/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0921_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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_0921_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 183c064a530646119ada233c15fa830a0c2bc1a1 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ..................................................................................................................................................................................................................................................................................................................... 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_0921_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 183c064a530646119ada233c15fa830a0c2bc1a1 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:06:31,027 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:06:31,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:06:31,052 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:06:31,053 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:06:31,054 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:06:31,055 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:06:31,057 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:06:31,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:06:31,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:06:31,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:06:31,061 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:06:31,062 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:06:31,063 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:06:31,064 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:06:31,064 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:06:31,065 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:06:31,067 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:06:31,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:06:31,071 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:06:31,073 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:06:31,074 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:06:31,077 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:06:31,077 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:06:31,077 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:06:31,078 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:06:31,080 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:06:31,080 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:06:31,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:06:31,083 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:06:31,083 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:06:31,084 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:06:31,084 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:06:31,088 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:06:31,089 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:06:31,090 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:06:31,094 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:06:31,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:06:31,126 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:06:31,127 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:06:31,128 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:06:31,129 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:06:31,130 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:06:31,130 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:06:31,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:06:31,130 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:06:31,131 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:06:31,131 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:06:31,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:06:31,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:06:31,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:06:31,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:06:31,133 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:06:31,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:06:31,134 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:06:31,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:06:31,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:06:31,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:06:31,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:06:31,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:06:31,137 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:06:31,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:06:31,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:06:31,138 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:06:31,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:06:31,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:06:31,138 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 -> 183c064a530646119ada233c15fa830a0c2bc1a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:06:31,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:06:31,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:06:31,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:06:31,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:06:31,239 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:06:31,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0921_true-unreach-call.c [2018-09-21 18:06:31,608 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e6a85351/74242cd59557410e8d22886239837766/FLAG23b9eafb0 [2018-09-21 18:06:31,795 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:06:31,796 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0921_true-unreach-call.c [2018-09-21 18:06:31,804 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e6a85351/74242cd59557410e8d22886239837766/FLAG23b9eafb0 [2018-09-21 18:06:31,821 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e6a85351/74242cd59557410e8d22886239837766 [2018-09-21 18:06:31,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:06:31,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:06:31,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:06:31,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:06:31,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:06:31,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:06:31" (1/1) ... [2018-09-21 18:06:31,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f73cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:31, skipping insertion in model container [2018-09-21 18:06:31,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:06:31" (1/1) ... [2018-09-21 18:06:31,855 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:06:32,150 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:06:32,175 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:06:32,249 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:06:32,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32 WrapperNode [2018-09-21 18:06:32,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:06:32,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:06:32,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:06:32,297 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:06:32,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (1/1) ... [2018-09-21 18:06:32,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:06:32,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:06:32,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:06:32,366 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:06:32,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (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 [2018-09-21 18:06:32,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:06:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:06:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:06:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-09-21 18:06:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:06:32,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:06:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:06:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:06:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:06:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:06:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:06:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:06:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:06:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-09-21 18:06:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:06:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:06:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:06:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:06:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:06:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:06:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:06:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:06:33,382 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:06:33,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:06:33 BoogieIcfgContainer [2018-09-21 18:06:33,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:06:33,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:06:33,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:06:33,392 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:06:33,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:06:31" (1/3) ... [2018-09-21 18:06:33,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff2ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:06:33, skipping insertion in model container [2018-09-21 18:06:33,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:32" (2/3) ... [2018-09-21 18:06:33,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff2ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:06:33, skipping insertion in model container [2018-09-21 18:06:33,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:06:33" (3/3) ... [2018-09-21 18:06:33,399 