/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970a_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/float_req_bl_0970a_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 963536477b49c0268678cb8326bb32feb993b05a --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/float_req_bl_0970a_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 963536477b49c0268678cb8326bb32feb993b05a --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 18:36:39,929 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:36:39,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:36:39,944 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:36:39,944 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:36:39,945 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:36:39,947 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:36:39,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:36:39,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:36:39,952 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:36:39,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:36:39,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:36:39,955 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:36:39,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:36:39,957 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:36:39,958 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:36:39,959 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:36:39,961 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:36:39,964 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:36:39,966 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:36:39,967 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:36:39,968 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:36:39,971 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:36:39,972 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:36:39,972 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:36:39,973 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:36:39,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:36:39,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:36:39,976 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:36:39,978 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:36:39,978 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:36:39,979 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:36:39,979 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:36:39,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:36:39,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:36:39,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:36:39,983 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:36:39,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:36:40,000 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:36:40,001 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:36:40,001 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:36:40,002 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:36:40,003 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:36:40,004 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:36:40,004 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:36:40,004 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:36:40,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:36:40,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:36:40,005 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:36:40,005 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:36:40,005 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:36:40,005 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:36:40,005 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:36:40,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:36:40,006 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:36:40,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:36:40,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:36:40,006 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:36:40,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:36:40,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:36:40,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:36:40,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:36:40,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:36:40,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:36:40,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:36:40,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:36:40,010 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 -> 963536477b49c0268678cb8326bb32feb993b05a 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 18:36:40,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:36:40,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:36:40,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:36:40,084 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:36:40,085 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:36:40,086 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970a_true-unreach-call.c [2018-09-21 18:36:40,426 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c17631c8/b6137c7517bc46d498659c549a59c89b/FLAGc14736b70 [2018-09-21 18:36:40,635 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:36:40,635 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970a_true-unreach-call.c [2018-09-21 18:36:40,645 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c17631c8/b6137c7517bc46d498659c549a59c89b/FLAGc14736b70 [2018-09-21 18:36:40,663 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c17631c8/b6137c7517bc46d498659c549a59c89b [2018-09-21 18:36:40,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:36:40,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:36:40,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:40,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:36:40,680 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:36:40,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:40" (1/1) ... [2018-09-21 18:36:40,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294241e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:40, skipping insertion in model container [2018-09-21 18:36:40,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:40" (1/1) ... [2018-09-21 18:36:40,697 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:36:40,986 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:41,009 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:36:41,065 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:41,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41 WrapperNode [2018-09-21 18:36:41,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:41,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:36:41,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:36:41,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:36:41,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (1/1) ... [2018-09-21 18:36:41,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:36:41,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:36:41,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:36:41,204 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:36:41,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (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 18:36:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:36:41,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:36:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:36:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-09-21 18:36:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:36:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-09-21 18:36:41,341 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:36:41,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:36:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:36:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:36:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:36:41,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:36:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:36:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:36:41,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:36:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:36:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-09-21 18:36:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:36:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-09-21 18:36:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:36:41,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:36:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:36:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:36:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:36:42,350 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:36:42,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:42 BoogieIcfgContainer [2018-09-21 18:36:42,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:36:42,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:36:42,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:36:42,355 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:36:42,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:36:40" (1/3) ... [2018-09-21 18:36:42,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4156ad79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:42, skipping insertion in model container [2018-09-21 18:36:42,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:41" (2/3) ... [2018-09-21 18:36:42,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4156ad79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:36:42, skipping insertion in model container [2018-09-21 