/usr/bin/java -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_1091.c
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This is Ultimate 0.1.25-3af5e1f
[2020-09-04 12:58:25,820 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-04 12:58:25,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-04 12:58:25,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-04 12:58:25,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-04 12:58:25,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-04 12:58:25,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-04 12:58:25,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-04 12:58:25,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2020-09-04 12:58:25,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-04 12:58:25,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
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[2020-09-04 12:58:25,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-04 12:58:25,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-04 12:58:25,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-04 12:58:25,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-04 12:58:25,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-04 12:58:25,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-04 12:58:25,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2020-09-04 12:58:25,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-09-04 12:58:25,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-04 12:58:25,949 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-04 12:58:25,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-04 12:58:25,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-04 12:58:25,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-04 12:58:25,952 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-04 12:58:25,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-04 12:58:25,952 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-04 12:58:25,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-04 12:58:25,952 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-04 12:58:25,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-04 12:58:25,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-04 12:58:25,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-04 12:58:25,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-04 12:58:25,955 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-04 12:58:25,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-04 12:58:25,955 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-04 12:58:25,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-04 12:58:25,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-04 12:58:25,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-04 12:58:25,958 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-04 12:58:25,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-04 12:58:25,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 12:58:25,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-04 12:58:25,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-04 12:58:25,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-04 12:58:25,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-04 12:58:25,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-04 12:58:25,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-04 12:58:25,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-04 12:58:25,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-09-04 12:58:26,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-04 12:58:26,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-04 12:58:26,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-04 12:58:26,461 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-04 12:58:26,462 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-04 12:58:26,463 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.c
[2020-09-04 12:58:26,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e2d2960b/a0984fa8ff67401a9663e32040b31c9e/FLAGa67a60c7a
[2020-09-04 12:58:27,120 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-04 12:58:27,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c
[2020-09-04 12:58:27,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e2d2960b/a0984fa8ff67401a9663e32040b31c9e/FLAGa67a60c7a
[2020-09-04 12:58:27,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e2d2960b/a0984fa8ff67401a9663e32040b31c9e
[2020-09-04 12:58:27,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-04 12:58:27,445 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-04 12:58:27,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-04 12:58:27,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-04 12:58:27,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-04 12:58:27,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a477604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27, skipping insertion in model container
[2020-09-04 12:58:27,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-04 12:58:27,493 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-04 12:58:27,720 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 12:58:27,725 INFO L203 MainTranslator]: Completed pre-run
[2020-09-04 12:58:27,761 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 12:58:27,876 INFO L208 MainTranslator]: Completed translation
[2020-09-04 12:58:27,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27 WrapperNode
[2020-09-04 12:58:27,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-04 12:58:27,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-04 12:58:27,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-04 12:58:27,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-04 12:58:27,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
[2020-09-04 12:58:27,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-04 12:58:27,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-04 12:58:27,932 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-04 12:58:27,932 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-04 12:58:27,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-04 12:58:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-04 12:58:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-04 12:58:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-09-04 12:58:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double
[2020-09-04 12:58:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-04 12:58:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-04 12:58:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2020-09-04 12:58:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double
[2020-09-04 12:58:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-04 12:58:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-09-04 12:58:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-04 12:58:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-04 12:58:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-04 12:58:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-09-04 12:58:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-04 12:58:28,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-04 12:58:28,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-04 12:58:28,404 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-04 12:58:28,404 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-04 12:58:28,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:58:28 BoogieIcfgContainer
[2020-09-04 12:58:28,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-04 12:58:28,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-04 12:58:28,411 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-04 12:58:28,415 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-04 12:58:28,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 12:58:27" (1/3) ...
[2020-09-04 12:58:28,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5259947b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:58:28, skipping insertion in model container
[2020-09-04 12:58:28,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 12:58:27" (2/3) ...
[2020-09-04 12:58:28,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5259947b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 12:58:28, skipping insertion in model container
[2020-09-04 12:58:28,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 12:58:28" (3/3) ...
[2020-09-04 12:58:28,419 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c
[2020-09-04 12:58:28,434 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-09-04 12:58:28,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-04 12:58:28,474 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-04 12:58:28,501 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-04 12:58:28,501 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-04 12:58:28,501 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-09-04 12:58:28,501 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-04 12:58:28,502 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-04 12:58:28,502 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-04 12:58:28,502 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-04 12:58:28,502 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-04 12:58:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states.
