:58,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:47:57" (2/3) ...
[2021-02-21 15:47:58,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be785f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:47:58, skipping insertion in model container
[2021-02-21 15:47:58,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:47:58" (3/3) ...
[2021-02-21 15:47:58,704 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c
[2021-02-21 15:47:58,711 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-02-21 15:47:58,720 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-02-21 15:47:58,739 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-02-21 15:47:58,766 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-02-21 15:47:58,767 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-02-21 15:47:58,767 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-02-21 15:47:58,767 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-02-21 15:47:58,767 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-02-21 15:47:58,767 INFO L381 AbstractCegarLoop]: Difference is false
[2021-02-21 15:47:58,768 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-02-21 15:47:58,768 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-02-21 15:47:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states.
[2021-02-21 15:47:58,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2021-02-21 15:47:58,792 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:47:58,793 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, 1, 1, 1]
[2021-02-21 15:47:58,793 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:47:58,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:47:58,800 INFO L82 PathProgramCache]: Analyzing trace with hash -356756985, now seen corresponding path program 1 times
[2021-02-21 15:47:58,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:47:58,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742830325]
[2021-02-21 15:47:58,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:47:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:58,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:58,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:58,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:58,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:47:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:47:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2021-02-21 15:47:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:47:59,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742830325]
[2021-02-21 15:47:59,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:47:59,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-02-21 15:47:59,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334832401]
[2021-02-21 15:47:59,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-02-21 15:47:59,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:47:59,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-02-21 15:47:59,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-02-21 15:47:59,198 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 4 states.
[2021-02-21 15:47:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:47:59,452 INFO L93 Difference]: Finished difference Result 88 states and 126 transitions.
[2021-02-21 15:47:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-02-21 15:47:59,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25
[2021-02-21 15:47:59,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:47:59,465 INFO L225 Difference]: With dead ends: 88
[2021-02-21 15:47:59,465 INFO L226 Difference]: Without dead ends: 44
[2021-02-21 15:47:59,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-02-21 15:47:59,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2021-02-21 15:47:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2021-02-21 15:47:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states.
[2021-02-21 15:47:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions.
[2021-02-21 15:47:59,517 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 25
[2021-02-21 15:47:59,518 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:47:59,518 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions.
[2021-02-21 15:47:59,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2021-02-21 15:47:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions.
[2021-02-21 15:47:59,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-02-21 15:47:59,520 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:47:59,521 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, 1, 1, 1, 1, 1]
[2021-02-21 15:47:59,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-02-21 15:47:59,521 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:47:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:47:59,522 INFO L82 PathProgramCache]: Analyzing trace with hash 2084032678, now seen corresponding path program 1 times
[2021-02-21 15:47:59,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:47:59,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880465319]
[2021-02-21 15:47:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:47:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2
[2021-02-21 15:47:59,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:47:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:47:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2021-02-21 15:47:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:47:59,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:47:59,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:47:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:47:59,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880465319]
[2021-02-21 15:47:59,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:47:59,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-02-21 15:47:59,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947971175]
[2021-02-21 15:47:59,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-02-21 15:47:59,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:47:59,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-02-21 15:47:59,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-02-21 15:47:59,737 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states.
[2021-02-21 15:47:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:47:59,932 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions.
[2021-02-21 15:47:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-02-21 15:47:59,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27
[2021-02-21 15:47:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:47:59,945 INFO L225 Difference]: With dead ends: 47
[2021-02-21 15:47:59,946 INFO L226 Difference]: Without dead ends: 44
[2021-02-21 15:47:59,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-02-21 15:47:59,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2021-02-21 15:47:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2021-02-21 15:47:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states.
[2021-02-21 15:47:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions.
[2021-02-21 15:47:59,964 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 27
[2021-02-21 15:47:59,965 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:47:59,966 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions.
[2021-02-21 15:47:59,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2021-02-21 15:47:59,966 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions.
[2021-02-21 15:47:59,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2021-02-21 15:47:59,967 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:47:59,968 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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]
[2021-02-21 15:47:59,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-02-21 15:47:59,968 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:47:59,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:47:59,969 INFO L82 PathProgramCache]: Analyzing trace with hash -513749621, now seen corresponding path program 1 times
[2021-02-21 15:47:59,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:47:59,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103793899]
[2021-02-21 15:47:59,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:48:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-21 15:48:00,044 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-21 15:48:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-21 15:48:00,101 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-21 15:48:00,139 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-02-21 15:48:00,139 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-02-21 15:48:00,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-02-21 15:48:00,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:48:00 BoogieIcfgContainer
[2021-02-21 15:48:00,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-02-21 15:48:00,217 INFO L168 Benchmark]: Toolchain (without parser) took 2660.80 ms. Allocated memory was 152.0 MB in the beginning and 187.7 MB in the end (delta: 35.7 MB). Free memory was 126.2 MB in the beginning and 149.6 MB in the end (delta: -23.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB.