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921_true-unreach-call.c [2018-09-21 18:06:33,411 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:06:33,425 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:06:33,478 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:06:33,478 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:06:33,479 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:06:33,479 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:06:33,479 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:06:33,479 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:06:33,480 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:06:33,481 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:06:33,481 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:06:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2018-09-21 18:06:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:06:33,514 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:33,516 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] [2018-09-21 18:06:33,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:33,525 INFO L82 PathProgramCache]: Analyzing trace with hash -53997314, now seen corresponding path program 1 times [2018-09-21 18:06:33,527 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:06:33,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:06:33,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:06:33,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:06:33,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:06:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:06:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:06:33,706 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:06:33,706 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:06:33,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:06:33,723 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:06:33,724 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:06:33,726 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2018-09-21 18:06:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:06:33,747 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2018-09-21 18:06:33,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:06:33,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:06:33,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:06:33,763 INFO L225 Difference]: With dead ends: 72 [2018-09-21 18:06:33,763 INFO L226 Difference]: Without dead ends: 68 [2018-09-21 18:06:33,765 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 [2018-09-21 18:06:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-09-21 18:06:33,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-09-21 18:06:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-21 18:06:33,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2018-09-21 18:06:33,808 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 22 [2018-09-21 18:06:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:06:33,808 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2018-09-21 18:06:33,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:06:33,809 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2018-09-21 18:06:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:06:33,811 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:06:33,811 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] [2018-09-21 18:06:33,812 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:06:33,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1695125634, now seen corresponding path program 1 times [2018-09-21 18:06:33,812 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:06:33,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:06:33,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:06:33,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:06:33,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:06:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:06:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:06:33,970 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:06:34,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:06:34 BoogieIcfgContainer [2018-09-21 18:06:34,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:06:34,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:06:34,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:06:34,046 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:06:34,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:06:33" (3/4) ... [2018-09-21 18:06:34,053 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:06:34,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:06:34,056 INFO L168 Benchmark]: Toolchain (without parser) took 2230.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:06:34,059 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-21 18:06:34,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.23 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:06:34,060 INFO L168 Benchmark]: Boogie Preprocessor took 68.62 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:06:34,061 INFO L168 Benchmark]: RCFGBuilder took 1017.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:06:34,062 INFO L168 Benchmark]: TraceAbstraction took 659.94 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:06:34,063 INFO L168 Benchmark]: Witness Printer took 9.51 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. [2018-09-21 18:06:34,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 466.23 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.62 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1017.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 659.94 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Witness Printer took 9.51 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: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 127, overapproximation of someBinaryArithmeticDOUBLEoperation at line 72. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=6441402386, \old(Lg2_log)=6441402389, \old(Lg3_log)=6441402371, \old(Lg4_log)=6441402374, \old(Lg5_log)=6441402375, \old(Lg6_log)=6441402383, \old(Lg7_log)=6441402382, \old(ln2_hi_log)=6441402373, \old(ln2_lo_log)=6441402377, \old(two54_log)=6441402384, \old(zero)=6441402387, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double x = 0.0 / 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L136] CALL, EXPR __ieee754_log(x) VAL [\old(x)=6441402388, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=6441402388, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L51] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6441402388, ew_u={6441402380:0}, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L52] FCALL ew_u.value = (x) VAL [\old(x)=6441402388, ew_u={6441402380:0}, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L53] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6441402388, ew_u={6441402380:0}, ew_u.parts.msw=6441402370, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L53] (hx) = ew_u.parts.msw VAL [\old(x)=6441402388, ew_u={6441402380:0}, ew_u.parts.msw=6441402370, hx=2146435074, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L53] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=6441402385, \old(x)=6441402388, ew_u={6441402380:0}, ew_u.parts.msw=6441402370, hx=2146435074, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L54] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6441402388, ew_u={6441402380:0}, ew_u.parts.lsw=6441402381, hx=2146435074, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L54] (lx) = ew_u.parts.lsw VAL [\old(x)=6441402388, ew_u={6441402380:0}, ew_u.parts.lsw=6441402381, hx=2146435074, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2146435085, two54_log=18014398509481984, x=6441402388, zero=0] [L54] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=6441402379, \old(x)=6441402388, ew_u={6441402380:0}, ew_u.parts.lsw=6441402381, hx=2146435074, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2146435085, two54_log=18014398509481984, x=6441402388, zero=0] [L55] COND FALSE !(0) VAL [\old(x)=6441402388, hx=2146435074, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2146435085, two54_log=18014398509481984, x=6441402388, zero=0] [L57] k = 0 VAL [\old(x)=6441402388, hx=2146435074, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2146435085, two54_log=18014398509481984, x=6441402388, zero=0] [L58] COND FALSE !(hx < 0x00100000) VAL [\old(x)=6441402388, hx=2146435074, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2146435085, two54_log=18014398509481984, x=6441402388, zero=0] [L71] COND TRUE hx >= 0x7ff00000 [L72] RET return x + x; VAL [\old(x)=6441402388, hx=2146435074, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2146435085, two54_log=18014398509481984, x=6441402388, zero=0] [L136] EXPR __ieee754_log(x) VAL [__ieee754_log(x)=6441402376, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402388, zero=0] [L136] double res = __ieee754_log(x); [L139] CALL, EXPR isnan_double(res) VAL [\old(x)=6441402376, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L127] RET return x != x; VAL [\old(x)=6441402376, \result=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=6441402376, zero=0] [L139] EXPR isnan_double(res) VAL [isnan_double(res)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=6441402376, two54_log=18014398509481984, x=6441402388, zero=0] [L139] COND TRUE !isnan_double(res) [L140] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=6441402376, two54_log=18014398509481984, x=6441402388, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 90 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 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=72occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-5eb3fea [2018-09-21 18:06:36,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:06:36,490 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:06:36,505 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:06:36,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:06:36,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:06:36,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:06:36,513 