/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/double_req_bl_1032a.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-267fbe0
[2020-07-17 22:03:13,965 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-17 22:03:13,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-17 22:03:13,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-17 22:03:13,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-17 22:03:13,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-17 22:03:13,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-17 22:03:13,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
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[2020-07-17 22:03:14,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
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[2020-07-17 22:03:14,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-17 22:03:14,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-17 22:03:14,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-17 22:03:14,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-17 22:03:14,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-17 22:03:14,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-17 22:03:14,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2020-07-17 22:03:14,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2020-07-17 22:03:14,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-17 22:03:14,051 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
[2020-07-17 22:03:14,087 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-17 22:03:14,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-17 22:03:14,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-17 22:03:14,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-17 22:03:14,091 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-17 22:03:14,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-17 22:03:14,091 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-17 22:03:14,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-17 22:03:14,091 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-17 22:03:14,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-17 22:03:14,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-17 22:03:14,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-17 22:03:14,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-17 22:03:14,095 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-17 22:03:14,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-17 22:03:14,096 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-17 22:03:14,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-17 22:03:14,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-17 22:03:14,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-17 22:03:14,097 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-17 22:03:14,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-17 22:03:14,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-17 22:03:14,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-17 22:03:14,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-17 22:03:14,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-17 22:03:14,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-17 22:03:14,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-17 22:03:14,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-17 22:03:14,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-17 22:03:14,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-07-17 22:03:14,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-17 22:03:14,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-17 22:03:14,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-17 22:03:14,417 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-17 22:03:14,418 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-17 22:03:14,418 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a.c
[2020-07-17 22:03:14,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5f40733/805165384b1845139d6207c4b1fbe8f0/FLAG674425e86
[2020-07-17 22:03:14,922 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-17 22:03:14,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032a.c
[2020-07-17 22:03:14,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5f40733/805165384b1845139d6207c4b1fbe8f0/FLAG674425e86
[2020-07-17 22:03:15,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5f40733/805165384b1845139d6207c4b1fbe8f0
[2020-07-17 22:03:15,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-17 22:03:15,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-17 22:03:15,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-17 22:03:15,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-17 22:03:15,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-17 22:03:15,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e80fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15, skipping insertion in model container
[2020-07-17 22:03:15,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-17 22:03:15,324 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-17 22:03:15,560 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-17 22:03:15,565 INFO L203 MainTranslator]: Completed pre-run
[2020-07-17 22:03:15,595 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-17 22:03:15,708 INFO L208 MainTranslator]: Completed translation
[2020-07-17 22:03:15,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15 WrapperNode
[2020-07-17 22:03:15,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-17 22:03:15,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-17 22:03:15,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-17 22:03:15,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-17 22:03:15,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (1/1) ...
[2020-07-17 22:03:15,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-17 22:03:15,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-17 22:03:15,782 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-17 22:03:15,782 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-17 22:03:15,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (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
[2020-07-17 22:03:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-17 22:03:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-17 22:03:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-07-17 22:03:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double
[2020-07-17 22:03:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double
[2020-07-17 22:03:15,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-17 22:03:15,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-17 22:03:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2020-07-17 22:03:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure round_double
[2020-07-17 22:03:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-17 22:03:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-07-17 22:03:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-07-17 22:03:15,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-17 22:03:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-07-17 22:03:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-07-17 22:03:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double
[2020-07-17 22:03:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-17 22:03:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-17 22:03:15,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-17 22:03:16,366 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-17 22:03:16,366 INFO L295 CfgBuilder]: Removed 6 assume(true) statements.
[2020-07-17 22:03:16,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:03:16 BoogieIcfgContainer
[2020-07-17 22:03:16,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-17 22:03:16,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-17 22:03:16,372 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-17 22:03:16,375 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-17 22:03:16,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:03:15" (1/3) ...
[2020-07-17 22:03:16,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8e756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:03:16, skipping insertion in model container
[2020-07-17 22:03:16,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:03:15" (2/3) ...
[2020-07-17 22:03:16,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8e756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:03:16, skipping insertion in model container
[2020-07-17 22:03:16,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:03:16" (3/3) ...
[2020-07-17 22:03:16,379 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a.c
[2020-07-17 22:03:16,389 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-07-17 22:03:16,397 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-17 22:03:16,412 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-17 22:03:16,436 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-17 22:03:16,436 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-17 22:03:16,436 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-07-17 22:03:16,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-17 22:03:16,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-17 22:03:16,437 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-17 22:03:16,437 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-17 22:03:16,437 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-17 22:03:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states.
