/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_1131a.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-177f698
[2020-08-21 23:44:46,139 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-21 23:44:46,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-21 23:44:46,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-21 23:44:46,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-21 23:44:46,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-21 23:44:46,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-21 23:44:46,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-21 23:44:46,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-21 23:44:46,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-21 23:44:46,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-08-21 23:44:46,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-21 23:44:46,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-21 23:44:46,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-21 23:44:46,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-21 23:44:46,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-21 23:44:46,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-21 23:44:46,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-21 23:44:46,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-21 23:44:46,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-21 23:44:46,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-21 23:44:46,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-21 23:44:46,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-21 23:44:46,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-21 23:44:46,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-21 23:44:46,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-21 23:44:46,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-21 23:44:46,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-21 23:44:46,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-21 23:44:46,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-21 23:44:46,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-21 23:44:46,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-21 23:44:46,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-21 23:44:46,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-21 23:44:46,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-21 23:44:46,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-21 23:44:46,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-21 23:44:46,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-21 23:44:46,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-21 23:44:46,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-21 23:44:46,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-08-21 23:44:46,242 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
[2020-08-21 23:44:46,285 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-21 23:44:46,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-21 23:44:46,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-21 23:44:46,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-08-21 23:44:46,288 INFO L138 SettingsManager]: * Use SBE=true
[2020-08-21 23:44:46,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-21 23:44:46,289 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-21 23:44:46,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-21 23:44:46,289 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-21 23:44:46,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-21 23:44:46,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-21 23:44:46,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-21 23:44:46,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-21 23:44:46,291 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-21 23:44:46,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-21 23:44:46,292 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-21 23:44:46,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-21 23:44:46,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-21 23:44:46,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-08-21 23:44:46,293 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-21 23:44:46,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-21 23:44:46,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-21 23:44:46,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-21 23:44:46,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-08-21 23:44:46,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-21 23:44:46,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-08-21 23:44:46,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-21 23:44:46,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-21 23:44:46,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-08-21 23:44:46,294 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.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
[2020-08-21 23:44:46,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-21 23:44:46,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-21 23:44:46,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-21 23:44:46,620 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-21 23:44:46,620 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-21 23:44:46,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c
[2020-08-21 23:44:46,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79f9459ae/95a1c6567c3d452594277586e94dbe3e/FLAG8d89b5649
[2020-08-21 23:44:47,188 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-21 23:44:47,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c
[2020-08-21 23:44:47,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79f9459ae/95a1c6567c3d452594277586e94dbe3e/FLAG8d89b5649
[2020-08-21 23:44:47,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79f9459ae/95a1c6567c3d452594277586e94dbe3e
[2020-08-21 23:44:47,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-21 23:44:47,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-21 23:44:47,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-21 23:44:47,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-21 23:44:47,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-21 23:44:47,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4d4318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47, skipping insertion in model container
[2020-08-21 23:44:47,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-21 23:44:47,566 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-21 23:44:47,771 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-21 23:44:47,776 INFO L203 MainTranslator]: Completed pre-run
[2020-08-21 23:44:47,924 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-21 23:44:47,943 INFO L208 MainTranslator]: Completed translation
[2020-08-21 23:44:47,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47 WrapperNode
[2020-08-21 23:44:47,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-21 23:44:47,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-21 23:44:47,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-21 23:44:47,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-21 23:44:47,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:47,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:48,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (1/1) ...
[2020-08-21 23:44:48,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-21 23:44:48,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-21 23:44:48,005 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-21 23:44:48,005 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-21 23:44:48,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (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
[2020-08-21 23:44:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-21 23:44:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-21 23:44:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-08-21 23:44:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double
[2020-08-21 23:44:48,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double
[2020-08-21 23:44:48,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-21 23:44:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-21 23:44:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2020-08-21 23:44:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2020-08-21 23:44:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double
[2020-08-21 23:44:48,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-21 23:44:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-08-21 23:44:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-08-21 23:44:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-21 23:44:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-08-21 23:44:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-08-21 23:44:48,066 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double
[2020-08-21 23:44:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-21 23:44:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-21 23:44:48,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real
[2020-08-21 23:44:48,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-21 23:44:48,622 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-21 23:44:48,623 INFO L295 CfgBuilder]: Removed 16 assume(true) statements.
[2020-08-21 23:44:48,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:44:48 BoogieIcfgContainer
[2020-08-21 23:44:48,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-21 23:44:48,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-21 23:44:48,629 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-21 23:44:48,632 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-21 23:44:48,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:44:47" (1/3) ...
[2020-08-21 23:44:48,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b41c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:44:48, skipping insertion in model container
[2020-08-21 23:44:48,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:47" (2/3) ...
[2020-08-21 23:44:48,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b41c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:44:48, skipping insertion in model container
[2020-08-21 23:44:48,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:44:48" (3/3) ...