[2020-09-04 12:58:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-04 12:58:28,530 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 12:58:28,531 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]
[2020-09-04 12:58:28,532 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 12:58:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 12:58:28,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1881433434, now seen corresponding path program 1 times
[2020-09-04 12:58:28,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 12:58:28,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645936436]
[2020-09-04 12:58:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 12:58:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 12:58:28,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 12:58:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 12:58:28,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-04 12:58:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 12:58:28,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2020-09-04 12:58:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 12:58:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 12:58:28,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645936436]
[2020-09-04 12:58:28,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 12:58:28,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-04 12:58:28,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747969078]
[2020-09-04 12:58:28,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-04 12:58:28,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-09-04 12:58:28,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-04 12:58:28,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-04 12:58:28,844 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states.
[2020-09-04 12:58:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 12:58:29,096 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions.
[2020-09-04 12:58:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-04 12:58:29,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23
[2020-09-04 12:58:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 12:58:29,113 INFO L225 Difference]: With dead ends: 86
[2020-09-04 12:58:29,113 INFO L226 Difference]: Without dead ends: 43
[2020-09-04 12:58:29,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-04 12:58:29,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2020-09-04 12:58:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2020-09-04 12:58:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states.
[2020-09-04 12:58:29,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions.
[2020-09-04 12:58:29,170 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23
[2020-09-04 12:58:29,170 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 12:58:29,170 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions.
[2020-09-04 12:58:29,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-04 12:58:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions.
[2020-09-04 12:58:29,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-09-04 12:58:29,172 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 12:58:29,172 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]
[2020-09-04 12:58:29,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-04 12:58:29,173 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 12:58:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 12:58:29,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1135906069, now seen corresponding path program 1 times
[2020-09-04 12:58:29,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-09-04 12:58:29,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501473865]
[2020-09-04 12:58:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 12:58:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-04 12:58:29,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-09-04 12:58:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-04 12:58:29,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-09-04 12:58:29,306 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-09-04 12:58:29,307 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-04 12:58:29,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-04 12:58:29,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 12:58:29 BoogieIcfgContainer
[2020-09-04 12:58:29,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-04 12:58:29,348 INFO L168 Benchmark]: Toolchain (without parser) took 1902.28 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.6 MB in the beginning and 105.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB.
[2020-09-04 12:58:29,349 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-04 12:58:29,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.55 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.4 MB in the beginning and 181.3 MB in the end (delta: -78.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB.
[2020-09-04 12:58:29,351 INFO L168 Benchmark]: Boogie Preprocessor took 53.86 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 178.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB.
[2020-09-04 12:58:29,352 INFO L168 Benchmark]: RCFGBuilder took 477.74 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 156.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
[2020-09-04 12:58:29,353 INFO L168 Benchmark]: TraceAbstraction took 934.37 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 105.3 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB.
[2020-09-04 12:58:29,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.58 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 431.55 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.4 MB in the beginning and 181.3 MB in the end (delta: -78.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 53.86 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 178.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 477.74 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 156.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 934.37 ms. Allocated memory is still 202.4 MB. Free memory was 155.8 MB in the beginning and 105.3 MB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 95]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15.
Possible FailurePath:
[L17] static const double huge_ceil = 1.0e300;
VAL [\old(huge_ceil)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]
[L90] double x = 0.0 / 0.0;
VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]
[L91] CALL, EXPR ceil_double(x)
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]
[L20] __int32_t i0, i1, j0;
[L21] __uint32_t i, j;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L23] ieee_double_shape_type ew_u;
[L24] ew_u.value = (x)
[L25] EXPR ew_u.parts.msw
[L25] (i0) = ew_u.parts.msw
[L26] EXPR ew_u.parts.lsw
[L26] (i1) = ew_u.parts.lsw
[L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L29] COND TRUE j0 < 20
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L30] COND FALSE !(j0 < 0)
[L41] i = (0x000fffff) >> j0
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L42] COND TRUE ((i0 & i) | i1) == 0
[L43] return x;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, \result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L91] RET, EXPR ceil_double(x)
VAL [ceil_double(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L91] double res = ceil_double(x);
[L94] CALL, EXPR isnan_double(res)
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]
[L15] return x != x;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L94] RET, EXPR isnan_double(res)
VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
[L94] COND TRUE !isnan_double(res)
[L95] __VERIFIER_error()
VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...