18:36:42,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:42" (3/3) ... [2018-09-21 18:36:42,359 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a_true-unreach-call.c [2018-09-21 18:36:42,369 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:36:42,378 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:36:42,418 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:36:42,419 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:36:42,419 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:36:42,419 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:36:42,419 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:36:42,420 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:36:42,420 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:36:42,420 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:36:42,420 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:36:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2018-09-21 18:36:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:36:42,456 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:42,457 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] [2018-09-21 18:36:42,459 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:42,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1381458026, now seen corresponding path program 1 times [2018-09-21 18:36:42,465 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:36:42,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:36:42,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:42,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:42,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:36:42,673 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 18:36:42,676 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:36:42,677 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:36:42,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:36:42,699 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:36:42,700 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:36:42,704 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2018-09-21 18:36:42,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:36:42,779 INFO L93 Difference]: Finished difference Result 128 states and 144 transitions. [2018-09-21 18:36:42,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:36:42,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-09-21 18:36:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:36:42,794 INFO L225 Difference]: With dead ends: 128 [2018-09-21 18:36:42,794 INFO L226 Difference]: Without dead ends: 122 [2018-09-21 18:36:42,795 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:36:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-09-21 18:36:42,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-09-21 18:36:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-09-21 18:36:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 136 transitions. [2018-09-21 18:36:42,845 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 136 transitions. Word has length 23 [2018-09-21 18:36:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:36:42,846 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 136 transitions. [2018-09-21 18:36:42,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:36:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 136 transitions. [2018-09-21 18:36:42,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:36:42,849 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:36:42,849 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] [2018-09-21 18:36:42,849 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:36:42,850 INFO L82 PathProgramCache]: Analyzing trace with hash -399493746, now seen corresponding path program 1 times [2018-09-21 18:36:42,850 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:36:42,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:36:42,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:42,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:36:42,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:36:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:36:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:36:43,086 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:36:43,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:36:43 BoogieIcfgContainer [2018-09-21 18:36:43,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:36:43,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:36:43,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:36:43,182 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:36:43,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:36:42" (3/4) ... [2018-09-21 18:36:43,186 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:36:43,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:36:43,187 INFO L168 Benchmark]: Toolchain (without parser) took 2519.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -107.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:43,188 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 18:36:43,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.08 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:43,190 INFO L168 Benchmark]: Boogie Preprocessor took 89.16 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:36:43,190 INFO L168 Benchmark]: RCFGBuilder took 1150.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:43,191 INFO L168 Benchmark]: TraceAbstraction took 829.37 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:36:43,192 INFO L168 Benchmark]: Witness Printer took 4.68 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 18:36:43,196 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 438.08 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.16 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1150.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 829.37 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: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.68 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: 174]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 145, overapproximation of bitwiseAnd at line 116, overapproximation of someBinaryArithmeticFLOAToperation at line 117. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=6442450947, \old(Lg1_log)=6442450963, \old(Lg2_log)=6442450967, \old(Lg3_log)=6442450946, \old(Lg4_log)=6442450950, \old(Lg5_log)=6442450952, \old(Lg6_log)=6442450962, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450949, \old(ln2_lo_log)=6442450953, \old(log10_2hi_log10)=6442450956, \old(log10_2lo_log10)=6442450960, \old(two25_log)=6442450957, \old(two25_log10)=6442450959, \old(zero)=6442450964, \old(zero_log)=6442450955, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L166] float x = __VERIFIER_nondet_float(); [L168] x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, x < 0 && isfinite_float(x)=1, zero=0, zero_log=0] [L168] COND TRUE x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, x < 0 && isfinite_float(x)=1, zero=0, zero_log=0] [L168] CALL, EXPR isfinite_float(x) VAL [\old(x)=6442450951, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L149] __int32_t ix; VAL [\old(x)=6442450951, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L151] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450968:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L152] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450968:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L153] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450968:0}, gf_u.word=3, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L153] (ix) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450968:0}, gf_u.word=3, ivln10_log10=43429449201/100000000000, ix=3, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L153] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450966, \old(x)=6442450951, gf_u={6442450968:0}, gf_u.word=3, ivln10_log10=43429449201/100000000000, ix=3, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L154] COND FALSE !(0) VAL [\old(x)=6442450951, ivln10_log10=43429449201/100000000000, ix=3, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L155] ix &= 0x7fffffff [L156] RET return (((ix) < 0x7f800000L)); VAL [\old(x)=6442450951, \result=1, ivln10_log10=43429449201/100000000000, ix=2139095039, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L168] EXPR isfinite_float(x) VAL [isfinite_float(x)=1, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, x < 0 && isfinite_float(x)=1, zero=0, zero_log=0] [L168] x < 0 && isfinite_float(x) VAL [isfinite_float(x)=1, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, x < 0 && isfinite_float(x)=1, zero=0, zero_log=0] [L168] COND TRUE x < 0 && isfinite_float(x) [L170] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=6442450951, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [\old(x)=6442450951, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L110] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450965:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L111] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450965:0}, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L112] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450965:0}, gf_u.word=6442450944, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L112] (hx) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450965:0}, gf_u.word=6442450944, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L112] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450961, \old(x)=6442450951, gf_u={6442450965:0}, gf_u.word=6442450944, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L113] COND FALSE !