/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 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_1130a.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:00:46,052 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:00:46,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:00:46,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:00:46,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:00:46,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:00:46,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:00:46,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:00:46,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:00:46,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:00:46,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:00:46,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:00:46,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:00:46,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:00:46,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:00:46,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:00:46,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:00:46,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:00:46,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:00:46,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:00:46,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:00:46,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:00:46,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:00:46,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:00:46,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:00:46,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:00:46,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:00:46,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:00:46,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:00:46,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:00:46,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:00:46,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:00:46,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:00:46,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:00:46,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:00:46,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:00:46,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:00:46,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:00:46,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:00:46,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:00:46,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:00:46,168 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
[2020-09-24 17:00:46,195 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:00:46,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:00:46,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:00:46,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:00:46,197 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:00:46,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:00:46,197 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:00:46,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:00:46,198 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:00:46,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:00:46,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:00:46,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:00:46,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:00:46,199 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:00:46,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:00:46,199 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:00:46,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:00:46,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:00:46,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:00:46,200 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:00:46,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:00:46,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:00:46,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:00:46,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:00:46,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:00:46,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:00:46,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:00:46,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:00:46,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:00:46,202 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;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;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;log-additional-information=true;
[2020-09-24 17:00:46,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:00:46,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:00:46,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:00:46,675 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:00:46,675 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:00:46,677 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c
[2020-09-24 17:00:46,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f525c065d/89751a9a8eab44a0b673e19cc338898a/FLAG4e4c2b199
[2020-09-24 17:00:47,337 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:00:47,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c
[2020-09-24 17:00:47,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f525c065d/89751a9a8eab44a0b673e19cc338898a/FLAG4e4c2b199
[2020-09-24 17:00:47,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f525c065d/89751a9a8eab44a0b673e19cc338898a
[2020-09-24 17:00:47,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:00:47,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:00:47,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:00:47,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:00:47,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:00:47,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:00:47" (1/1) ...
[2020-09-24 17:00:47,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e50511c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:47, skipping insertion in model container
[2020-09-24 17:00:47,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:00:47" (1/1) ...
[2020-09-24 17:00:47,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:00:47,698 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:00:48,002 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:00:48,012 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:00:48,154 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:00:48,179 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:00:48,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48 WrapperNode
[2020-09-24 17:00:48,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:00:48,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:00:48,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:00:48,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:00:48,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (1/1) ...
[2020-09-24 17:00:48,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:00:48,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:00:48,258 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:00:48,258 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:00:48,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (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
[2020-09-24 17:00:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:00:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:00:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-09-24 17:00:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double
[2020-09-24 17:00:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double
[2020-09-24 17:00:48,334 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:00:48,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:00:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2020-09-24 17:00:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2020-09-24 17:00:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double
[2020-09-24 17:00:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:00:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-09-24 17:00:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:00:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:00:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-09-24 17:00:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:00:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double
[2020-09-24 17:00:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:00:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:00:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real
[2020-09-24 17:00:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:00:49,115 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:00:49,115 INFO L295 CfgBuilder]: Removed 16 assume(true) statements.
[2020-09-24 17:00:49,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:00:49 BoogieIcfgContainer
[2020-09-24 17:00:49,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:00:49,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:00:49,126 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:00:49,130 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:00:49,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:00:47" (1/3) ...
[2020-09-24 17:00:49,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cd0e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:00:49, skipping insertion in model container
[2020-09-24 17:00:49,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:48" (2/3) ...
[2020-09-24 17:00:49,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cd0e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:00:49, skipping insertion in model container
[2020-09-24 17:00:49,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:00:49" (3/3) ...
[2020-09-24 17:00:49,137 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c
[2020-09-24 17:00:49,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:00:49,162 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:00:49,186 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:00:49,218 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:00:49,218 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:00:49,219 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:00:49,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:00:49,219 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:00:49,219 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:00:49,219 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:00:49,219 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:00:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states.
[2020-09-24 17:00:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-09-24 17:00:49,260 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:00:49,262 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]
[2020-09-24 17:00:49,262 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:00:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:00:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1608489446, now seen corresponding path program 1 times
[2020-09-24 17:00:49,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:00:49,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155316638]
[2020-09-24 17:00:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:00:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:49,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:49,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:49,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55
[2020-09-24 17:00:49,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:00:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253
[2020-09-24 17:00:49,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39
[2020-09-24 17:00:49,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:00:49,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:00:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:49,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:49,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:49,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 17:00:49,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:00:49,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22
[2020-09-24 17:00:49,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:00:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:49,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:00:49,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-09-24 17:00:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:49,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:49,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:49,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28
[2020-09-24 17:00:49,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:00:49,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 17:00:49,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-24 17:00:49,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:49,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:00:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:00:49,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155316638]
[2020-09-24 17:00:49,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:00:49,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 17:00:49,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535920591]
[2020-09-24 17:00:49,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 17:00:49,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:00:49,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 17:00:49,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 17:00:49,929 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 4 states.
