./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer --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 fb906b6dd506785279c111a847f91453236e370a ............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer --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 fb906b6dd506785279c111a847f91453236e370a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 08:34:44,911 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:44,912 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:44,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:44,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:44,920 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:44,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:44,921 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:44,923 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:44,923 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:44,924 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:44,924 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:44,925 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:44,925 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:44,926 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:44,927 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:44,927 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:44,929 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:44,930 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:44,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:44,932 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:44,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:44,934 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:44,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:44,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:44,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:44,936 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:44,936 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:44,937 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:44,938 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:44,938 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:44,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:44,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:44,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:44,939 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:44,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:44,940 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 08:34:44,949 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:44,949 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:44,950 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:34:44,950 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 08:34:44,950 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:44,950 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:44,951 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:34:44,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:34:44,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:34:44,952 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:34:44,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:34:44,953 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:44,953 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:34:44,953 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:34:44,953 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:44,953 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:34:44,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:34:44,953 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer 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 -> fb906b6dd506785279c111a847f91453236e370a [2018-11-18 08:34:44,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:44,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:44,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:44,985 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:44,985 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:44,985 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 08:34:45,023 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/8cb931f74/36490f12cd1945fb85df7ab7bec047e7/FLAGd71b33dfa [2018-11-18 08:34:45,416 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:45,417 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 08:34:45,421 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/8cb931f74/36490f12cd1945fb85df7ab7bec047e7/FLAGd71b33dfa [2018-11-18 08:34:45,430 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/8cb931f74/36490f12cd1945fb85df7ab7bec047e7 [2018-11-18 08:34:45,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:45,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:34:45,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:45,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:45,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:45,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e791d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45, skipping insertion in model container [2018-11-18 08:34:45,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:45,459 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:45,576 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:45,578 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:45,596 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:45,610 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:45,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45 WrapperNode [2018-11-18 08:34:45,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:45,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:45,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:45,611 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:45,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... [2018-11-18 08:34:45,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:45,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:45,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:45,676 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:45,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/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 [2018-11-18 08:34:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:34:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 08:34:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 08:34:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:34:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:34:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 08:34:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:34:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:45,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 08:34:45,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 08:34:45,959 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:45,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:45 BoogieIcfgContainer [2018-11-18 08:34:45,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:45,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:34:45,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:34:45,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:34:45,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:34:45" (1/3) ... [2018-11-18 08:34:45,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed52655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:45, skipping insertion in model container [2018-11-18 08:34:45,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:45" (2/3) ... [2018-11-18 08:34:45,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed52655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:45, skipping insertion in model container [2018-11-18 08:34:45,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:45" (3/3) ... [2018-11-18 08:34:45,964 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-11-18 08:34:45,970 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:34:45,974 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:34:45,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:34:46,013 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:46,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:34:46,014 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:34:46,014 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:34:46,014 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:46,014 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:46,014 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:34:46,014 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:46,015 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:34:46,028 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 08:34:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 08:34:46,031 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:46,032 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:46,033 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:46,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:46,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1215163862, now seen corresponding path program 1 times [2018-11-18 08:34:46,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:46,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:46,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:46,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:46,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:46,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:46,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:34:46,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 08:34:46,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 08:34:46,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:34:46,129 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 08:34:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:46,146 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 08:34:46,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:34:46,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 08:34:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:46,155 INFO L225 Difference]: With dead ends: 78 [2018-11-18 08:34:46,155 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 08:34:46,158 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:34:46,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 08:34:46,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 08:34:46,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 08:34:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 08:34:46,181 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 08:34:46,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:46,181 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 08:34:46,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 08:34:46,181 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 08:34:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 08:34:46,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:46,182 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:46,182 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:46,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:46,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1190867942, now seen corresponding path program 1 times [2018-11-18 08:34:46,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:46,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:46,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:46,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:46,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:46,249 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 08:34:46,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:34:46 BoogieIcfgContainer [2018-11-18 08:34:46,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:34:46,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:46,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:46,267 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:46,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:45" (3/4) ... [2018-11-18 08:34:46,269 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:34:46,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:46,270 INFO L168 Benchmark]: Toolchain (without parser) took 838.