[2021-02-21 15:48:00,218 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-21 15:48:00,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.15 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 114.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB.
[2021-02-21 15:48:00,220 INFO L168 Benchmark]: Boogie Preprocessor took 58.58 ms. Allocated memory is still 152.0 MB. Free memory was 114.3 MB in the beginning and 112.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-02-21 15:48:00,221 INFO L168 Benchmark]: RCFGBuilder took 653.13 ms. Allocated memory is still 152.0 MB. Free memory was 112.3 MB in the beginning and 124.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB.
[2021-02-21 15:48:00,222 INFO L168 Benchmark]: TraceAbstraction took 1518.81 ms. Allocated memory was 152.0 MB in the beginning and 187.7 MB in the end (delta: 35.7 MB). Free memory was 124.1 MB in the beginning and 149.6 MB in the end (delta: -25.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB.
[2021-02-21 15:48:00,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 406.15 ms. Allocated memory is still 152.0 MB. Free memory was 125.1 MB in the beginning and 114.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 58.58 ms. Allocated memory is still 152.0 MB. Free memory was 114.3 MB in the beginning and 112.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 653.13 ms. Allocated memory is still 152.0 MB. Free memory was 112.3 MB in the beginning and 124.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 1518.81 ms. Allocated memory was 152.0 MB in the beginning and 187.7 MB in the end (delta: 35.7 MB). Free memory was 124.1 MB in the beginning and 149.6 MB in the end (delta: -25.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 88]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 82, overapproximation of bitwiseAnd at line 28.
Possible FailurePath:
[L13] static const float one_modf = 1.0;
VAL [\old(one_modf)=4294967312, one_modf=1]
[L82] float x = 0.0f / 0.0f;
[L83] float iptr;
VAL [iptr={8:0}, one_modf=1]
[L84] CALL, EXPR modf_float(x, &iptr)
VAL [\old(x)=4294967310, iptr={8:0}, one_modf=1]
[L16] __int32_t i0, j0;
[L17] __uint32_t i;
VAL [\old(x)=4294967310, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967310]
[L19] ieee_float_shape_type gf_u;
[L20] gf_u.value = (x)
[L21] EXPR gf_u.word
[L21] (i0) = gf_u.word
[L23] j0 = ((i0 >> 23) & 0xff) - 0x7f
VAL [\old(x)=4294967310, i0=10, iptr={8:0}, iptr={8:0}, one_modf=1, x=4294967310]
[L24] COND TRUE j0 < 23
VAL [\old(x)=4294967310, i0=10, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=4294967310]
[L25] COND TRUE j0 < 0
VAL [\old(x)=4294967310, i0=10, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=4294967310]
[L27] ieee_float_shape_type sf_u;
[L28] sf_u.word = (i0 & 0x80000000)
[L29] EXPR sf_u.value
[L29] (*iptr) = sf_u.value
[L31] return x;
VAL [\old(x)=4294967310, \result=4294967310, i0=10, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=4294967310]
[L84] RET, EXPR modf_float(x, &iptr)
VAL [iptr={8:0}, modf_float(x, &iptr)=4294967310, one_modf=1, x=4294967310]
[L84] float res = modf_float(x, &iptr);
[L87] EXPR \read(iptr)
VAL [\read(iptr)=4294967319, iptr={8:0}, one_modf=1, res=4294967310, x=4294967310]
[L87] CALL, EXPR isnan_float(iptr)
VAL [\old(x)=4294967319, one_modf=1]
[L75] return x != x;
VAL [\old(x)=4294967319, \result=1, one_modf=1, x=4294967319]
[L87] RET, EXPR isnan_float(iptr)
VAL [\read(iptr)=4294967319, iptr={8:0}, isnan_float(iptr)=1, one_modf=1, res=4294967310, x=4294967310]
[L87] isnan_float(iptr) && !isnan_float(res)
VAL [\read(iptr)=4294967319, iptr={8:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1, res=4294967310, x=4294967310]
[L87] CALL, EXPR isnan_float(res)
VAL [\old(x)=4294967310, one_modf=1]
[L75] return x != x;
VAL [\old(x)=4294967310, \result=0, one_modf=1, x=4294967310]
[L87] RET, EXPR isnan_float(res)
VAL [\read(iptr)=4294967319, iptr={8:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967310, x=4294967310]
[L87] isnan_float(iptr) && !isnan_float(res)
VAL [\read(iptr)=4294967319, iptr={8:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967310, x=4294967310]
[L87] COND TRUE isnan_float(iptr) && !isnan_float(res)
[L88] reach_error()
VAL [iptr={8:0}, one_modf=1, res=4294967310, x=4294967310]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 12 SDslu, 98 SDs, 0 SdLazy, 123 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 3528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...