/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_1032c.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:07:25,088 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:07:25,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:07:25,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:07:25,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:07:25,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:07:25,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 03:07:25,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 03:07:25,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 03:07:25,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 03:07:25,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 03:07:25,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 03:07:25,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:07:25,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:07:25,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:07:25,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:07:25,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:07:25,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:07:25,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:07:25,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:07:25,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:07:25,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:07:25,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:07:25,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:07:25,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:07:25,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:07:25,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:07:25,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:07:25,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 03:07:25,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 03:07:25,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:07:25,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:07:25,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:07:25,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:07:25,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:07:25,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 03:07:25,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 03:07:25,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 03:07:25,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 03:07:25,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 03:07:25,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:07:25,215 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 03:07:25,258 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 03:07:25,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:07:25,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:07:25,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 03:07:25,262 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 03:07:25,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:07:25,262 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 03:07:25,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 03:07:25,263 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 03:07:25,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 03:07:25,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:07:25,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:07:25,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:07:25,265 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 03:07:25,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 03:07:25,265 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 03:07:25,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:07:25,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:07:25,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 03:07:25,266 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 03:07:25,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 03:07:25,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:07:25,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:07:25,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:07:25,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:07:25,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 03:07:25,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:07:25,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:07:25,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 03:07:25,268 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 03:07:25,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:07:25,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:07:25,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:07:25,773 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 03:07:25,773 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 03:07:25,774 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c
[2020-09-25 03:07:25,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf1920a1c/1c9f7516531842bbbdcc09ad4bae9b82/FLAGa834f6ada
[2020-09-25 03:07:26,441 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 03:07:26,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c
[2020-09-25 03:07:26,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf1920a1c/1c9f7516531842bbbdcc09ad4bae9b82/FLAGa834f6ada
[2020-09-25 03:07:26,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf1920a1c/1c9f7516531842bbbdcc09ad4bae9b82
[2020-09-25 03:07:26,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:07:26,770 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:07:26,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:07:26,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:07:26,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:07:26,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:26" (1/1) ...
[2020-09-25 03:07:26,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef8bc88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:26, skipping insertion in model container
[2020-09-25 03:07:26,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:26" (1/1) ...
[2020-09-25 03:07:26,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 03:07:26,832 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:07:27,102 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:07:27,106 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 03:07:27,245 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:07:27,270 INFO L208 MainTranslator]: Completed translation
[2020-09-25 03:07:27,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27 WrapperNode
[2020-09-25 03:07:27,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:07:27,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:07:27,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:07:27,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:07:27,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (1/1) ...
[2020-09-25 03:07:27,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:07:27,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:07:27,329 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:07:27,329 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:07:27,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (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
[2020-09-25 03:07:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:07:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:07:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double
[2020-09-25 03:07:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double
[2020-09-25 03:07:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:07:27,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:07:27,409 INFO L130 BoogieDeclarations]: Found specification of procedure round_double
[2020-09-25 03:07:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 03:07:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-09-25 03:07:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 03:07:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 03:07:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 03:07:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-09-25 03:07:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double
[2020-09-25 03:07:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:07:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:07:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:07:27,860 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:07:27,861 INFO L295 CfgBuilder]: Removed 6 assume(true) statements.
[2020-09-25 03:07:27,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:27 BoogieIcfgContainer
[2020-09-25 03:07:27,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:07:27,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:07:27,871 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:07:27,878 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:07:27,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:07:26" (1/3) ...
[2020-09-25 03:07:27,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20979512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:27, skipping insertion in model container
[2020-09-25 03:07:27,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:27" (2/3) ...
[2020-09-25 03:07:27,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20979512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:27, skipping insertion in model container
[2020-09-25 03:07:27,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:27" (3/3) ...
[2020-09-25 03:07:27,891 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c
[2020-09-25 03:07:27,903 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:07:27,913 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 03:07:27,933 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 03:07:27,962 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:07:27,962 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 03:07:27,962 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:07:27,963 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:07:27,963 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:07:27,963 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 03:07:27,963 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:07:27,963 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:07:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states.
[2020-09-25 03:07:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-09-25 03:07:27,999 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:07:28,000 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]
[2020-09-25 03:07:28,000 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:07:28,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:07:28,007 INFO L82 PathProgramCache]: Analyzing trace with hash 223530101, now seen corresponding path program 1 times
[2020-09-25 03:07:28,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:07:28,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984751125]
[2020-09-25 03:07:28,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:07:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:28,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:28,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:28,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-25 03:07:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:07:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301
[2020-09-25 03:07:28,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:28,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38
[2020-09-25 03:07:28,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:28,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 03:07:28,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:07:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:28,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:28,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:07:28,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 03:07:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:07:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:28,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-25 03:07:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:28,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:28,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:28,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18
[2020-09-25 03:07:28,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:07:28,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-25 03:07:28,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-25 03:07:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:28,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2020-09-25 03:07:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:28,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:28,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-25 03:07:28,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37
[2020-09-25 03:07:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-25 03:07:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:28,726 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 03:07:28,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984751125]
[2020-09-25 03:07:28,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:07:28,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 03:07:28,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773319424]
[2020-09-25 03:07:28,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 03:07:28,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:07:28,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 03:07:28,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 03:07:28,769 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 4 states.