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:46,271 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:46,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.68 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:46,272 INFO L168 Benchmark]: Boogie Preprocessor took 64.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -232.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:46,272 INFO L168 Benchmark]: RCFGBuilder took 283.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:46,273 INFO L168 Benchmark]: TraceAbstraction took 306.36 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:46,273 INFO L168 Benchmark]: Witness Printer took 3.01 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. [2018-11-18 08:34:46,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.68 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -232.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 283.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 306.36 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: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 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: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 76, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450949] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=-2147483648, j0=2147483646, x=6442450949] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=-2147483648, j0=2147483646, x=6442450949] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [\old(x)=6442450949, \result=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=-2147483648, j0=2147483646, x=6442450949] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000, res=6442450949, res == -0.0f && __signbit_float(res) == 1=0, x=6442450949] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 0.1.23-5842f4b [2018-11-18 08:34:47,772 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:47,773 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:47,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:47,782 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:47,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:47,783 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:47,784 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:47,786 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:47,786 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:47,787 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:47,787 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:47,788 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:47,789 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:47,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:47,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:47,790 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:47,792 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:47,793 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:47,794 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:47,795 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:47,796 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:47,797 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:47,798 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:47,798 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:47,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:47,799 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:47,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:47,800 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:47,801 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:47,801 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:47,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:47,802 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:47,802 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:47,802 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:47,803 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:47,803 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 08:34:47,814 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:47,814 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:47,814 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:34:47,814 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:34:47,815 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:47,815 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:47,815 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:47,815 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:47,815 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:47,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:47,817 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:47,817 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:34:47,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:47,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:47,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:34:47,817 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:34:47,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:34:47,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:47,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:34:47,818 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:34:47,818 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 08:34:47,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:34:47,818 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 08:34:47,818 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 08:34:47,818 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer 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 -> fb906b6dd506785279c111a847f91453236e370a [2018-11-18 08:34:47,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:47,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:47,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:47,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:47,859 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:47,859 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 08:34:47,896 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/668ff7faf/9bd60c2a858847d0b88d2f939d68477a/FLAG2626b61bd [2018-11-18 08:34:48,228 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:48,228 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 08:34:48,233 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/668ff7faf/9bd60c2a858847d0b88d2f939d68477a/FLAG2626b61bd [2018-11-18 08:34:48,657 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/data/668ff7faf/9bd60c2a858847d0b88d2f939d68477a [2018-11-18 08:34:48,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:48,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:34:48,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:48,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:48,663 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:48,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb5b9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48, skipping insertion in model container [2018-11-18 08:34:48,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:48,686 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:48,816 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:48,820 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:48,840 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:48,858 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:48,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48 WrapperNode [2018-11-18 08:34:48,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:48,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:48,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:48,860 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:48,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... [2018-11-18 08:34:48,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:48,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:48,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:48,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:48,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/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 [2018-11-18 08:34:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:34:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 08:34:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 08:34:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:34:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:34:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 08:34:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 08:34:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 08:34:49,334 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:34:49,525 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:49,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:49 BoogieIcfgContainer [2018-11-18 08:34:49,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:49,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:34:49,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:34:49,528 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:34:49,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:34:48" (1/3) ... [2018-11-18 08:34:49,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534959e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:49, skipping insertion in model container [2018-11-18 08:34:49,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:48" (2/3) ... [2018-11-18 08:34:49,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@534959e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:49, skipping insertion in model container [2018-11-18 08:34:49,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:49" (3/3) ... [2018-11-18 