/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_1072c.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:07:30,418 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:07:30,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:07:30,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:07:30,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:07:30,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:07:30,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 03:07:30,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 03:07:30,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 03:07:30,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 03:07:30,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 03:07:30,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 03:07:30,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:07:30,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:07:30,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:07:30,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:07:30,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:07:30,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:07:30,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:07:30,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:07:30,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:07:30,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:07:30,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:07:30,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:07:30,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:07:30,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:07:30,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:07:30,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:07:30,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 03:07:30,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 03:07:30,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:07:30,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:07:30,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:07:30,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:07:30,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:07:30,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 03:07:30,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 03:07:30,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 03:07:30,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 03:07:30,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 03:07:30,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:07:30,504 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 03:07:30,531 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 03:07:30,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:07:30,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:07:30,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 03:07:30,534 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 03:07:30,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:07:30,534 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 03:07:30,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 03:07:30,534 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 03:07:30,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 03:07:30,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:07:30,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:07:30,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:07:30,536 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 03:07:30,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 03:07:30,536 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 03:07:30,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:07:30,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:07:30,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 03:07:30,537 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 03:07:30,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 03:07:30,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:07:30,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:07:30,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:07:30,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:07:30,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 03:07:30,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:07:30,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:07:30,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 03:07:30,539 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 03:07:30,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:07:31,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:07:31,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:07:31,013 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 03:07:31,014 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 03:07:31,016 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072c.c
[2020-09-25 03:07:31,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18f78fffc/7d239df5eaaa4360ac5f78dd6e0269bd/FLAG9460e7a94
[2020-09-25 03:07:31,649 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 03:07:31,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1072c.c
[2020-09-25 03:07:31,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18f78fffc/7d239df5eaaa4360ac5f78dd6e0269bd/FLAG9460e7a94
[2020-09-25 03:07:31,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18f78fffc/7d239df5eaaa4360ac5f78dd6e0269bd
[2020-09-25 03:07:32,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:07:32,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:07:32,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:07:32,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:07:32,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:07:32,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:31" (1/1) ...
[2020-09-25 03:07:32,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe0b327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32, skipping insertion in model container
[2020-09-25 03:07:32,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:31" (1/1) ...
[2020-09-25 03:07:32,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 03:07:32,076 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:07:32,360 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:07:32,367 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 03:07:32,408 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:07:32,534 INFO L208 MainTranslator]: Completed translation
[2020-09-25 03:07:32,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32 WrapperNode
[2020-09-25 03:07:32,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:07:32,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:07:32,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:07:32,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:07:32,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (1/1) ...
[2020-09-25 03:07:32,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:07:32,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:07:32,599 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:07:32,600 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:07:32,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (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 03:07:32,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:07:32,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:07:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-09-25 03:07:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double
[2020-09-25 03:07:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double
[2020-09-25 03:07:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:07:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:07:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2020-09-25 03:07:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double
[2020-09-25 03:07:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 03:07:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-09-25 03:07:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 03:07:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 03:07:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 03:07:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-09-25 03:07:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double
[2020-09-25 03:07:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:07:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:07:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:07:33,187 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:07:33,188 INFO L295 CfgBuilder]: Removed 10 assume(true) statements.
[2020-09-25 03:07:33,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:33 BoogieIcfgContainer
[2020-09-25 03:07:33,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:07:33,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:07:33,197 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:07:33,201 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:07:33,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:07:31" (1/3) ...
[2020-09-25 03:07:33,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb15214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:33, skipping insertion in model container
[2020-09-25 03:07:33,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:32" (2/3) ...
[2020-09-25 03:07:33,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb15214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:33, skipping insertion in model container
[2020-09-25 03:07:33,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:33" (3/3) ...
[2020-09-25 03:07:33,205 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072c.c
[2020-09-25 03:07:33,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:07:33,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 03:07:33,253 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 03:07:33,283 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:07:33,283 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 03:07:33,283 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:07:33,284 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:07:33,284 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:07:33,284 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 03:07:33,284 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:07:33,284 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:07:33,309 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states.
