/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:07:27,304 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:07:27,309 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:07:27,353 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:07:27,354 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:07:27,358 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:07:27,363 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 03:07:27,365 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 03:07:27,370 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 03:07:27,374 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 03:07:27,376 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 03:07:27,377 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 03:07:27,377 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:07:27,378 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:07:27,379 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:07:27,381 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:07:27,382 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:07:27,383 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:07:27,385 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:07:27,387 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:07:27,388 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:07:27,389 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:07:27,391 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:07:27,392 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:07:27,394 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:07:27,394 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:07:27,395 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:07:27,396 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:07:27,396 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 03:07:27,397 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 03:07:27,397 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:07:27,398 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:07:27,399 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:07:27,400 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:07:27,401 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:07:27,401 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 03:07:27,402 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 03:07:27,402 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 03:07:27,403 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 03:07:27,404 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 03:07:27,404 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:07:27,405 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
[2020-09-25 03:07:27,430 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 03:07:27,430 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:07:27,432 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:07:27,432 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 03:07:27,432 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 03:07:27,432 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:07:27,433 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 03:07:27,433 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 03:07:27,433 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 03:07:27,433 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 03:07:27,434 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:07:27,434 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:07:27,434 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:07:27,434 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 03:07:27,434 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 03:07:27,435 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 03:07:27,435 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:07:27,435 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:07:27,435 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 03:07:27,436 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 03:07:27,436 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 03:07:27,436 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:07:27,436 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:07:27,437 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:07:27,437 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:07:27,437 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 03:07:27,437 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:07:27,437 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:07:27,438 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 03:07:27,438 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true;
[2020-09-25 03:07:27,943 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:07:27,962 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:07:27,967 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:07:27,969 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 03:07:27,970 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 03:07:27,971 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c
[2020-09-25 03:07:28,074 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f2c3095/f18d4a1737764583a8dd85343fd25fad/FLAGda84216f8
[2020-09-25 03:07:28,658 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 03:07:28,659 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c
[2020-09-25 03:07:28,668 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f2c3095/f18d4a1737764583a8dd85343fd25fad/FLAGda84216f8
[2020-09-25 03:07:28,975 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f2c3095/f18d4a1737764583a8dd85343fd25fad
[2020-09-25 03:07:28,990 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:07:28,996 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:07:28,997 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:07:28,997 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:07:29,001 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:07:29,003 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:28" (1/1) ...
[2020-09-25 03:07:29,007 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514343ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29, skipping insertion in model container
[2020-09-25 03:07:29,007 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:28" (1/1) ...
[2020-09-25 03:07:29,017 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 03:07:29,047 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:07:29,289 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:07:29,294 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 03:07:29,334 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:07:29,455 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 03:07:29,456 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29 WrapperNode
[2020-09-25 03:07:29,456 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:07:29,457 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:07:29,457 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:07:29,457 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:07:29,476 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,476 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,489 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,490 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,503 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,510 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,513 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ...
[2020-09-25 03:07:29,518 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:07:29,519 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:07:29,519 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:07:29,519 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:07:29,523 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (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
[2020-09-25 03:07:29,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:07:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:07:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure floor_double
[2020-09-25 03:07:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-09-25 03:07:29,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:07:29,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:07:29,601 INFO  L130     BoogieDeclarations]: Found specification of procedure floor_double
[2020-09-25 03:07:29,601 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 03:07:29,601 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real
[2020-09-25 03:07:29,601 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 03:07:29,601 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 03:07:29,602 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 03:07:29,602 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real
[2020-09-25 03:07:29,602 INFO  L130     BoogieDeclarations]: Found specification of procedure isnan_double
[2020-09-25 03:07:29,602 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:07:29,602 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:07:29,603 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:07:30,090 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:07:30,091 INFO  L295             CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-25 03:07:30,097 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:30 BoogieIcfgContainer
[2020-09-25 03:07:30,098 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:07:30,099 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:07:30,099 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:07:30,103 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:07:30,103 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:07:28" (1/3) ...
[2020-09-25 03:07:30,104 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0f0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:30, skipping insertion in model container
[2020-09-25 03:07:30,104 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (2/3) ...
[2020-09-25 03:07:30,105 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0f0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:30, skipping insertion in model container
[2020-09-25 03:07:30,105 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:30" (3/3) ...
[2020-09-25 03:07:30,107 INFO  L109   eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c
[2020-09-25 03:07:30,117 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:07:30,128 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 03:07:30,151 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 03:07:30,181 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:07:30,181 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 03:07:30,181 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:07:30,181 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:07:30,181 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:07:30,181 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 03:07:30,181 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:07:30,182 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:07:30,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states.