08:34:49,531 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-11-18 08:34:49,537 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:34:49,542 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:34:49,551 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:34:49,570 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:49,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:34:49,571 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:34:49,571 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:34:49,571 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:49,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:49,571 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:34:49,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:49,571 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:34:49,583 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 08:34:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 08:34:49,587 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:49,588 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:49,590 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:49,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:49,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1215163862, now seen corresponding path program 1 times [2018-11-18 08:34:49,597 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:49,597 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/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 [2018-11-18 08:34:49,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:49,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:49,650 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:49,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:49,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:34:49,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 08:34:49,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 08:34:49,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:34:49,673 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 08:34:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:49,693 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 08:34:49,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:34:49,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 08:34:49,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:49,700 INFO L225 Difference]: With dead ends: 78 [2018-11-18 08:34:49,700 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 08:34:49,703 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:34:49,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 08:34:49,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 08:34:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 08:34:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 08:34:49,731 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 08:34:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:49,731 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 08:34:49,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 08:34:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 08:34:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 08:34:49,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:49,733 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:49,733 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:49,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:49,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1190867942, now seen corresponding path program 1 times [2018-11-18 08:34:49,734 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:49,734 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 08:34:49,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:49,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:49,914 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:49,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:49,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 08:34:49,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:34:49,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:34:49,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:34:49,926 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-11-18 08:34:50,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:50,709 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-18 08:34:50,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 08:34:50,709 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 08:34:50,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:50,711 INFO L225 Difference]: With dead ends: 60 [2018-11-18 08:34:50,711 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 08:34:50,712 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:34:50,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 08:34:50,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-18 08:34:50,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 08:34:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 08:34:50,718 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-11-18 08:34:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:50,718 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 08:34:50,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:34:50,718 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 08:34:50,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 08:34:50,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:50,719 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:50,719 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:50,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:50,720 INFO L82 PathProgramCache]: Analyzing trace with hash 736224334, now seen corresponding path program 1 times [2018-11-18 08:34:50,720 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:50,720 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/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 [2018-11-18 08:34:50,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:50,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:50,846 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:50,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:50,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 08:34:50,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:34:50,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:34:50,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:34:50,854 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-18 08:34:51,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:51,577 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-11-18 08:34:51,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 08:34:51,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 08:34:51,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:51,578 INFO L225 Difference]: With dead ends: 67 [2018-11-18 08:34:51,578 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 08:34:51,579 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:34:51,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 08:34:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 08:34:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 08:34:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 08:34:51,582 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-18 08:34:51,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:51,582 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 08:34:51,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:34:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 08:34:51,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 08:34:51,583 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:51,583 INFO L375 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] [2018-11-18 08:34:51,583 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:51,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:51,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1227335940, now seen corresponding path program 1 times [2018-11-18 08:34:51,584 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:51,584 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/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 [2018-11-18 08:34:51,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:51,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:52,415 WARN L180 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 08:34:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:52,420 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:52,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:52,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 08:34:52,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:34:52,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:34:52,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:34:52,432 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-18 08:34:53,451 WARN L180 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 08:34:53,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:53,878 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 08:34:53,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 08:34:53,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 08:34:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:53,882 INFO L225 Difference]: With dead ends: 52 [2018-11-18 08:34:53,882 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 08:34:53,882 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:34:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 08:34:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 08:34:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 08:34:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 08:34:53,885 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-18 08:34:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:53,886 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 08:34:53,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:34:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 08:34:53,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 08:34:53,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:53,887 INFO L375 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] [2018-11-18 08:34:53,887 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:53,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:53,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1194856315, now seen corresponding path program 1 times [2018-11-18 08:34:53,887 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:53,887 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/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 [2018-11-18 08:34:53,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:53,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:53,968 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:53,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:53,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 