[2020-07-17 22:03:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-07-17 22:03:16,462 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-17 22:03:16,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-17 22:03:16,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-17 22:03:16,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-17 22:03:16,469 INFO L82 PathProgramCache]: Analyzing trace with hash -597726452, now seen corresponding path program 1 times
[2020-07-17 22:03:16,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-07-17 22:03:16,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663384912]
[2020-07-17 22:03:16,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-17 22:03:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-17 22:03:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-17 22:03:16,685 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {46#true} is VALID
[2020-07-17 22:03:16,685 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume true; {46#true} is VALID
[2020-07-17 22:03:16,686 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID
[2020-07-17 22:03:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-17 22:03:16,730 INFO L280 TraceCheckUtils]: 0: Hoare triple {60#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~msw~0;havoc ~exponent_less_1023~0;havoc ~lsw~0; {46#true} is VALID
[2020-07-17 22:03:16,732 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume !true; {47#false} is VALID
[2020-07-17 22:03:16,732 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#false} ~exponent_less_1023~0 := ~bitwiseAnd(~msw~0, 2146435072) / 1048576 - 1023; {47#false} is VALID
[2020-07-17 22:03:16,732 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#false} assume ~exponent_less_1023~0 < 20; {47#false} is VALID
[2020-07-17 22:03:16,733 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#false} assume !(~exponent_less_1023~0 < 0);~exponent_mask~0 := ~shiftRight(1048575, ~exponent_less_1023~0); {47#false} is VALID
[2020-07-17 22:03:16,733 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#false} assume 0 == ~bitwiseAnd(~msw~0, ~exponent_mask~0) % 4294967296 && 0 == ~lsw~0 % 4294967296;#res := ~x; {47#false} is VALID
[2020-07-17 22:03:16,734 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#false} assume true; {47#false} is VALID
[2020-07-17 22:03:16,734 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {47#false} {46#true} #110#return; {47#false} is VALID
[2020-07-17 22:03:16,738 INFO L263 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {59#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID
[2020-07-17 22:03:16,738 INFO L280 TraceCheckUtils]: 1: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {46#true} is VALID
[2020-07-17 22:03:16,739 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID
[2020-07-17 22:03:16,739 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID
[2020-07-17 22:03:16,739 INFO L263 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret11 := main(); {46#true} is VALID
[2020-07-17 22:03:16,740 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#true} ~x~0 := 0.0; {46#true} is VALID
[2020-07-17 22:03:16,743 INFO L263 TraceCheckUtils]: 6: Hoare triple {46#true} call #t~ret8 := round_double(~x~0); {60#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID
[2020-07-17 22:03:16,743 INFO L280 TraceCheckUtils]: 7: Hoare triple {60#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~msw~0;havoc ~exponent_less_1023~0;havoc ~lsw~0; {46#true} is VALID
[2020-07-17 22:03:16,745 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#true} assume !true; {47#false} is VALID
[2020-07-17 22:03:16,745 INFO L280 TraceCheckUtils]: 9: Hoare triple {47#false} ~exponent_less_1023~0 := ~bitwiseAnd(~msw~0, 2146435072) / 1048576 - 1023; {47#false} is VALID
[2020-07-17 22:03:16,746 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#false} assume ~exponent_less_1023~0 < 20; {47#false} is VALID
[2020-07-17 22:03:16,746 INFO L280 TraceCheckUtils]: 11: Hoare triple {47#false} assume !(~exponent_less_1023~0 < 0);~exponent_mask~0 := ~shiftRight(1048575, ~exponent_less_1023~0); {47#false} is VALID
[2020-07-17 22:03:16,746 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#false} assume 0 == ~bitwiseAnd(~msw~0, ~exponent_mask~0) % 4294967296 && 0 == ~lsw~0 % 4294967296;#res := ~x; {47#false} is VALID
[2020-07-17 22:03:16,747 INFO L280 TraceCheckUtils]: 13: Hoare triple {47#false} assume true; {47#false} is VALID
[2020-07-17 22:03:16,747 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {47#false} {46#true} #110#return; {47#false} is VALID
[2020-07-17 22:03:16,748 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#false} ~res~0 := #t~ret8;havoc #t~ret8;#t~short10 := ~someBinaryDOUBLEComparisonOperation(~res~0, 0.0); {47#false} is VALID
[2020-07-17 22:03:16,748 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#false} assume !#t~short10; {47#false} is VALID
[2020-07-17 22:03:16,748 INFO L280 TraceCheckUtils]: 17: Hoare triple {47#false} assume !#t~short10;havoc #t~ret9;havoc #t~short10; {47#false} is VALID
[2020-07-17 22:03:16,749 INFO L280 TraceCheckUtils]: 18: Hoare triple {47#false} assume !false; {47#false} is VALID
[2020-07-17 22:03:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-17 22:03:16,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663384912]
[2020-07-17 22:03:16,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-17 22:03:16,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-07-17 22:03:16,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411368711]
[2020-07-17 22:03:16,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19
[2020-07-17 22:03:16,763 INFO L84 Accepts]: Finished accepts. word is accepted.
