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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:35,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:35,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:35,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:21:35,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:35,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:35,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:35,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:35,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:35,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:35,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:35,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:35,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:35,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:35,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:35,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:35,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:35,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:35,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:35,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:35,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:21:35,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:35,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:35,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:35,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:35,843 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:35,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:35,843 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:35,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:35,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:35,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:35,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:35,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:35,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:35,845 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:35,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:35,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:35,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:35,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:35,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:35,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:35,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:35,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:35,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:35,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:35,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:35,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:35,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:35,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:35,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:35,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:35,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:35,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:35,908 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:35,911 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:35,912 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2019-09-08 01:21:36,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2fe1ec23/38b3f6e134f343a2b8c05a823d0993ee/FLAGdfc75605f [2019-09-08 01:21:36,438 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:36,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1300.c [2019-09-08 01:21:36,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2fe1ec23/38b3f6e134f343a2b8c05a823d0993ee/FLAGdfc75605f [2019-09-08 01:21:36,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2fe1ec23/38b3f6e134f343a2b8c05a823d0993ee [2019-09-08 01:21:36,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:36,823 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:36,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:36,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:36,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:36,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:36" (1/1) ... [2019-09-08 01:21:36,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639876b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:36, skipping insertion in model container [2019-09-08 01:21:36,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:36" (1/1) ... [2019-09-08 01:21:36,839 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:36,861 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:37,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:37,059 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:37,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:37,199 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:37,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37 WrapperNode [2019-09-08 01:21:37,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:37,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:37,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:37,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:37,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... [2019-09-08 01:21:37,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:37,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:37,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:37,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:37,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-09-08 01:21:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-08 01:21:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2019-09-08 01:21:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-08 01:21:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2019-09-08 01:21:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:37,594 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:37,594 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 01:21:37,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:37 BoogieIcfgContainer [2019-09-08 01:21:37,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:37,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:37,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:37,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:37,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:36" (1/3) ... [2019-09-08 01:21:37,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494f9345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:37, skipping insertion in model container [2019-09-08 01:21:37,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:37" (2/3) ... [2019-09-08 01:21:37,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494f9345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:37, skipping insertion in model container [2019-09-08 01:21:37,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:37" (3/3) ... [2019-09-08 01:21:37,623 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2019-09-08 01:21:37,635 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:37,666 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:37,692 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:37,720 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:37,721 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:37,721 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:37,721 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:37,721 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:37,721 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:37,721 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:37,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:37,721 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-09-08 01:21:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-08 01:21:37,742 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:37,743 INFO L399 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] [2019-09-08 01:21:37,744 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:37,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:37,749 INFO L82 PathProgramCache]: Analyzing trace with hash -829971037, now seen corresponding path program 1 times [2019-09-08 01:21:37,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:37,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:37,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:37,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:37,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:21:37,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:37,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:37,900 