(0) VAL [\old(x)=6442450951, hx=-2147483648, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L115] k = 0 VAL [\old(x)=6442450951, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] RET return -two25_log10 / zero; VAL [\old(x)=6442450951, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L170] EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=6442450945, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L170] float res = __ieee754_log10f(x); [L173] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450945, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] RET return x != x; VAL [\old(x)=6442450945, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450945, zero=0, zero_log=0] [L173] EXPR isnan_float(res) VAL [isnan_float(res)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450945, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L173] COND TRUE !isnan_float(res) [L174] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450945, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 127 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 142 SDtfs, 0 SDslu, 137 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 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 18:36:45,458 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:36:45,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:36:45,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:36:45,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:36:45,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:36:45,478 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:36:45,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:36:45,481 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:36:45,482 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:36:45,483 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:36:45,484 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:36:45,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:36:45,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:36:45,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:36:45,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:36:45,490 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:36:45,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:36:45,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:36:45,496 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:36:45,498 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:36:45,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:36:45,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:36:45,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:36:45,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:36:45,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:36:45,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:36:45,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:36:45,507 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:36:45,508 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:36:45,508 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:36:45,509 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:36:45,510 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:36:45,510 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:36:45,512 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:36:45,513 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:36:45,513 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:36:45,529 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:36:45,530 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:36:45,532 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:36:45,532 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:36:45,533 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:36:45,533 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:36:45,533 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:36:45,534 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:36:45,534 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:36:45,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:36:45,534 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:36:45,534 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:36:45,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:36:45,537 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:36:45,537 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:36:45,537 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:36:45,537 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:36:45,539 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:36:45,539 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:36:45,540 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:36:45,540 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:36:45,540 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:36:45,540 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:36:45,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:36:45,541 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:36:45,541 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:36:45,541 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:36:45,541 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:36:45,541 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:36:45,541 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:36:45,542 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:36:45,542 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 -> 963536477b49c0268678cb8326bb32feb993b05a 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 18:36:45,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:36:45,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:36:45,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:36:45,628 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:36:45,628 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:36:45,629 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970a_true-unreach-call.c [2018-09-21 18:36:45,974 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb2250f6/bbc66b8e5be8412799558d80bb760cf5/FLAGd2f4c4c96 [2018-09-21 18:36:46,198 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:36:46,200 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970a_true-unreach-call.c [2018-09-21 18:36:46,210 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb2250f6/bbc66b8e5be8412799558d80bb760cf5/FLAGd2f4c4c96 [2018-09-21 18:36:46,227 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb2250f6/bbc66b8e5be8412799558d80bb760cf5 [2018-09-21 18:36:46,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:36:46,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:36:46,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:46,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:36:46,244 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:36:46,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611690e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46, skipping insertion in model container [2018-09-21 18:36:46,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,262 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:36:46,603 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:46,634 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:36:46,717 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:36:46,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46 WrapperNode [2018-09-21 18:36:46,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:36:46,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:36:46,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:36:46,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:36:46,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (1/1) ... [2018-09-21 18:36:46,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:36:46,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:36:46,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:36:46,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:36:46,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (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 18:36:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:36:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:36:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:36:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-09-21 18:36:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:36:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-09-21 18:36:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:36:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:36:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:36:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:36:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-09-21 18:36:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:36:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-09-21 18:36:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:36:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:36:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:36:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:36:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:36:47,340 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:47,385 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:58,267 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:58,294 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:59,012 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:59,035 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:59,123 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:59,135 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:59,828 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:36:59,835 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:02,092 