08:34:53,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:34:53,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:34:53,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:34:53,976 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-11-18 08:34:54,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:54,091 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 08:34:54,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 08:34:54,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 08:34:54,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:54,092 INFO L225 Difference]: With dead ends: 44 [2018-11-18 08:34:54,092 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 08:34:54,092 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:34:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 08:34:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 08:34:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 08:34:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 08:34:54,097 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-11-18 08:34:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:54,097 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 08:34:54,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:34:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 08:34:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 08:34:54,099 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:54,099 INFO L375 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] [2018-11-18 08:34:54,099 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:54,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:54,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1101338054, now seen corresponding path program 1 times [2018-11-18 08:34:54,099 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:54,100 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 08:34:54,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:54,146 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:54,212 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:54,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:54,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 08:34:54,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:34:54,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:34:54,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:34:54,221 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-11-18 08:34:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:54,525 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-18 08:34:54,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:34:54,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 08:34:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:54,526 INFO L225 Difference]: With dead ends: 57 [2018-11-18 08:34:54,526 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 08:34:54,527 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:34:54,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 08:34:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 08:34:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 08:34:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-18 08:34:54,530 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-11-18 08:34:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:54,530 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-18 08:34:54,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:34:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-18 08:34:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 08:34:54,531 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:54,531 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:54,531 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:54,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:54,531 INFO L82 PathProgramCache]: Analyzing trace with hash -908935846, now seen corresponding path program 1 times [2018-11-18 08:34:54,531 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:54,532 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 08:34:54,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:54,588 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:34:54,711 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:54,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:54,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 08:34:54,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 08:34:54,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 08:34:54,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 08:34:54,720 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-11-18 08:34:54,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:54,993 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-18 08:34:54,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 08:34:54,993 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-18 08:34:54,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:54,994 INFO L225 Difference]: With dead ends: 33 [2018-11-18 08:34:54,994 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 08:34:54,994 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-18 08:34:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 08:34:54,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 08:34:54,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 08:34:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 08:34:54,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-18 08:34:54,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:54,995 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:54,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 08:34:54,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:34:54,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 08:34:54,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 08:34:55,136 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) [2018-11-18 08:34:55,137 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-11-18 08:34:55,137 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L421 ceAbstractionStarter]: At program point L80-1(line 80) the Hoare annotation is: (or (and |main_#t~short8| (= main_~x~0 (fp.neg (_ +zero 8 24))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) main_~res~0)) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L80-2(line 80) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (or (= main_~x~0 (fp.neg (_ +zero 8 24))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L80-4(lines 80 83) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 08:34:55,138 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (= |ceil_float_#in~x| ceil_float_~x) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-18 08:34:55,139 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-11-18 08:34:55,140 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-11-18 08:34:55,145 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,145 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,147 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,147 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,148 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,148 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,149 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,149 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:34:55 BoogieIcfgContainer [2018-11-18 08:34:55,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:34:55,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:55,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:55,151 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:55,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:49" (3/4) ... [2018-11-18 08:34:55,154 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 08:34:55,157 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 08:34:55,158 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 08:34:55,158 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-18 08:34:55,158 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 08:34:55,161 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 08:34:55,161 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 08:34:55,162 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 08:34:55,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) [2018-11-18 08:34:55,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) || \old(x) == x [2018-11-18 08:34:55,197 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7ae94b5a-f834-49c9-8e67-cd2467b5e720/bin-2019/uautomizer/witness.graphml [2018-11-18 08:34:55,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:55,198 INFO L168 Benchmark]: Toolchain (without parser) took 6537.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 949.7 MB in the beginning and 831.2 MB in the end (delta: 118.5 MB). Peak memory consumption was 251.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:55,199 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-18 08:34:55,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.49 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:55,199 INFO L168 Benchmark]: Boogie Preprocessor took 35.22 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:55,199 INFO L168 Benchmark]: RCFGBuilder took 630.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:55,200 INFO L168 Benchmark]: TraceAbstraction took 5624.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 837.9 MB in the end (delta: 258.7 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:55,200 INFO L168 Benchmark]: Witness Printer took 46.15 ms. Allocated memory is still 1.2 GB. Free memory was 837.9 MB in the beginning and 831.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:55,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 198.49 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.22 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 630.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5624.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 837.9 MB in the end (delta: 258.7 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. * Witness Printer took 46.15 ms. Allocated memory is still 1.2 GB. Free memory was 837.9 MB in the beginning and 831.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant [2018-11-18 08:34:55,205 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,205 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,205 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,206 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) || \old(x) == x - InvariantResult [Line: 16]: Loop Invariant [2018-11-18 08:34:55,206 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,206 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,206 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 08:34:55,206 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 70 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 20017 SizeOfPredicates, 25 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...