/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d ....................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:01:56,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:01:56,701 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:01:56,718 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:01:56,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:01:56,719 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:01:56,722 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:01:56,724 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:01:56,725 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:01:56,726 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:01:56,727 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:01:56,727 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:01:56,728 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:01:56,729 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:01:56,730 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:01:56,731 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:01:56,732 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:01:56,734 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:01:56,736 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:01:56,738 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:01:56,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:01:56,740 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:01:56,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:01:56,743 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:01:56,743 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:01:56,744 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:01:56,745 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:01:56,746 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:01:56,747 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:01:56,748 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:01:56,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:01:56,749 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:01:56,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:01:56,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:01:56,751 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:01:56,752 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:01:56,752 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:01:56,770 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:01:56,770 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:01:56,772 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:01:56,772 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:01:56,773 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:01:56,773 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:01:56,773 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:01:56,773 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:01:56,775 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:01:56,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:01:56,775 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:01:56,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:01:56,776 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:01:56,776 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:01:56,777 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:01:56,777 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:01:56,777 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:01:56,777 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:01:56,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:01:56,778 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:01:56,778 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:01:56,778 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:01:56,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:01:56,781 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:01:56,781 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:01:56,781 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:01:56,781 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:01:56,782 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:01:56,782 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:01:56,782 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d [2018-09-20 15:01:56,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:01:56,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:01:56,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:01:56,899 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:01:56,899 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:01:56,900 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-09-20 15:01:57,258 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728020bb2/f6f0a1af5dd24e42a0dd4fc4d6708574/FLAG90886b72e [2018-09-20 15:01:57,463 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:01:57,465 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-09-20 15:01:57,480 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728020bb2/f6f0a1af5dd24e42a0dd4fc4d6708574/FLAG90886b72e [2018-09-20 15:01:57,504 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/728020bb2/f6f0a1af5dd24e42a0dd4fc4d6708574 [2018-09-20 15:01:57,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:01:57,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:01:57,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:57,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:01:57,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:01:57,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfd1a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57, skipping insertion in model container [2018-09-20 15:01:57,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,547 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:01:57,786 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:57,811 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:01:57,842 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:01:57,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57 WrapperNode [2018-09-20 15:01:57,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:01:57,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:01:57,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:01:57,889 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:01:57,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (1/1) ... [2018-09-20 15:01:57,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:01:57,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:01:57,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:01:57,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:01:57,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (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 [2018-09-20 15:01:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:01:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:01:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:01:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:01:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:01:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:01:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:01:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:01:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:01:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:01:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:01:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:01:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:01:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:01:58,733 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:01:58,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:58 BoogieIcfgContainer [2018-09-20 15:01:58,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:01:58,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:01:58,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:01:58,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:01:58,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:01:57" (1/3) ... [2018-09-20 15:01:58,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90d641d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:58, skipping insertion in model container [2018-09-20 15:01:58,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:01:57" (2/3) ... [2018-09-20 15:01:58,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90d641d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:01:58, skipping insertion in model container [2018-09-20 15:01:58,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:58" (3/3) ... [2018-09-20 15:01:58,743 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a_true-unreach-call.c [2018-09-20 15:01:58,754 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:01:58,764 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:01:58,810 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:01:58,811 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:01:58,811 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:01:58,811 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:01:58,811 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:01:58,812 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:01:58,812 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:01:58,812 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:01:58,812 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:01:58,836 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-20 15:01:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 15:01:58,845 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:58,846 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:01:58,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:58,855 INFO L82 PathProgramCache]: Analyzing trace with hash -141193166, now seen corresponding path program 1 times [2018-09-20 15:01:58,857 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:58,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:58,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:58,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:58,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:01:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:01:59,007 