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:06:36,515 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:06:36,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:06:36,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:06:36,519 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:06:36,520 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:06:36,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:06:36,524 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:06:36,524 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:06:36,525 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:06:36,527 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:06:36,529 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:06:36,531 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:06:36,532 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:06:36,534 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:06:36,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:06:36,537 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:06:36,537 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:06:36,538 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:06:36,539 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:06:36,540 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:06:36,541 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:06:36,543 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:06:36,543 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:06:36,544 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:06:36,544 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:06:36,544 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:06:36,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:06:36,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:06:36,547 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:06:36,564 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:06:36,564 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:06:36,565 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:06:36,566 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:06:36,566 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:06:36,566 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:06:36,567 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:06:36,567 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:06:36,567 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:06:36,567 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:06:36,569 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:06:36,569 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:06:36,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:06:36,569 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:06:36,569 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:06:36,570 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:06:36,570 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:06:36,570 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:06:36,570 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:06:36,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:06:36,572 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:06:36,572 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:06:36,572 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:06:36,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:06:36,572 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:06:36,573 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:06:36,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:06:36,573 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:06:36,573 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:06:36,574 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:06:36,575 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:06:36,575 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 -> 183c064a530646119ada233c15fa830a0c2bc1a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:06:36,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:06:36,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:06:36,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:06:36,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:06:36,648 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:06:36,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0921_true-unreach-call.c [2018-09-21 18:06:37,008 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3439d7bdd/a6446813ac964d5e9468564891bfb7fd/FLAGf5b0a9772 [2018-09-21 18:06:37,213 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:06:37,219 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0921_true-unreach-call.c [2018-09-21 18:06:37,231 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3439d7bdd/a6446813ac964d5e9468564891bfb7fd/FLAGf5b0a9772 [2018-09-21 18:06:37,255 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3439d7bdd/a6446813ac964d5e9468564891bfb7fd [2018-09-21 18:06:37,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:06:37,265 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:06:37,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:06:37,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:06:37,277 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:06:37,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498284b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37, skipping insertion in model container [2018-09-21 18:06:37,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,296 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:06:37,633 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:06:37,651 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:06:37,691 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:06:37,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37 WrapperNode [2018-09-21 18:06:37,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:06:37,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:06:37,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:06:37,739 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:06:37,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... [2018-09-21 18:06:37,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:06:37,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:06:37,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:06:37,829 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:06:37,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:06:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:06:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:06:37,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:06:37,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-09-21 18:06:37,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:06:37,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:06:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:06:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:06:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:06:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:06:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:06:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:06:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:06:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-09-21 18:06:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:06:38,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:06:38,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:06:38,311 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:38,334 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:38,358 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:43,785 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:43,807 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:06:43,919 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:07:03,320 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:07:03,350 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:07:03,492 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:07:03,626 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:07:03,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:07:03 BoogieIcfgContainer [2018-09-21 18:07:03,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:07:03,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:07:03,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:07:03,632 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:07:03,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:06:37" (1/3) ... [2018-09-21 18:07:03,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100975c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:07:03, skipping insertion in model container [2018-09-21 18:07:03,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:06:37" (2/3) ... [2018-09-21 18:07:03,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100975c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:07:03, skipping insertion in model container [2018-09-21 18:07:03,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:07:03" (3/3) ... [2018-09-21 18:07:03,636 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921_true-unreach-call.c [2018-09-21 18:07:03,644 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:07:03,654 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:07:03,696 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:07:03,697 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:07:03,697 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:07:03,697 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:07:03,698 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:07:03,698 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:07:03,698 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:07:03,698 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:07:03,698 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:07:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-09-21 18:07:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:07:03,738 