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:37,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:37,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:37,913 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-09-08 01:21:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:37,938 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2019-09-08 01:21:37,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:37,940 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-08 01:21:37,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:37,949 INFO L225 Difference]: With dead ends: 66 [2019-09-08 01:21:37,949 INFO L226 Difference]: Without dead ends: 32 [2019-09-08 01:21:37,953 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:37,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-09-08 01:21:37,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-09-08 01:21:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-08 01:21:37,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-09-08 01:21:37,993 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 24 [2019-09-08 01:21:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:37,993 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-09-08 01:21:37,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-09-08 01:21:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-08 01:21:37,995 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:37,995 INFO L399 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] [2019-09-08 01:21:37,996 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:37,996 INFO L82 PathProgramCache]: Analyzing trace with hash 905994018, now seen corresponding path program 1 times [2019-09-08 01:21:37,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:37,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:37,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:37,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:37,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:21:38,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:38,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 01:21:38,175 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 01:21:38,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 01:21:38,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:21:38,176 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 3 states. [2019-09-08 01:21:38,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:38,205 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2019-09-08 01:21:38,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 01:21:38,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-09-08 01:21:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:38,209 INFO L225 Difference]: With dead ends: 44 [2019-09-08 01:21:38,209 INFO L226 Difference]: Without dead ends: 32 [2019-09-08 01:21:38,210 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:21:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-09-08 01:21:38,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-09-08 01:21:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-09-08 01:21:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2019-09-08 01:21:38,217 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 26 [2019-09-08 01:21:38,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:38,217 INFO L475 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2019-09-08 01:21:38,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 01:21:38,217 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2019-09-08 01:21:38,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-09-08 01:21:38,219 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:38,219 INFO L399 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] [2019-09-08 01:21:38,219 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:38,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:38,220 INFO L82 PathProgramCache]: Analyzing trace with hash 859982537, now seen corresponding path program 1 times [2019-09-08 01:21:38,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:38,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:38,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:38,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:38,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:38,498 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:38,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:38 BoogieIcfgContainer [2019-09-08 01:21:38,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:38,551 INFO L168 Benchmark]: Toolchain (without parser) took 1726.33 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.7 MB in the beginning and 116.1 MB in the end (delta: -26.4 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:38,552 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:21:38,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.58 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.2 MB in the beginning and 177.3 MB in the end (delta: -88.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:38,557 INFO L168 Benchmark]: Boogie Preprocessor took 46.84 ms. Allocated memory is still 201.3 MB. Free memory was 177.3 MB in the beginning and 175.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:38,558 INFO L168 Benchmark]: RCFGBuilder took 348.27 ms. Allocated memory is still 201.3 MB. Free memory was 175.6 MB in the beginning and 157.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:38,559 INFO L168 Benchmark]: TraceAbstraction took 950.05 ms. Allocated memory is still 201.3 MB. Free memory was 156.6 MB in the beginning and 116.1 MB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:38,573 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 376.58 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.2 MB in the beginning and 177.3 MB in the end (delta: -88.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.84 ms. Allocated memory is still 201.3 MB. Free memory was 177.3 MB in the beginning and 175.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.27 ms. Allocated memory is still 201.3 MB. Free memory was 175.6 MB in the beginning and 157.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 950.05 ms. Allocated memory is still 201.3 MB. Free memory was 156.6 MB in the beginning and 116.1 MB in the end (delta: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 25, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of to_real at line 55. Possible FailurePath: [L50] double x = __VERIFIER_nondet_double(); [L53] CALL, EXPR isinf_double(x) VAL [\old(x)=8589934595] [L17] __int32_t hx, lx; VAL [\old(x)=8589934595, x=8589934595] [L19] ieee_double_shape_type ew_u; [L20] ew_u.value = (x) [L21] EXPR ew_u.parts.msw [L21] (hx) = ew_u.parts.msw [L22] EXPR ew_u.parts.lsw [L22] (lx) = ew_u.parts.lsw [L24] hx &= 0x7fffffff [L25] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L26] hx = 0x7ff00000 - hx [L27] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=8589934595, \result=0, hx=2146435073, lx=-2, x=8589934595] [L53] RET, EXPR isinf_double(x) VAL [isinf_double(x)=0, x=8589934595] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, x=8589934595] [L53] CALL, EXPR isnan_double(x) VAL [\old(x)=8589934595] [L31] return x != x; VAL [\old(x)=8589934595, \result=0, x=8589934595] [L53] RET, EXPR isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=8589934595] [L53] !isinf_double(x) && !isnan_double(x) VAL [!isinf_double(x) && !isnan_double(x)=1, isinf_double(x)=0, isnan_double(x)=0, x=8589934595] [L53] COND TRUE !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isfinite_double(x) VAL [\old(x)=8589934595] [L34] __int32_t hx; VAL [\old(x)=8589934595, x=8589934595] [L36] ieee_double_shape_type gh_u; [L37] gh_u.value = (x) [L38] EXPR gh_u.parts.msw [L38] (hx) = gh_u.parts.msw [L40] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=8589934595, \result=-5, hx=-3, x=8589934595] [L55] RET, EXPR isfinite_double(x) VAL [isfinite_double(x)=-5, x=8589934595] [L55] double res = isfinite_double(x); [L58] COND TRUE res == 0.0 VAL [x=8589934595] [L59] __VERIFIER_error() VAL [x=8589934595] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 0 SDslu, 27 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...