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:01:59,007 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:01:59,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:01:59,022 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:01:59,023 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:01:59,025 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-09-20 15:01:59,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:01:59,055 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2018-09-20 15:01:59,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:01:59,056 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 15:01:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:01:59,067 INFO L225 Difference]: With dead ends: 138 [2018-09-20 15:01:59,068 INFO L226 Difference]: Without dead ends: 69 [2018-09-20 15:01:59,072 INFO L606 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 [2018-09-20 15:01:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-20 15:01:59,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-09-20 15:01:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-20 15:01:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2018-09-20 15:01:59,120 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 19 [2018-09-20 15:01:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:01:59,120 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2018-09-20 15:01:59,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:01:59,120 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-09-20 15:01:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:01:59,123 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:01:59,123 INFO L376 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] [2018-09-20 15:01:59,123 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:01:59,124 INFO L82 PathProgramCache]: Analyzing trace with hash 801598628, now seen corresponding path program 1 times [2018-09-20 15:01:59,124 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:01:59,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:01:59,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:59,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:01:59,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:01:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:01:59,319 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:01:59,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:01:59 BoogieIcfgContainer [2018-09-20 15:01:59,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:01:59,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:01:59,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:01:59,369 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:01:59,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:01:58" (3/4) ... [2018-09-20 15:01:59,375 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:01:59,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:01:59,377 INFO L168 Benchmark]: Toolchain (without parser) took 1866.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -128.0 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:59,380 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:59,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:59,381 INFO L168 Benchmark]: Boogie Preprocessor took 46.16 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:59,383 INFO L168 Benchmark]: RCFGBuilder took 799.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:59,384 INFO L168 Benchmark]: TraceAbstraction took 632.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:01:59,386 INFO L168 Benchmark]: Witness Printer took 7.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:01:59,392 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.16 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 799.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 632.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 90, overapproximation of shiftRight at line 34, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L86] double x = 0.0; VAL [x=0] [L87] CALL, EXPR round_double(x) VAL [\old(x)=0] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=0, x=0] [L21] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={6442450947:0}, x=0] [L22] FCALL ew_u.value = (x) VAL [\old(x)=0, ew_u={6442450947:0}, x=0] [L23] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=0, ew_u={6442450947:0}, ew_u.parts.msw=6442450943, x=0] [L23] (msw) = ew_u.parts.msw VAL [\old(x)=0, ew_u={6442450947:0}, ew_u.parts.msw=6442450943, msw=2147483647, x=0] [L23] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=6442450944, \old(x)=0, ew_u={6442450947:0}, ew_u.parts.msw=6442450943, msw=2147483647, x=0] [L24] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=0, ew_u={6442450947:0}, ew_u.parts.lsw=0, msw=2147483647, x=0] [L24] (lsw) = ew_u.parts.lsw VAL [\old(x)=0, ew_u={6442450947:0}, ew_u.parts.lsw=0, lsw=0, msw=2147483647, x=0] [L24] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=6442450946, \old(x)=0, ew_u={6442450947:0}, ew_u.parts.lsw=0, lsw=0, msw=2147483647, x=0] [L25] COND FALSE !(0) VAL [\old(x)=0, lsw=0, msw=2147483647, x=0] [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=2147483647, x=0] [L27] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=2147483647, x=0] [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=2147483647, x=0] [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] RET return x; VAL [\old(x)=0, \result=0, exponent_less_1023=0, lsw=0, msw=2147483647, x=0] [L87] EXPR round_double(x) VAL [round_double(x)=0, x=0] [L87] double res = round_double(x); [L90] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L90] COND FALSE, EXPR !(res == 0.0 && __signbit_double(res) == 0) VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L90] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L91] __VERIFIER_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:02:01,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:02:01,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:02:01,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:02:01,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:02:01,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:02:01,828 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:02:01,830 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:02:01,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:02:01,833 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:02:01,834 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:02:01,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:02:01,837 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:02:01,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:02:01,841 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:02:01,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:02:01,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:02:01,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:02:01,855 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:02:01,856 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:02:01,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:02:01,861 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:02:01,864 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:02:01,864 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:02:01,864 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:02:01,865 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:02:01,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:02:01,871 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:02:01,872 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:02:01,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:02:01,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:02:01,878 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:02:01,878 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:02:01,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:02:01,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:02:01,881 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:02:01,881 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:02:01,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:02:01,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:02:01,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:02:01,906 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:02:01,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:02:01,909 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:02:01,909 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:02:01,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:02:01,909 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:02:01,910 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:02:01,910 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:02:01,910 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:02:01,910 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:02:01,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:02:01,911 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:02:01,911 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:02:01,911 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:02:01,911 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:02:01,911 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:02:01,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:02:01,913 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:02:01,913 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:02:01,913 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:02:01,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:02:01,914 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:02:01,914 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:02:01,914 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:02:01,915 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:02:01,915 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:02:01,915 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:02:01,916 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:02:01,916 