[2020-09-25 03:07:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:07:29,123 INFO L93 Difference]: Finished difference Result 202 states and 231 transitions.
[2020-09-25 03:07:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-25 03:07:29,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38
[2020-09-25 03:07:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:07:29,142 INFO L225 Difference]: With dead ends: 202
[2020-09-25 03:07:29,143 INFO L226 Difference]: Without dead ends: 101
[2020-09-25 03:07:29,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 03:07:29,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2020-09-25 03:07:29,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2020-09-25 03:07:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states.
[2020-09-25 03:07:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions.
[2020-09-25 03:07:29,239 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 38
[2020-09-25 03:07:29,240 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:07:29,241 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions.
[2020-09-25 03:07:29,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 03:07:29,242 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions.
[2020-09-25 03:07:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-09-25 03:07:29,250 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:07:29,250 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]
[2020-09-25 03:07:29,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:07:29,251 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:07:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:07:29,252 INFO L82 PathProgramCache]: Analyzing trace with hash 32877217, now seen corresponding path program 1 times
[2020-09-25 03:07:29,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:07:29,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098732993]
[2020-09-25 03:07:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:07:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 03:07:29,357 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 03:07:29,358 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 03:07:29,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:07:29,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:07:29 BoogieIcfgContainer
[2020-09-25 03:07:29,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:07:29,393 INFO L168 Benchmark]: Toolchain (without parser) took 2626.47 ms. Allocated memory was 140.0 MB in the beginning and 235.9 MB in the end (delta: 95.9 MB). Free memory was 102.9 MB in the beginning and 185.6 MB in the end (delta: -82.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:29,394 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 03:07:29,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.26 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 180.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:29,396 INFO L168 Benchmark]: Boogie Preprocessor took 56.72 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 178.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:29,397 INFO L168 Benchmark]: RCFGBuilder took 540.72 ms. Allocated memory is still 203.4 MB. Free memory was 178.2 MB in the beginning and 150.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:29,398 INFO L168 Benchmark]: TraceAbstraction took 1518.34 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 149.8 MB in the beginning and 185.6 MB in the end (delta: -35.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 03:07:29,401 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 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 498.26 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 180.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 56.72 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 178.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 540.72 ms. Allocated memory is still 203.4 MB. Free memory was 178.2 MB in the beginning and 150.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1518.34 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 149.8 MB in the beginning and 185.6 MB in the end (delta: -35.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of bitwiseOr at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 40, overapproximation of bitwiseAnd at line 72.
Possible FailurePath:
[L86] double x = 1.0 / 0.0;
[L87] CALL, EXPR round_double(x)
[L15] __int32_t msw, exponent_less_1023;
[L16] __uint32_t lsw;
[L18] ieee_double_shape_type ew_u;
[L19] ew_u.value = (x)
[L20] EXPR ew_u.parts.msw
[L20] (msw) = ew_u.parts.msw
[L21] EXPR ew_u.parts.lsw
[L21] (lsw) = ew_u.parts.lsw
[L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023
[L24] COND FALSE !(exponent_less_1023 < 20)
[L38] COND TRUE exponent_less_1023 > 51
[L39] COND TRUE exponent_less_1023 == 1024
[L40] return x + x;
[L87] RET, EXPR round_double(x)
[L87] double res = round_double(x);
[L90] CALL, EXPR isinf_double(res)
[L65] __int32_t hx, lx;
[L67] ieee_double_shape_type ew_u;
[L68] ew_u.value = (x)
[L69] EXPR ew_u.parts.msw
[L69] (hx) = ew_u.parts.msw
[L70] EXPR ew_u.parts.lsw
[L70] (lx) = ew_u.parts.lsw
[L72] hx &= 0x7fffffff
[L73] hx |= (__uint32_t)(lx | (-lx)) >> 31
[L74] hx = 0x7ff00000 - hx
[L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31);
[L90] RET, EXPR isinf_double(res)
[L90] COND TRUE !isinf_double(res)
[L91] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 17 SDslu, 82 SDs, 0 SdLazy, 124 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 0.5s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 2590 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...