[2020-08-21 23:44:48,636 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c
[2020-08-21 23:44:48,647 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-21 23:44:48,655 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-21 23:44:48,665 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-21 23:44:48,684 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-21 23:44:48,684 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-21 23:44:48,685 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-21 23:44:48,685 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-21 23:44:48,685 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-21 23:44:48,685 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-21 23:44:48,685 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-21 23:44:48,685 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-21 23:44:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states.
[2020-08-21 23:44:48,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-08-21 23:44:48,710 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-21 23:44:48,711 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]
[2020-08-21 23:44:48,711 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 23:44:48,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 23:44:48,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times
[2020-08-21 23:44:48,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 23:44:48,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753893379]
[2020-08-21 23:44:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 23:44:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 23:44:48,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-21 23:44:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 23:44:48,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-21 23:44:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 23:44:48,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2020-08-21 23:44:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-21 23:44:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-21 23:44:48,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753893379]
[2020-08-21 23:44:48,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-21 23:44:48,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-21 23:44:48,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70298493]
[2020-08-21 23:44:48,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-21 23:44:48,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-21 23:44:48,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-21 23:44:48,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-21 23:44:48,983 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states.
[2020-08-21 23:44:49,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-21 23:44:49,296 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions.
[2020-08-21 23:44:49,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-08-21 23:44:49,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25
[2020-08-21 23:44:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-21 23:44:49,309 INFO L225 Difference]: With dead ends: 138
[2020-08-21 23:44:49,310 INFO L226 Difference]: Without dead ends: 68
[2020-08-21 23:44:49,314 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
[2020-08-21 23:44:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2020-08-21 23:44:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2020-08-21 23:44:49,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-08-21 23:44:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions.
[2020-08-21 23:44:49,360 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25
[2020-08-21 23:44:49,361 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-21 23:44:49,361 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions.
[2020-08-21 23:44:49,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-21 23:44:49,361 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions.
[2020-08-21 23:44:49,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-08-21 23:44:49,363 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-21 23:44:49,363 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]
[2020-08-21 23:44:49,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-21 23:44:49,364 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-21 23:44:49,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-21 23:44:49,364 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times
[2020-08-21 23:44:49,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-21 23:44:49,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111048773]
[2020-08-21 23:44:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-21 23:44:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-21 23:44:49,508 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-21 23:44:49,509 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-08-21 23:44:49,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-21 23:44:49,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:44:49 BoogieIcfgContainer
[2020-08-21 23:44:49,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-21 23:44:49,534 INFO L168 Benchmark]: Toolchain (without parser) took 2009.65 ms. Allocated memory was 142.1 MB in the beginning and 233.3 MB in the end (delta: 91.2 MB). Free memory was 104.6 MB in the beginning and 186.1 MB in the end (delta: -81.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2020-08-21 23:44:49,535 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-08-21 23:44:49,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.95 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 104.4 MB in the beginning and 178.8 MB in the end (delta: -74.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
[2020-08-21 23:44:49,537 INFO L168 Benchmark]: Boogie Preprocessor took 60.38 ms. Allocated memory is still 203.4 MB. Free memory was 178.8 MB in the beginning and 176.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
[2020-08-21 23:44:49,538 INFO L168 Benchmark]: RCFGBuilder took 622.81 ms. Allocated memory is still 203.4 MB. Free memory was 175.5 MB in the beginning and 139.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB.
[2020-08-21 23:44:49,538 INFO L168 Benchmark]: TraceAbstraction took 902.56 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 138.8 MB in the beginning and 186.1 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-08-21 23:44:49,542 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.67 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 416.95 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 104.4 MB in the beginning and 178.8 MB in the end (delta: -74.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 60.38 ms. Allocated memory is still 203.4 MB. Free memory was 178.8 MB in the beginning and 176.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 622.81 ms. Allocated memory is still 203.4 MB. Free memory was 175.5 MB in the beginning and 139.4 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 902.56 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 138.8 MB in the beginning and 186.1 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 189]: 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 someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40.
Possible FailurePath:
[L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = {
0.0,
-0.0,
};
[L180] double y = 1.0 / 0.0;
[L181] double x = __VERIFIER_nondet_double();
[L183] CALL isfinite_double(x)
[L164] __int32_t hx;
[L166] ieee_double_shape_type gh_u;
[L167] gh_u.value = (x)
[L168] EXPR gh_u.parts.msw
[L168] (hx) = gh_u.parts.msw
[L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31);
[L183] RET isfinite_double(x)
[L183] COND TRUE isfinite_double(x)
[L185] 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);
[L185] RET, EXPR fmod_double(x, y)
[L185] double res = fmod_double(x, y);
[L188] COND TRUE res != x
[L189] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 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...