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d [2018-09-20 15:02:01,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:02:02,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:02:02,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:02:02,016 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:02:02,016 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:02:02,017 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-09-20 15:02:02,375 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dec95e44/31b25df4f3c94eebb0c50196e144b051/FLAGfe01e8556 [2018-09-20 15:02:02,612 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:02:02,613 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-09-20 15:02:02,621 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dec95e44/31b25df4f3c94eebb0c50196e144b051/FLAGfe01e8556 [2018-09-20 15:02:02,638 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dec95e44/31b25df4f3c94eebb0c50196e144b051 [2018-09-20 15:02:02,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:02:02,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:02:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:02,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:02:02,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:02:02,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:02" (1/1) ... [2018-09-20 15:02:02,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df94ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:02, skipping insertion in model container [2018-09-20 15:02:02,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:02:02" (1/1) ... [2018-09-20 15:02:02,669 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:02:02,927 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:02,947 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:02:02,970 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:02:03,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03 WrapperNode [2018-09-20 15:02:03,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:02:03,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:02:03,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:02:03,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:02:03,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (1/1) ... [2018-09-20 15:02:03,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:02:03,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:02:03,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:02:03,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:02:03,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (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 [2018-09-20 15:02:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:02:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:02:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:02:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-09-20 15:02:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-20 15:02:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:02:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:02:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:02:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-09-20 15:02:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-20 15:02:03,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:02:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:02:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:02:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:02:03,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:02:03,413 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:03,466 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:03,684 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:03,703 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:03,717 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:02:03,937 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:02:03,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:03 BoogieIcfgContainer [2018-09-20 15:02:03,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:02:03,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:02:03,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:02:03,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:02:03,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:02:02" (1/3) ... [2018-09-20 15:02:03,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3ec64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:03, skipping insertion in model container [2018-09-20 15:02:03,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:02:03" (2/3) ... [2018-09-20 15:02:03,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3ec64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:02:03, skipping insertion in model container [2018-09-20 15:02:03,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:03" (3/3) ... [2018-09-20 15:02:03,948 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a_true-unreach-call.c [2018-09-20 15:02:03,959 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:02:03,971 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:02:04,023 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:02:04,023 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:02:04,024 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:02:04,024 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:02:04,024 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:02:04,024 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:02:04,025 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:02:04,025 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:02:04,025 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:02:04,048 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-20 15:02:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-20 15:02:04,056 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:04,058 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:04,061 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:04,066 INFO L82 PathProgramCache]: Analyzing trace with hash -141193166, now seen corresponding path program 1 times [2018-09-20 15:02:04,072 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:04,072 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:04,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:04,173 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:04,193 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:04,207 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:04,207 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:02:04,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:02:04,223 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:02:04,224 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:04,227 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-09-20 15:02:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:04,255 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2018-09-20 15:02:04,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:02:04,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-20 15:02:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:04,268 INFO L225 Difference]: With dead ends: 138 [2018-09-20 15:02:04,268 INFO L226 Difference]: Without dead ends: 69 [2018-09-20 15:02:04,272 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:02:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-20 15:02:04,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-09-20 15:02:04,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-20 15:02:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2018-09-20 15:02:04,319 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 19 [2018-09-20 15:02:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:04,320 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2018-09-20 15:02:04,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:02:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2018-09-20 15:02:04,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:02:04,322 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:04,322 INFO L376 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] [2018-09-20 15:02:04,322 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:04,323 INFO L82 PathProgramCache]: Analyzing trace with hash 801598628, now seen corresponding path program 1 times [2018-09-20 15:02:04,323 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:04,323 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:04,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:04,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:04,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:04,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:04,637 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,693 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:04,694 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:04,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:04,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:04,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,754 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:04,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:04,773 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:05,295 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:05,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:05,309 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:05,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:05,311 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:05,312 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:05,312 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand 9 states. [2018-09-20 15:02:05,841 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:02:06,849 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:02:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:08,821 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2018-09-20 15:02:08,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-20 15:02:08,823 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-20 15:02:08,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:08,825 