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:07:03,739 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] [2018-09-21 18:07:03,742 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:07:03,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1625194884, now seen corresponding path program 1 times [2018-09-21 18:07:03,752 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:07:03,753 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 [2018-09-21 18:07:03,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:07:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:07:03,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:07:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:07:03,939 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:07:03,958 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:07:03,959 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:07:03,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:07:03,977 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:07:03,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:07:03,980 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-09-21 18:07:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:07:04,001 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-09-21 18:07:04,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:07:04,003 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:07:04,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:07:04,017 INFO L225 Difference]: With dead ends: 71 [2018-09-21 18:07:04,017 INFO L226 Difference]: Without dead ends: 67 [2018-09-21 18:07:04,019 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:07:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-09-21 18:07:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-09-21 18:07:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-21 18:07:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2018-09-21 18:07:04,070 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 21 [2018-09-21 18:07:04,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:07:04,071 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2018-09-21 18:07:04,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:07:04,071 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2018-09-21 18:07:04,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-21 18:07:04,074 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:07:04,075 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] [2018-09-21 18:07:04,076 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:07:04,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1344150332, now seen corresponding path program 1 times [2018-09-21 18:07:04,077 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:07:04,077 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 [2018-09-21 18:07:04,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:07:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:07:04,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:07:05,042 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-21 18:07:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:07:06,672 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:07:06,684 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:07:06,684 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:07:06,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:07:06,686 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:07:06,686 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:07:06,687 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand 9 states. [2018-09-21 18:07:09,841 WARN L178 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 8 [2018-09-21 18:07:34,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:07:34,654 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2018-09-21 18:07:34,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:07:34,779 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-09-21 18:07:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:07:34,783 INFO L225 Difference]: With dead ends: 81 [2018-09-21 18:07:34,783 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 18:07:34,785 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:07:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 18:07:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2018-09-21 18:07:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-21 18:07:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2018-09-21 18:07:34,799 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 34 [2018-09-21 18:07:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:07:34,800 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2018-09-21 18:07:34,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:07:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2018-09-21 18:07:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-21 18:07:34,802 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:07:34,802 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] [2018-09-21 18:07:34,802 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:07:34,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1086434819, now seen corresponding path program 1 times [2018-09-21 18:07:34,804 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:07:34,804 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 [2018-09-21 18:07:34,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:07:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:07:35,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:07:35,823 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 [2018-09-21 18:07:35,830 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 [2018-09-21 18:07:35,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:07:35,838 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:07:35,855 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. [2018-09-21 18:07:35,855 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:07:35,908 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 [2018-09-21 18:07:35,919 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 [2018-09-21 18:07:35,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:07:35,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:07:35,937 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. [2018-09-21 18:07:35,938 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:07:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:07:36,197 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:07:36,224 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:07:36,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:07:36,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:07:36,226 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:07:36,226 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:07:36,226 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand 8 states. [2018-09-21 18:07:36,826 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:07:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:07:49,792 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2018-09-21 18:07:49,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:07:49,795 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-09-21 18:07:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:07:49,797 INFO L225 Difference]: With dead ends: 78 [2018-09-21 18:07:49,797 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 18:07:49,798 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:07:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 18:07:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2018-09-21 18:07:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-21 18:07:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2018-09-21 18:07:49,807 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 34 [2018-09-21 18:07:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:07:49,808 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2018-09-21 18:07:49,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:07:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2018-09-21 18:07:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:07:49,810 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:07:49,811 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] [2018-09-21 18:07:49,811 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:07:49,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1106518318, now seen corresponding path program 1 times [2018-09-21 18:07:49,812 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:07:49,812 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 [2018-09-21 18:07:49,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:07:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:07:50,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:07:55,437 WARN L178 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 10 [2018-09-21 18:07:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:07:55,840 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:07:55,863 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:07:55,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:07:55,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:07:55,864 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:07:55,864 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:07:55,867 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand 10 states. [2018-09-21 18:08:05,851 WARN L178 SmtUtils]: Spent 6.28 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:08:27,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:08:27,459 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2018-09-21 18:08:27,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 18:08:27,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-09-21 18:08:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:08:27,463 INFO L225 Difference]: With dead ends: 81 [2018-09-21 18:08:27,464 INFO L226 Difference]: Without dead ends: 76 [2018-09-21 18:08:27,464 