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:02,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:02 BoogieIcfgContainer [2018-09-21 18:37:02,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:02,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:02,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:02,097 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:02,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:36:46" (1/3) ... [2018-09-21 18:37:02,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aeb7adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:02, skipping insertion in model container [2018-09-21 18:37:02,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:36:46" (2/3) ... [2018-09-21 18:37:02,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aeb7adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:02, skipping insertion in model container [2018-09-21 18:37:02,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:02" (3/3) ... [2018-09-21 18:37:02,102 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a_true-unreach-call.c [2018-09-21 18:37:02,113 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:02,122 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:02,164 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:02,165 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:02,165 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:02,165 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:02,166 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:02,166 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:02,166 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:02,166 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:02,166 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:02,183 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2018-09-21 18:37:02,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:37:02,196 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:02,198 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 18:37:02,201 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:02,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1304830059, now seen corresponding path program 1 times [2018-09-21 18:37:02,212 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:02,213 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 18:37:02,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:02,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:02,548 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 18:37:02,548 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:02,574 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:02,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:37:02,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:37:02,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:37:02,597 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:02,600 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2018-09-21 18:37:02,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:02,630 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2018-09-21 18:37:02,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:37:02,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:37:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:02,658 INFO L225 Difference]: With dead ends: 126 [2018-09-21 18:37:02,658 INFO L226 Difference]: Without dead ends: 121 [2018-09-21 18:37:02,661 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 18:37:02,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-09-21 18:37:02,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-09-21 18:37:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-21 18:37:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2018-09-21 18:37:02,712 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 22 [2018-09-21 18:37:02,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:02,713 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2018-09-21 18:37:02,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:37:02,713 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2018-09-21 18:37:02,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:37:02,716 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:02,716 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] [2018-09-21 18:37:02,716 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:02,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1297324929, now seen corresponding path program 1 times [2018-09-21 18:37:02,718 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:02,718 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) [2018-09-21 18:37:02,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:03,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:03,043 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 18:37:03,043 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:03,058 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:03,058 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:37:03,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:37:03,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:37:03,061 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:37:03,061 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand 3 states. [2018-09-21 18:37:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:03,104 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2018-09-21 18:37:03,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:37:03,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-09-21 18:37:03,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:03,108 INFO L225 Difference]: With dead ends: 122 [2018-09-21 18:37:03,109 INFO L226 Difference]: Without dead ends: 121 [2018-09-21 18:37:03,110 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:37:03,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-09-21 18:37:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-09-21 18:37:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-21 18:37:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 135 transitions. [2018-09-21 18:37:03,124 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 135 transitions. Word has length 31 [2018-09-21 18:37:03,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:03,124 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 135 transitions. [2018-09-21 18:37:03,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:37:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 135 transitions. [2018-09-21 18:37:03,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:37:03,127 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:03,127 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] [2018-09-21 18:37:03,128 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:03,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1290492092, now seen corresponding path program 1 times [2018-09-21 18:37:03,129 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:03,130 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 18:37:03,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:03,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:03,678 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:37:03,763 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 11 treesize of output 8 [2018-09-21 18:37:03,767 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 8 treesize of output 7 [2018-09-21 18:37:03,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:03,774 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:03,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:03,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:03,839 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 29 treesize of output 21 [2018-09-21 18:37:03,857 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 21 treesize of output 9 [2018-09-21 18:37:03,858 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:03,869 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:03,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:03,875 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:04,275 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 18:37:04,276 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:04,293 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:04,293 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:37:04,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:37:04,294 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:37:04,294 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:37:04,295 INFO L87 Difference]: Start difference. First operand 121 states and 135 transitions. Second operand 9 states. [2018-09-21 18:37:04,680 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-09-21 18:37:07,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:07,403 INFO L93 Difference]: Finished difference Result 131 states and 144 transitions. [2018-09-21 18:37:07,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:37:07,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-09-21 18:37:07,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:07,408 INFO L225 Difference]: With dead ends: 131 [2018-09-21 18:37:07,408 INFO L226 Difference]: Without dead ends: 129 [2018-09-21 18:37:07,409 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:37:07,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-09-21 18:37:07,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 121. [2018-09-21 18:37:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-21 18:37:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 134 transitions. [2018-09-21 18:37:07,422 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 134 transitions. Word has