[2020-09-24 17:00:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:00:50,466 INFO L93 Difference]: Finished difference Result 415 states and 505 transitions.
[2020-09-24 17:00:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-24 17:00:50,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46
[2020-09-24 17:00:50,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:00:50,485 INFO L225 Difference]: With dead ends: 415
[2020-09-24 17:00:50,485 INFO L226 Difference]: Without dead ends: 213
[2020-09-24 17:00:50,491 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
[2020-09-24 17:00:50,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states.
[2020-09-24 17:00:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213.
[2020-09-24 17:00:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states.
[2020-09-24 17:00:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions.
[2020-09-24 17:00:50,561 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 46
[2020-09-24 17:00:50,561 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:00:50,561 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions.
[2020-09-24 17:00:50,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 17:00:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions.
[2020-09-24 17:00:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2020-09-24 17:00:50,565 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:00:50,566 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, 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]
[2020-09-24 17:00:50,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:00:50,566 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:00:50,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:00:50,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1262573606, now seen corresponding path program 1 times
[2020-09-24 17:00:50,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:00:50,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157302435]
[2020-09-24 17:00:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:00:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 17:00:50,652 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 17:00:50,653 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:00:50,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:00:50,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:00:50 BoogieIcfgContainer
[2020-09-24 17:00:50,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:00:50,705 INFO L168 Benchmark]: Toolchain (without parser) took 3065.64 ms. Allocated memory was 141.0 MB in the beginning and 235.9 MB in the end (delta: 94.9 MB). Free memory was 102.8 MB in the beginning and 129.5 MB in the end (delta: -26.8 MB). Peak memory consumption was 68.1 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:50,710 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
[2020-09-24 17:00:50,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.37 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 179.5 MB in the end (delta: -77.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:50,714 INFO L168 Benchmark]: Boogie Preprocessor took 76.62 ms. Allocated memory is still 203.9 MB. Free memory was 179.5 MB in the beginning and 176.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:50,715 INFO L168 Benchmark]: RCFGBuilder took 865.70 ms. Allocated memory is still 203.9 MB. Free memory was 176.8 MB in the beginning and 128.5 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:50,717 INFO L168 Benchmark]: TraceAbstraction took 1575.09 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 128.5 MB in the beginning and 129.5 MB in the end (delta: -976.3 kB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:50,728 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 538.37 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 179.5 MB in the end (delta: -77.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 76.62 ms. Allocated memory is still 203.9 MB. Free memory was 179.5 MB in the beginning and 176.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 865.70 ms. Allocated memory is still 203.9 MB. Free memory was 176.8 MB in the beginning and 128.5 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1575.09 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 128.5 MB in the beginning and 129.5 MB in the end (delta: -976.3 kB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 191]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 40.
Possible FailurePath:
[L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = {
0.0,
-0.0,
};
[L182] double x = 0.0;
[L183] double y = __VERIFIER_nondet_double();
[L185] COND TRUE y < 0.0 || y > 0.0
[L187] CALL, EXPR fmod_double(x, y)
[L24] __int32_t n, hx, hy, hz, ix, iy, sx, i;
[L25] __uint32_t lx, ly, lz;
[L28] ieee_double_shape_type ew_u;
[L29] ew_u.value = (x)
[L30] EXPR ew_u.parts.msw
[L30] (hx) = ew_u.parts.msw
[L31] EXPR ew_u.parts.lsw
[L31] (lx) = ew_u.parts.lsw
[L34] ieee_double_shape_type ew_u;
[L35] ew_u.value = (y)
[L36] EXPR ew_u.parts.msw
[L36] (hy) = ew_u.parts.msw
[L37] EXPR ew_u.parts.lsw
[L37] (ly) = ew_u.parts.lsw
[L39] sx = hx & 0x80000000
[L40] hx ^= sx
[L41] hy &= 0x7fffffff
[L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) ||
((hy | ((ly | -ly) >> 31)) > 0x7ff00000)
[L45] return (x * y) / (x * y);
[L187] RET, EXPR fmod_double(x, y)
[L187] double res = fmod_double(x, y);
[L190] EXPR res == 0.0 && __signbit_double(res) == 0
[L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0)
[L191] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 45 SDslu, 184 SDs, 0 SdLazy, 266 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=221occurred 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, 0.4s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 3510 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...