[2020-07-17 22:03:16,767 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states.
[2020-07-17 22:03:16,805 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-17 22:03:16,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-07-17 22:03:16,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-07-17 22:03:16,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-07-17 22:03:16,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-07-17 22:03:16,816 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 4 states.
[2020-07-17 22:03:17,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-17 22:03:17,245 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions.
[2020-07-17 22:03:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-07-17 22:03:17,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19
[2020-07-17 22:03:17,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-17 22:03:17,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2020-07-17 22:03:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions.
[2020-07-17 22:03:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2020-07-17 22:03:17,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions.
[2020-07-17 22:03:17,266 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 109 transitions.
[2020-07-17 22:03:17,435 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-17 22:03:17,449 INFO L225 Difference]: With dead ends: 78
[2020-07-17 22:03:17,449 INFO L226 Difference]: Without dead ends: 39
[2020-07-17 22:03:17,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-07-17 22:03:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2020-07-17 22:03:17,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2020-07-17 22:03:17,512 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2020-07-17 22:03:17,513 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states.
[2020-07-17 22:03:17,513 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states.
[2020-07-17 22:03:17,514 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states.
[2020-07-17 22:03:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-17 22:03:17,519 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions.
[2020-07-17 22:03:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions.
[2020-07-17 22:03:17,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-17 22:03:17,520 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2020-07-17 22:03:17,521 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states.
[2020-07-17 22:03:17,521 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states.
[2020-07-17 22:03:17,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-17 22:03:17,526 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions.
[2020-07-17 22:03:17,526 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions.
[2020-07-17 22:03:17,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-17 22:03:17,527 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2020-07-17 22:03:17,527 INFO L88 GeneralOperation]: Finished isEquivalent.
[2020-07-17 22:03:17,528 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2020-07-17 22:03:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2020-07-17 22:03:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions.
[2020-07-17 22:03:17,532 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 19
[2020-07-17 22:03:17,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-17 22:03:17,533 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions.
[2020-07-17 22:03:17,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-07-17 22:03:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions.
[2020-07-17 22:03:17,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-07-17 22:03:17,534 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-17 22:03:17,535 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]
[2020-07-17 22:03:17,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-07-17 22:03:17,535 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-17 22:03:17,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-17 22:03:17,536 INFO L82 PathProgramCache]: Analyzing trace with hash -524929330, now seen corresponding path program 1 times
[2020-07-17 22:03:17,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-07-17 22:03:17,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105322066]
[2020-07-17 22:03:17,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-17 22:03:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-17 22:03:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-17 22:03:17,714 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-07-17 22:03:17,715 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-07-17 22:03:17,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-07-17 22:03:17,743 WARN L170 areAnnotationChecker]: isnan_doubleENTRY has no Hoare annotation
[2020-07-17 22:03:17,743 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation
[2020-07-17 22:03:17,743 WARN L170 areAnnotationChecker]: round_doubleENTRY has no Hoare annotation
[2020-07-17 22:03:17,743 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2020-07-17 22:03:17,745 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2020-07-17 22:03:17,745 WARN L170 areAnnotationChecker]: __signbit_doubleENTRY has no Hoare annotation
[2020-07-17 22:03:17,745 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation
[2020-07-17 22:03:17,745 WARN L170 areAnnotationChecker]: isnan_doubleFINAL has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation
[2020-07-17 22:03:17,746 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation
