/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=1.0 --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_1091.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:10:55,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:10:55,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:10:55,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 02:10:55,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 02:10:55,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 02:10:55,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 02:10:55,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 02:10:55,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 02:10:55,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 02:10:55,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 02:10:55,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 02:10:55,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:10:55,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:10:55,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:10:55,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:10:55,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:10:55,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:10:55,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:10:55,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:10:55,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:10:55,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:10:55,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:10:55,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:10:55,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 02:10:55,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 02:10:55,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 02:10:55,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 02:10:55,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 02:10:55,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-22 02:10:55,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:10:55,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:10:55,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:10:55,398 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 [2020-08-22 02:10:55,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:10:55,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:10:55,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:10:55,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:10:55,436 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:10:55,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:10:55,437 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:10:55,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:10:55,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:10:55,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:10:55,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:10:55,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:10:55,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:10:55,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:10:55,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:10:55,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:10:55,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:10:55,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:10:55,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:10:55,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:10:55,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:10:55,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:10:55,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:10:55,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:10:55,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:10:55,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:10:55,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:10:55,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:10:55,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:10:55,442 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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-08-22 02:10:55,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:10:55,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:10:55,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:10:55,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:10:55,808 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:10:55,809 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2020-08-22 02:10:55,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50d6c9c8a/584583b101f246278213e218dd5dadc3/FLAGadbba6b21 [2020-08-22 02:10:56,424 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:10:56,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2020-08-22 02:10:56,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50d6c9c8a/584583b101f246278213e218dd5dadc3/FLAGadbba6b21 [2020-08-22 02:10:56,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50d6c9c8a/584583b101f246278213e218dd5dadc3 [2020-08-22 02:10:56,791 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:10:56,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:10:56,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:10:56,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:10:56,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:10:56,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:10:56" (1/1) ... [2020-08-22 02:10:56,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4ff61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:56, skipping insertion in model container [2020-08-22 02:10:56,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:10:56" (1/1) ... [2020-08-22 02:10:56,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:10:56,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:10:57,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:10:57,011 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:10:57,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:10:57,150 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:10:57,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57 WrapperNode [2020-08-22 02:10:57,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:10:57,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:10:57,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:10:57,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:10:57,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (1/1) ... [2020-08-22 02:10:57,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:10:57,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:10:57,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:10:57,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:10:57,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (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 [2020-08-22 02:10:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:10:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:10:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 02:10:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2020-08-22 02:10:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:10:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 02:10:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 02:10:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 02:10:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:10:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:10:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:10:57,632 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:10:57,633 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 02:10:57,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:10:57 BoogieIcfgContainer [2020-08-22 02:10:57,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:10:57,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:10:57,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:10:57,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:10:57,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:10:56" (1/3) ... [2020-08-22 02:10:57,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1132ce25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:10:57, skipping insertion in model container [2020-08-22 02:10:57,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:10:57" (2/3) ... [2020-08-22 02:10:57,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1132ce25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:10:57, skipping insertion in model container [2020-08-22 02:10:57,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:10:57" (3/3) ... [2020-08-22 02:10:57,645 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-08-22 02:10:57,664 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:10:57,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:10:57,705 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:10:57,731 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:10:57,731 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:10:57,731 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:10:57,731 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:10:57,732 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:10:57,732 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:10:57,732 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:10:57,732 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:10:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-08-22 02:10:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-22 02:10:57,758 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:10:57,759 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] [2020-08-22 02:10:57,759 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:10:57,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:10:57,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1881433434, now seen corresponding path program 1 times [2020-08-22 02:10:57,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:10:57,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426050497] [2020-08-22 02:10:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:10:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:57,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:10:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:57,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:10:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:10:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:10:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 02:10:58,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426050497] [2020-08-22 02:10:58,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:10:58,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 02:10:58,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164155818] [2020-08-22 02:10:58,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 02:10:58,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:10:58,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 02:10:58,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 02:10:58,050 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-08-22 02:10:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:10:58,320 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-08-22 02:10:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 02:10:58,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-08-22 02:10:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:10:58,334 INFO L225 Difference]: With dead ends: 86 [2020-08-22 02:10:58,335 INFO L226 Difference]: Without dead ends: 43 [2020-08-22 02:10:58,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:10:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-22 02:10:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-22 02:10:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-22 02:10:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-08-22 02:10:58,382 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-08-22 02:10:58,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:10:58,383 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-08-22 02:10:58,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 02:10:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-08-22 02:10:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 02:10:58,385 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:10:58,385 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] [2020-08-22 02:10:58,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:10:58,386 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:10:58,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:10:58,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1135906069, now seen corresponding path program 1 times [2020-08-22 02:10:58,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:10:58,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301399884] [2020-08-22 02:10:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:10:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 02:10:58,444 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 02:10:58,444 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 02:10:58,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:10:58,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 02:10:58 BoogieIcfgContainer [2020-08-22 02:10:58,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 02:10:58,468 INFO L168 Benchmark]: Toolchain (without parser) took 1673.70 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.5 MB in the beginning and 105.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2020-08-22 02:10:58,469 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 02:10:58,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.66 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 178.4 MB in the end (delta: -78.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-08-22 02:10:58,471 INFO L168 Benchmark]: Boogie Preprocessor took 54.68 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 176.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-08-22 02:10:58,472 INFO L168 Benchmark]: RCFGBuilder took 430.51 ms. Allocated memory is still 200.3 MB. Free memory was 176.0 MB in the beginning and 154.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-08-22 02:10:58,473 INFO L168 Benchmark]: TraceAbstraction took 826.58 ms. Allocated memory is still 200.3 MB. Free memory was 153.5 MB in the beginning and 105.9 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-08-22 02:10:58,477 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 356.66 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 178.4 MB in the end (delta: -78.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.68 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 176.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.51 ms. Allocated memory is still 200.3 MB. Free memory was 176.0 MB in the beginning and 154.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 826.58 ms. Allocated memory is still 200.3 MB. Free memory was 153.5 MB in the beginning and 105.9 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; [L90] double x = 0.0 / 0.0; [L91] CALL, EXPR ceil_double(x) [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L29] COND TRUE j0 < 20 [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; [L91] RET, EXPR ceil_double(x) [L91] double res = ceil_double(x); [L94] CALL, EXPR isnan_double(res) [L15] return x != x; [L94] RET, EXPR isnan_double(res) [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...