INFO L225 Difference]: With dead ends: 123 [2018-09-20 15:02:08,825 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:08,827 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2018-09-20 15:02:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:08,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2018-09-20 15:02:08,835 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 32 [2018-09-20 15:02:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:08,836 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2018-09-20 15:02:08,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:08,836 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2018-09-20 15:02:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:02:08,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:08,838 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:08,838 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:08,839 INFO L82 PathProgramCache]: Analyzing trace with hash -454012241, now seen corresponding path program 1 times [2018-09-20 15:02:08,840 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:08,840 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:08,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:08,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:09,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:09,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:09,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:09,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:09,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:09,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:09,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:09,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:09,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:09,117 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:09,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:09,129 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:09,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:09,385 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:09,386 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:02:09,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:02:09,389 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:02:09,389 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:02:09,389 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 9 states. [2018-09-20 15:02:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:11,041 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2018-09-20 15:02:11,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:02:11,043 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2018-09-20 15:02:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:11,046 INFO L225 Difference]: With dead ends: 100 [2018-09-20 15:02:11,046 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:11,048 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-09-20 15:02:11,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-09-20 15:02:11,058 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 46 [2018-09-20 15:02:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:11,059 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-09-20 15:02:11,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:02:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-09-20 15:02:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-20 15:02:11,061 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:11,062 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:11,062 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:11,062 INFO L82 PathProgramCache]: Analyzing trace with hash -31310415, now seen corresponding path program 1 times [2018-09-20 15:02:11,064 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:11,064 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:11,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:11,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:11,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-09-20 15:02:11,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-09-20 15:02:11,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:11,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2018-09-20 15:02:11,302 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-09-20 15:02:11,308 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:11,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 25 [2018-09-20 15:02:11,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,329 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,342 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:11,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-20 15:02:11,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2018-09-20 15:02:11,435 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:11,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2018-09-20 15:02:11,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:11,457 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:11,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:21 [2018-09-20 15:02:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:11,643 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:11,654 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:11,654 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-20 15:02:11,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-20 15:02:11,655 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-20 15:02:11,655 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-20 15:02:11,656 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 11 states. [2018-09-20 15:02:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:12,516 INFO L93 Difference]: Finished difference Result 66 states and 65 transitions. [2018-09-20 15:02:12,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:02:12,519 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2018-09-20 15:02:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:12,520 INFO L225 Difference]: With dead ends: 66 [2018-09-20 15:02:12,520 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:02:12,521 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:02:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:02:12,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:02:12,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:02:12,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 62 transitions. [2018-09-20 15:02:12,528 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 62 transitions. Word has length 46 [2018-09-20 15:02:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:12,529 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 62 transitions. [2018-09-20 15:02:12,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-20 15:02:12,529 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 62 transitions. [2018-09-20 15:02:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-20 15:02:12,537 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:02:12,538 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:02:12,538 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:02:12,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1741989352, now seen corresponding path program 1 times [2018-09-20 15:02:12,539 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:02:12,539 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:02:12,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:02:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:02:12,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:02:12,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:12,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:12,739 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:12,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:12,768 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:12,769 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:12,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:12,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:12,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:12,848 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:12,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:12,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:12,997 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-09-20 15:02:13,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-09-20 15:02:13,022 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:13,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:13,117 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:13,117 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-20 15:02:13,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2018-09-20 15:02:13,223 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:13,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-09-20 15:02:13,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:13,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:13,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:13,342 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:22 [2018-09-20 15:02:13,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2018-09-20 15:02:13,374 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:02:13,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2018-09-20 15:02:13,383 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:13,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:13,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:13,416 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:34 [2018-09-20 15:02:14,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-20 15:02:14,184 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-20 15:02:14,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:14,190 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:14,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:14,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:02:14,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-20 15:02:14,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-20 15:02:14,391 