[2020-09-25 03:07:30,213 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-25 03:07:30,214 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:07:30,215 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:07:30,215 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:07:30,223 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:07:30,223 INFO  L82        PathProgramCache]: Analyzing trace with hash -911557548, now seen corresponding path program 1 times
[2020-09-25 03:07:30,233 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:07:30,233 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025014773]
[2020-09-25 03:07:30,234 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:07:30,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:30,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:30,492 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:30,492 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 46
[2020-09-25 03:07:30,493 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:30,493 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-09-25 03:07:30,498 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:30,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:30,499 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 25
[2020-09-25 03:07:30,500 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:30,503 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 9
[2020-09-25 03:07:30,603 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:07:30,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:30,612 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:30,626 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:30,626 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 03:07:30,626 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:30,627 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 03:07:30,627 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:30,627 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:30,628 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:07:30,628 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:30,628 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:30,656 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-25 03:07:30,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:30,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:30,684 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:30,684 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 20
[2020-09-25 03:07:30,685 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:30,685 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-09-25 03:07:30,685 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:30,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:30,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 9
[2020-09-25 03:07:30,686 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:30,686 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:30,693 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-25 03:07:30,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:30,700 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:30,703 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:30,703 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 03:07:30,703 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:30,704 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 03:07:30,704 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:30,704 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:30,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-25 03:07:30,705 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:30,705 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:30,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 03:07:30,718 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025014773]
[2020-09-25 03:07:30,721 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:07:30,721 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 03:07:30,723 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696531882]
[2020-09-25 03:07:30,729 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 03:07:30,730 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:07:30,747 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 03:07:30,748 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 03:07:30,751 INFO  L87              Difference]: Start difference. First operand 99 states. Second operand 4 states.
[2020-09-25 03:07:31,043 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:07:31,044 INFO  L93              Difference]: Finished difference Result 181 states and 219 transitions.
[2020-09-25 03:07:31,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-09-25 03:07:31,046 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 35
[2020-09-25 03:07:31,047 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:07:31,064 INFO  L225             Difference]: With dead ends: 181
[2020-09-25 03:07:31,065 INFO  L226             Difference]: Without dead ends: 92
[2020-09-25 03:07:31,070 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
[2020-09-25 03:07:31,094 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2020-09-25 03:07:31,128 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92.
[2020-09-25 03:07:31,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 92 states.
[2020-09-25 03:07:31,132 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions.
[2020-09-25 03:07:31,135 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 35
[2020-09-25 03:07:31,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:07:31,150 INFO  L479      AbstractCegarLoop]: Abstraction has 92 states and 106 transitions.
[2020-09-25 03:07:31,150 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 03:07:31,151 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions.
[2020-09-25 03:07:31,153 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-09-25 03:07:31,153 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 03:07:31,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:07:31,154 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:07:31,154 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:07:31,155 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:07:31,155 INFO  L82        PathProgramCache]: Analyzing trace with hash 2058435850, now seen corresponding path program 1 times
[2020-09-25 03:07:31,155 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:07:31,156 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20187446]
[2020-09-25 03:07:31,156 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:07:31,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 03:07:31,211 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 03:07:31,211 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 03:07:31,218 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:07:31,244 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:07:31 BoogieIcfgContainer
[2020-09-25 03:07:31,244 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:07:31,249 INFO  L168              Benchmark]: Toolchain (without parser) took 2254.87 ms. Allocated memory was 141.6 MB in the beginning and 233.3 MB in the end (delta: 91.8 MB). Free memory was 102.1 MB in the beginning and 196.9 MB in the end (delta: -94.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 03:07:31,252 INFO  L168              Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB.
[2020-09-25 03:07:31,262 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 459.81 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 101.3 MB in the beginning and 180.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:31,263 INFO  L168              Benchmark]: Boogie Preprocessor took 61.33 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 178.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:31,264 INFO  L168              Benchmark]: RCFGBuilder took 578.96 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 151.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:31,265 INFO  L168              Benchmark]: TraceAbstraction took 1145.32 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 151.2 MB in the beginning and 196.9 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 03:07:31,276 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 459.81 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 101.3 MB in the beginning and 180.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 61.33 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 178.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 578.96 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 151.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1145.32 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 151.2 MB in the beginning and 196.9 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 25. 
Possible FailurePath: 
[L14]              static const double huge_floor = 1.0e300;
[L88]              double x = 0.0 / 0.0;
[L89]  CALL, EXPR  floor_double(x)
[L17]              __int32_t i0, i1, j0;
[L18]              __uint32_t i, j;
[L20]              ieee_double_shape_type ew_u;
[L21]              ew_u.value = (x)
[L22]  EXPR        ew_u.parts.msw
[L22]              (i0) = ew_u.parts.msw
[L23]  EXPR        ew_u.parts.lsw
[L23]              (i1) = ew_u.parts.lsw
[L25]              j0 = ((i0 >> 20) & 0x7ff) - 0x3ff
[L26]  COND FALSE  !(j0 < 20)
[L47]  COND TRUE   j0 > 51
[L48]  COND TRUE   j0 == 0x400
[L49]              return x + x;
[L89]  RET, EXPR   floor_double(x)
[L89]              double res = floor_double(x);
[L92]  CALL, EXPR  isnan_double(res)
[L80]              return x != x;
[L92]  RET, EXPR   isnan_double(res)
[L92]  COND TRUE   !isnan_double(res)
[L93]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 21 SDslu, 82 SDs, 0 SdLazy, 115 SolverSat, 6 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=99occurred 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, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1972 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...