length 47 [2018-09-21 18:37:07,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:07,423 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 134 transitions. [2018-09-21 18:37:07,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:37:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 134 transitions. [2018-09-21 18:37:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:37:07,425 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:07,425 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] [2018-09-21 18:37:07,425 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:07,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1127257726, now seen corresponding path program 1 times [2018-09-21 18:37:07,427 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:07,427 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 18:37:07,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:07,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:08,749 WARN L178 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:37:09,341 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 18:37:09,342 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:09,359 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:09,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:37:09,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:37:09,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:37:09,360 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:37:09,360 INFO L87 Difference]: Start difference. First operand 121 states and 134 transitions. Second operand 8 states. [2018-09-21 18:37:10,928 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:37:11,265 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:37:11,817 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:37:14,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:14,064 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2018-09-21 18:37:14,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-21 18:37:14,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-09-21 18:37:14,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:14,067 INFO L225 Difference]: With dead ends: 126 [2018-09-21 18:37:14,068 INFO L226 Difference]: Without dead ends: 121 [2018-09-21 18:37:14,068 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:37:14,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-09-21 18:37:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-09-21 18:37:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-09-21 18:37:14,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 133 transitions. [2018-09-21 18:37:14,083 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 133 transitions. Word has length 48 [2018-09-21 18:37:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:14,084 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 133 transitions. [2018-09-21 18:37:14,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:37:14,084 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 133 transitions. [2018-09-21 18:37:14,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:37:14,087 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:14,087 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] [2018-09-21 18:37:14,087 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:14,088 INFO L82 PathProgramCache]: Analyzing trace with hash -424094344, now seen corresponding path program 1 times [2018-09-21 18:37:14,089 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:14,089 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 18:37:14,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:14,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:14,297 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 11 treesize of output 8 [2018-09-21 18:37:14,302 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 8 treesize of output 7 [2018-09-21 18:37:14,303 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:14,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:14,323 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:14,324 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:14,352 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 29 treesize of output 21 [2018-09-21 18:37:14,357 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 21 treesize of output 9 [2018-09-21 18:37:14,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:14,385 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:14,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:14,389 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:14,526 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 18:37:14,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:14,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:14,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:37:14,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:37:14,539 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:37:14,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:37:14,539 INFO L87 Difference]: Start difference. First operand 121 states and 133 transitions. Second operand 9 states. [2018-09-21 18:37:15,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:15,976 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2018-09-21 18:37:15,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:37:15,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 18:37:15,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:15,983 INFO L225 Difference]: With dead ends: 121 [2018-09-21 18:37:15,984 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:37:15,984 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:37:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:37:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:37:15,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:37:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:37:15,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-21 18:37:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:15,987 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:37:15,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:37:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:37:15,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:37:15,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:37:15 BoogieIcfgContainer [2018-09-21 18:37:15,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:37:15,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:37:15,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:37:15,995 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:37:15,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:02" (3/4) ... [2018-09-21 18:37:15,999 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:37:16,006 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:37:16,006 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:37:16,006 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-21 18:37:16,006 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isfinite_float [2018-09-21 18:37:16,006 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-09-21 18:37:16,007 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:37:16,016 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-09-21 18:37:16,017 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-09-21 18:37:16,018 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:37:16,018 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:37:16,108 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:37:16,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:37:16,109 INFO L168 Benchmark]: Toolchain (without parser) took 29876.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.2 MB in the beginning and 844.5 MB in the end (delta: 108.7 MB). Peak memory consumption was 240.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:16,110 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:16,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.74 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:16,111 INFO L168 Benchmark]: Boogie Preprocessor took 85.45 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:16,113 INFO L168 Benchmark]: RCFGBuilder took 15219.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:16,113 INFO L168 Benchmark]: TraceAbstraction took 13900.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.4 MB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:16,114 INFO L168 Benchmark]: Witness Printer took 114.34 ms. Allocated memory is still 1.2 GB. Free memory was 851.4 MB in the beginning and 844.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:16,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 549.74 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.45 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 15219.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 931.7 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13900.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.4 MB in the end (delta: 224.5 MB). Peak memory consumption was 224.5 MB. Max. memory is 11.5 GB. * Witness Printer took 114.34 ms. Allocated memory is still 1.2 GB. Free memory was 851.4 MB in the beginning and 844.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 174]: 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 7 procedures, 126 locations, 1 error locations. SAFE Result, 13.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 9.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 642 SDtfs, 197 SDslu, 2251 SDs, 0 SdLazy, 271 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 192 ConstructedInterpolants, 9 QuantifiedInterpolants, 34340 SizeOfPredicates, 20 NumberOfNonLiveVariables, 635 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...