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:02:14,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:02:14,408 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:02:14,408 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:02:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:02:15,067 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:02:15,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:02:15,083 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-20 15:02:15,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-20 15:02:15,084 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-20 15:02:15,084 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:02:15,085 INFO L87 Difference]: Start difference. First operand 63 states and 62 transitions. Second operand 21 states. [2018-09-20 15:02:22,610 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-20 15:02:22,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:02:22,998 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2018-09-20 15:02:22,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-20 15:02:22,999 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 62 [2018-09-20 15:02:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:02:22,999 INFO L225 Difference]: With dead ends: 63 [2018-09-20 15:02:22,999 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:02:23,001 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=171, Invalid=1635, Unknown=0, NotChecked=0, Total=1806 [2018-09-20 15:02:23,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:02:23,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:02:23,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:02:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:02:23,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-09-20 15:02:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:02:23,003 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:02:23,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-20 15:02:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:02:23,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:02:23,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:02:23,182 INFO L426 ceAbstractionStarter]: For program point isnan_doubleENTRY(line 15) no Hoare annotation was computed. [2018-09-20 15:02:23,182 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:02:23,182 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:02:23,183 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:23,183 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:23,183 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:23,183 INFO L426 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2018-09-20 15:02:23,183 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2018-09-20 15:02:23,183 INFO L426 ceAbstractionStarter]: For program point round_doubleFINAL(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L429 ceAbstractionStarter]: At program point round_doubleENTRY(lines 17 64) the Hoare annotation is: true [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-20 15:02:23,184 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L61-1(line 61) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L61-3(line 61) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L57-2(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point round_doubleEXIT(lines 17 64) no Hoare annotation was computed. [2018-09-20 15:02:23,185 INFO L426 ceAbstractionStarter]: For program point L24-2(line 24) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L57-3(lines 57 62) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L24-3(line 24) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L422 ceAbstractionStarter]: At program point L20-3(lines 20 25) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L20-4(lines 20 25) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2018-09-20 15:02:23,186 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L58-1(line 58) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L58-3(line 58) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2018-09-20 15:02:23,187 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point L69-4(lines 69 73) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 66 76) no Hoare annotation was computed. [2018-09-20 15:02:23,188 INFO L426 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 66 76) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L429 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 66 76) the Hoare annotation is: true [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L72-1(line 72) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L72-2(line 72) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L70-1(line 70) no Hoare annotation was computed. [2018-09-20 15:02:23,190 INFO L426 ceAbstractionStarter]: For program point L70-2(line 70) no Hoare annotation was computed. [2018-09-20 15:02:23,191 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 69 73) no Hoare annotation was computed. [2018-09-20 15:02:23,191 INFO L426 ceAbstractionStarter]: For program point L70-3(line 70) no Hoare annotation was computed. [2018-09-20 15:02:23,191 INFO L422 ceAbstractionStarter]: At program point L69-3(lines 69 73) the Hoare annotation is: (= |__signbit_double_#in~x| __signbit_double_~x) [2018-09-20 15:02:23,191 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:02:23,191 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:02:23,191 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:02:23,191 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:02:23,191 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-09-20 15:02:23,191 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-20 15:02:23,191 INFO L426 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-09-20 15:02:23,192 INFO L422 ceAbstractionStarter]: At program point L90-1(line 90) the Hoare annotation is: (and (exists ((v_arrayElimCell_13 (_ BitVec 32)) (|v_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (let ((.cse0 (concat (bvand ((_ extract 63 32) |v_q#valueAsBitvector_8|) (_ bv2147483648 32)) v_arrayElimCell_13))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_q#valueAsBitvector_8|) ((_ extract 62 52) |v_q#valueAsBitvector_8|) ((_ extract 51 0) |v_q#valueAsBitvector_8|))))) (= (_ +zero 11 53) main_~x~0) |main_#t~short10|) [2018-09-20 15:02:23,192 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-09-20 15:02:23,192 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-09-20 15:02:23,192 INFO L426 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-09-20 15:02:23,192 INFO L422 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (_ +zero 11 53) main_~x~0) [2018-09-20 15:02:23,192 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:02:23,193 INFO L426 ceAbstractionStarter]: For program point L90-4(lines 90 93) no Hoare annotation was computed. [2018-09-20 15:02:23,193 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-09-20 15:02:23,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:02:23 BoogieIcfgContainer [2018-09-20 15:02:23,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:02:23,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:02:23,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:02:23,208 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:02:23,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:02:03" (3/4) ... [2018-09-20 15:02:23,212 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:02:23,220 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:02:23,220 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:02:23,221 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-09-20 15:02:23,221 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-20 15:02:23,221 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:02:23,229 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:02:23,230 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:02:23,230 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:02:23,259 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:23,259 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:02:23,314 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:02:23,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:02:23,315 INFO L168 Benchmark]: Toolchain (without parser) took 20672.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 951.8 MB in the beginning and 978.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 188.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:23,316 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:23,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:23,317 INFO L168 Benchmark]: Boogie Preprocessor took 51.43 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:23,318 INFO L168 Benchmark]: RCFGBuilder took 879.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:23,318 INFO L168 Benchmark]: TraceAbstraction took 19268.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 978.2 MB in the end (delta: 136.5 MB). Peak memory consumption was 204.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:02:23,319 INFO L168 Benchmark]: Witness Printer took 106.27 ms. Allocated memory is still 1.2 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:02:23,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.43 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 879.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19268.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 67.6 MB). Free memory was 1.1 GB in the beginning and 978.2 MB in the end (delta: 136.5 MB). Peak memory consumption was 204.2 MB. Max. memory is 11.5 GB. * Witness Printer took 106.27 ms. Allocated memory is still 1.2 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. SAFE Result, 19.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 14.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 285 SDtfs, 300 SDslu, 1553 SDs, 0 SdLazy, 807 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 55 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 200 ConstructedInterpolants, 110 QuantifiedInterpolants, 117283 SizeOfPredicates, 45 NumberOfNonLiveVariables, 396 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...