[2020-07-17 22:03:17,747 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: L87-1 has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: __signbit_doubleFINAL has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation
[2020-07-17 22:03:17,748 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: __signbit_doubleEXIT has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation
[2020-07-17 22:03:17,749 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L90-4 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L90-4 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation
[2020-07-17 22:03:17,750 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation
[2020-07-17 22:03:17,751 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation
[2020-07-17 22:03:17,752 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation
[2020-07-17 22:03:17,752 WARN L170 areAnnotationChecker]: round_doubleFINAL has no Hoare annotation
[2020-07-17 22:03:17,752 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation
[2020-07-17 22:03:17,752 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation
[2020-07-17 22:03:17,752 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation
[2020-07-17 22:03:17,752 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation
[2020-07-17 22:03:17,753 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation
[2020-07-17 22:03:17,753 WARN L170 areAnnotationChecker]: round_doubleEXIT has no Hoare annotation
[2020-07-17 22:03:17,753 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation
[2020-07-17 22:03:17,753 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation
[2020-07-17 22:03:17,753 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation
[2020-07-17 22:03:17,753 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation
[2020-07-17 22:03:17,753 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2020-07-17 22:03:17,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:03:17 BoogieIcfgContainer
[2020-07-17 22:03:17,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-17 22:03:17,760 INFO L168 Benchmark]: Toolchain (without parser) took 2473.53 ms. Allocated memory was 148.4 MB in the beginning and 232.3 MB in the end (delta: 83.9 MB). Free memory was 105.8 MB in the beginning and 127.4 MB in the end (delta: -21.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB.
[2020-07-17 22:03:17,761 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-17 22:03:17,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.51 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 105.4 MB in the beginning and 183.4 MB in the end (delta: -78.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
[2020-07-17 22:03:17,762 INFO L168 Benchmark]: Boogie Preprocessor took 71.41 ms. Allocated memory is still 205.0 MB. Free memory was 183.4 MB in the beginning and 181.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB.
[2020-07-17 22:03:17,763 INFO L168 Benchmark]: RCFGBuilder took 589.03 ms. Allocated memory is still 205.0 MB. Free memory was 180.5 MB in the beginning and 146.6 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB.
[2020-07-17 22:03:17,764 INFO L168 Benchmark]: TraceAbstraction took 1384.49 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 145.9 MB in the beginning and 127.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB.
[2020-07-17 22:03:17,768 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 421.51 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 105.4 MB in the beginning and 183.4 MB in the end (delta: -78.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 71.41 ms. Allocated memory is still 205.0 MB. Free memory was 183.4 MB in the beginning and 181.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 589.03 ms. Allocated memory is still 205.0 MB. Free memory was 180.5 MB in the beginning and 146.6 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1384.49 ms. Allocated memory was 205.0 MB in the beginning and 232.3 MB in the end (delta: 27.3 MB). Free memory was 145.9 MB in the beginning and 127.4 MB in the end (delta: 18.5 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 90, overapproximation of shiftRight at line 34, overapproximation of bitwiseAnd at line 35.
Possible FailurePath:
[L86] double x = 0.0;
VAL [x=0]
[L87] CALL, EXPR round_double(x)
VAL [\old(x)=0]
[L18] __int32_t msw, exponent_less_1023;
[L19] __uint32_t lsw;
VAL [\old(x)=0, x=0]
[L21] ieee_double_shape_type ew_u;
[L22] ew_u.value = (x)
[L23] EXPR ew_u.parts.msw
[L23] (msw) = ew_u.parts.msw
[L24] EXPR ew_u.parts.lsw
[L24] (lsw) = ew_u.parts.lsw
[L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023
VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=-1, x=0]
[L27] COND TRUE exponent_less_1023 < 20
VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=-1, x=0]
[L28] COND FALSE !(exponent_less_1023 < 0)
[L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023;
VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=-1, x=0]
[L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0
[L36] return x;
VAL [\old(x)=0, \result=0, exponent_less_1023=0, lsw=0, msw=-1, x=0]
[L87] RET, EXPR round_double(x)
VAL [round_double(x)=0, x=0]
[L87] double res = round_double(x);
[L90] EXPR res == 0.0 && __signbit_double(res) == 0
VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0]
[L90] COND TRUE !(res == 0.0 && __signbit_double(res) == 0)
[L91] __VERIFIER_error()
VAL [res=0, x=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 40 SDslu, 5 SDs, 0 SdLazy, 50 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...