[2020-09-25 03:07:33,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-25 03:07:33,319 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:07:33,320 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]
[2020-09-25 03:07:33,321 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:07:33,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:07:33,328 INFO L82 PathProgramCache]: Analyzing trace with hash -752135517, now seen corresponding path program 1 times
[2020-09-25 03:07:33,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:07:33,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025991541]
[2020-09-25 03:07:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:07:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:33,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:33,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:33,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-25 03:07:33,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:07:33,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252
[2020-09-25 03:07:33,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23
[2020-09-25 03:07:33,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:33,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 03:07:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:07:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:33,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:33,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:33,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:07:33,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:07:33,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 03:07:33,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:07:33,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:33,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:33,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-25 03:07:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:07:33,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:07:33,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:07:33,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20
[2020-09-25 03:07:33,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:07:33,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-09-25 03:07:33,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:07:33,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:07:33,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13
[2020-09-25 03:07:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:07:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:07:33,937 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 03:07:33,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025991541]
[2020-09-25 03:07:33,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:07:33,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 03:07:33,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826521268]
[2020-09-25 03:07:33,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 03:07:33,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:07:33,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 03:07:33,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 03:07:33,975 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 4 states.
[2020-09-25 03:07:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:07:34,312 INFO L93 Difference]: Finished difference Result 205 states and 236 transitions.
[2020-09-25 03:07:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-25 03:07:34,315 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31
[2020-09-25 03:07:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:07:34,331 INFO L225 Difference]: With dead ends: 205
[2020-09-25 03:07:34,331 INFO L226 Difference]: Without dead ends: 102
[2020-09-25 03:07:34,336 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
[2020-09-25 03:07:34,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2020-09-25 03:07:34,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102.
[2020-09-25 03:07:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states.
[2020-09-25 03:07:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions.
[2020-09-25 03:07:34,395 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 31
[2020-09-25 03:07:34,395 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:07:34,395 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions.
[2020-09-25 03:07:34,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 03:07:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions.
[2020-09-25 03:07:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-09-25 03:07:34,398 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:07:34,398 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]
[2020-09-25 03:07:34,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:07:34,399 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:07:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:07:34,399 INFO L82 PathProgramCache]: Analyzing trace with hash -34176642, now seen corresponding path program 1 times
[2020-09-25 03:07:34,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:07:34,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556974041]
[2020-09-25 03:07:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:07:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 03:07:34,448 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 03:07:34,448 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 03:07:34,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:07:34,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:07:34 BoogieIcfgContainer
[2020-09-25 03:07:34,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:07:34,480 INFO L168 Benchmark]: Toolchain (without parser) took 2469.71 ms. Allocated memory was 138.4 MB in the beginning and 233.3 MB in the end (delta: 94.9 MB). Free memory was 101.4 MB in the beginning and 192.3 MB in the end (delta: -90.9 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:34,481 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB.
[2020-09-25 03:07:34,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.00 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 180.3 MB in the end (delta: -79.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:34,483 INFO L168 Benchmark]: Boogie Preprocessor took 63.00 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 177.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:34,484 INFO L168 Benchmark]: RCFGBuilder took 596.03 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 148.0 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB.
[2020-09-25 03:07:34,485 INFO L168 Benchmark]: TraceAbstraction took 1279.84 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 148.0 MB in the beginning and 192.3 MB in the end (delta: -44.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 03:07:34,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 518.00 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 180.3 MB in the end (delta: -79.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 63.00 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 177.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 596.03 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 148.0 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1279.84 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 148.0 MB in the beginning and 192.3 MB in the end (delta: -44.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 86]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someUnaryDOUBLEoperation at line 81, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 85.
Possible FailurePath:
[L81] double x = -0.0;
[L82] CALL, EXPR trunc_double(x)
[L18] int signbit;
[L19] int msw;
[L20] unsigned int lsw;
[L21] int exponent_less_1023;
[L23] ieee_double_shape_type ew_u;
[L24] ew_u.value = (x)
[L25] EXPR ew_u.parts.msw
[L25] (msw) = ew_u.parts.msw
[L26] EXPR ew_u.parts.lsw
[L26] (lsw) = ew_u.parts.lsw
[L28] signbit = msw & 0x80000000
[L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023
[L30] COND FALSE !(exponent_less_1023 < 20)
[L47] COND TRUE exponent_less_1023 > 51
[L48] COND TRUE exponent_less_1023 == 1024
[L49] return x + x;
[L82] RET, EXPR trunc_double(x)
[L82] double res = trunc_double(x);
[L85] EXPR res == -0.0 && __signbit_double(res) == 1
[L85] COND TRUE !(res == -0.0 && __signbit_double(res) == 1)
[L86] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 17 SDslu, 69 SDs, 0 SdLazy, 135 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=110occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 1530 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...