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:08:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-21 18:08:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 68. [2018-09-21 18:08:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-21 18:08:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2018-09-21 18:08:27,474 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 35 [2018-09-21 18:08:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:08:27,474 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2018-09-21 18:08:27,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:08:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2018-09-21 18:08:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-21 18:08:27,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:08:27,477 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] [2018-09-21 18:08:27,477 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:08:27,478 INFO L82 PathProgramCache]: Analyzing trace with hash -410166871, now seen corresponding path program 1 times [2018-09-21 18:08:27,479 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:08:27,479 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 [2018-09-21 18:08:27,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:08:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:08:27,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:08:27,935 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 [2018-09-21 18:08:27,942 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 [2018-09-21 18:08:27,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:08:27,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:08:27,968 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. [2018-09-21 18:08:27,969 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:08:28,014 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 [2018-09-21 18:08:28,020 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 [2018-09-21 18:08:28,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:08:28,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:08:28,035 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. [2018-09-21 18:08:28,035 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:08:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:08:28,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:08:28,318 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:08:28,318 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:08:28,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:08:28,319 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:08:28,319 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:08:28,319 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 9 states. [2018-09-21 18:08:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:08:40,011 INFO L93 Difference]: Finished difference Result 90 states and 104 transitions. [2018-09-21 18:08:40,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:08:40,012 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2018-09-21 18:08:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:08:40,014 INFO L225 Difference]: With dead ends: 90 [2018-09-21 18:08:40,014 INFO L226 Difference]: Without dead ends: 55 [2018-09-21 18:08:40,015 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:08:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-09-21 18:08:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-09-21 18:08:40,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-21 18:08:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2018-09-21 18:08:40,022 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 46 [2018-09-21 18:08:40,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:08:40,023 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2018-09-21 18:08:40,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:08:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2018-09-21 18:08:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:08:40,025 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:08:40,025 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] [2018-09-21 18:08:40,025 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:08:40,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2068782911, now seen corresponding path program 1 times [2018-09-21 18:08:40,026 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:08:40,026 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:08:40,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:08:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:08:43,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:08:43,986 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 [2018-09-21 18:08:43,993 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 [2018-09-21 18:08:43,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:08:43,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:08:44,022 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. [2018-09-21 18:08:44,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:08:44,069 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 [2018-09-21 18:08:44,083 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 [2018-09-21 18:08:44,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:08:44,088 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:08:44,100 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. [2018-09-21 18:08:44,100 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:08:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:08:44,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:08:44,480 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:08:44,481 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:08:44,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:08:44,483 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:08:44,483 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:08:44,483 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 9 states. [2018-09-21 18:08:45,256 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:08:52,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:08:52,575 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2018-09-21 18:08:52,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:08:52,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-21 18:08:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:08:52,577 INFO L225 Difference]: With dead ends: 47 [2018-09-21 18:08:52,578 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:08:52,578 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:08:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:08:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:08:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:08:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:08:52,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-21 18:08:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:08:52,579 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:08:52,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:08:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:08:52,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:08:52,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:08:52 BoogieIcfgContainer [2018-09-21 18:08:52,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:08:52,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:08:52,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:08:52,588 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:08:52,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:07:03" (3/4) ... [2018-09-21 18:08:52,593 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:08:52,599 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:08:52,599 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:08:52,599 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log [2018-09-21 18:08:52,599 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-21 18:08:52,600 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:08:52,606 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-09-21 18:08:52,607 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-09-21 18:08:52,607 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:08:52,608 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:08:52,678 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:08:52,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:08:52,679 INFO L168 Benchmark]: Toolchain (without parser) took 135417.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 883.4 kB. Max. memory is 11.5 GB. [2018-09-21 18:08:52,681 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-21 18:08:52,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:08:52,682 INFO L168 Benchmark]: Boogie Preprocessor took 88.97 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:08:52,682 INFO L168 Benchmark]: RCFGBuilder took 25798.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:08:52,683 INFO L168 Benchmark]: TraceAbstraction took 108959.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -76.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:08:52,685 INFO L168 Benchmark]: Witness Printer took 90.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:08:52,689 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 471.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.97 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 25798.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 108959.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -76.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 90.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. SAFE Result, 108.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 93.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 410 SDtfs, 237 SDslu, 1827 SDs, 0 SdLazy, 450 SolverSat, 30 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 73.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 214 ConstructedInterpolants, 76 QuantifiedInterpolants, 77230 SizeOfPredicates, 30 NumberOfNonLiveVariables, 653 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...