./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i --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_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ............................................................................................................................................................................................................................................... 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_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ............................................................................................................................................................................................................................................................................................................................................................................................... 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 08:34:29,079 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:29,080 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:29,087 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:29,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:29,088 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:29,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:29,090 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:29,091 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:29,092 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:29,093 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:29,093 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:29,094 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:29,094 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:29,095 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:29,096 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:29,096 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:29,098 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:29,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:29,100 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:29,101 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:29,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:29,104 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:29,104 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:29,104 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:29,105 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:29,106 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:29,106 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:29,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:29,108 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:29,108 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:29,109 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:29,109 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:29,109 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:29,110 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:29,110 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:29,110 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 08:34:29,120 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:29,120 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:29,121 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:34:29,121 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 08:34:29,122 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:29,122 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:29,122 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:29,122 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:29,122 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:29,122 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:34:29,123 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:29,123 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:29,123 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:34:29,123 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:34:29,123 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:34:29,123 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:29,124 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:29,124 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:29,124 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:34:29,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:29,124 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:29,124 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:34:29,124 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:34:29,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:34:29,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:29,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:34:29,125 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:34:29,125 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:34:29,125 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:34:29,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:34:29,126 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_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-11-18 08:34:29,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:29,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:29,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:29,164 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:29,164 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:29,165 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-18 08:34:29,210 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/54b54d820/63a022bc5e02422392357d90d78ced4d/FLAGa52989d0a [2018-11-18 08:34:29,617 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:29,618 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-18 08:34:29,623 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/54b54d820/63a022bc5e02422392357d90d78ced4d/FLAGa52989d0a [2018-11-18 08:34:29,638 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/54b54d820/63a022bc5e02422392357d90d78ced4d [2018-11-18 08:34:29,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:29,642 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:34:29,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:29,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:29,646 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:29,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7842460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29, skipping insertion in model container [2018-11-18 08:34:29,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:29,675 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:29,797 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:29,799 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:29,815 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:29,823 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:29,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29 WrapperNode [2018-11-18 08:34:29,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:29,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:29,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:29,824 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:29,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... [2018-11-18 08:34:29,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:29,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:29,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:29,841 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:29,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 08:34:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:34:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-11-18 08:34:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-11-18 08:34:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-11-18 08:34:29,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:34:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:34:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:30,021 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:30,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:30 BoogieIcfgContainer [2018-11-18 08:34:30,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:30,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:34:30,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:34:30,025 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:34:30,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:34:29" (1/3) ... [2018-11-18 08:34:30,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b93ef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:30, skipping insertion in model container [2018-11-18 08:34:30,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:29" (2/3) ... [2018-11-18 08:34:30,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b93ef3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:30, skipping insertion in model container [2018-11-18 08:34:30,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:30" (3/3) ... [2018-11-18 08:34:30,028 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-11-18 08:34:30,033 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:34:30,037 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 08:34:30,045 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 08:34:30,067 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:30,068 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:34:30,068 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:34:30,068 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:34:30,068 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:30,068 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:30,068 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:34:30,068 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:30,068 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:34:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-18 08:34:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 08:34:30,088 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:30,089 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:30,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:30,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:30,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-11-18 08:34:30,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:34:30,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:34:30,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:30,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:30,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:34:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:34:30,168 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 08:34:30,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:34:30 BoogieIcfgContainer [2018-11-18 08:34:30,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:34:30,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:30,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:30,182 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:30,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:30" (3/4) ... [2018-11-18 08:34:30,185 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:34:30,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:30,186 INFO L168 Benchmark]: Toolchain (without parser) took 544.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:30,187 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:30,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.47 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 946.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:30,188 INFO L168 Benchmark]: Boogie Preprocessor took 16.62 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:30,188 INFO L168 Benchmark]: RCFGBuilder took 180.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:30,189 INFO L168 Benchmark]: TraceAbstraction took 159.22 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:30,189 INFO L168 Benchmark]: Witness Printer took 3.24 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 08:34:30,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.47 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 946.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.62 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 180.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159.22 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L38] CALL bug(f) VAL [\old(min)=0] [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; VAL [\old(min)=0, min=0] [L10] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=0, min=0] [L10] __VERIFIER_error() VAL [\old(min)=0, min=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 08:34:31,688 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:34:31,690 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:34:31,699 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:34:31,699 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:34:31,700 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:34:31,701 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:34:31,702 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:34:31,704 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:34:31,704 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:34:31,705 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:34:31,705 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:34:31,706 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:34:31,706 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:34:31,707 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:34:31,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:34:31,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:34:31,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:34:31,711 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:34:31,712 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:34:31,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:34:31,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:34:31,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:34:31,716 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:34:31,716 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:34:31,717 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:34:31,717 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:34:31,718 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:34:31,718 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:34:31,719 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:34:31,719 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:34:31,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:34:31,720 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:34:31,720 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:34:31,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:34:31,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:34:31,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 08:34:31,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:34:31,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:34:31,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:34:31,733 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:34:31,733 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:34:31,733 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:34:31,733 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:34:31,733 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 08:34:31,734 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 08:34:31,735 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:34:31,735 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:34:31,735 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:34:31,735 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:34:31,735 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:34:31,735 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:34:31,735 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:34:31,736 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:34:31,736 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 08:34:31,737 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 08:34:31,737 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_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-11-18 08:34:31,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:34:31,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:34:31,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:34:31,780 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:34:31,781 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:34:31,781 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-18 08:34:31,829 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/3f2cde630/cf946ef210084e0a8cb97b0c8a2470f8/FLAG198dfb7d7 [2018-11-18 08:34:32,159 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:34:32,160 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-18 08:34:32,164 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/3f2cde630/cf946ef210084e0a8cb97b0c8a2470f8/FLAG198dfb7d7 [2018-11-18 08:34:32,594 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/data/3f2cde630/cf946ef210084e0a8cb97b0c8a2470f8 [2018-11-18 08:34:32,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:34:32,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:34:32,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:32,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:34:32,601 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:34:32,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcafc49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32, skipping insertion in model container [2018-11-18 08:34:32,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:34:32,627 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:34:32,758 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:32,762 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:34:32,779 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:34:32,793 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:34:32,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32 WrapperNode [2018-11-18 08:34:32,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:34:32,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:34:32,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:34:32,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:34:32,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... [2018-11-18 08:34:32,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:34:32,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:34:32,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:34:32,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:34:32,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 08:34:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:34:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:34:32,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-11-18 08:34:32,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-11-18 08:34:32,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-11-18 08:34:32,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:34:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 08:34:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:34:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 08:34:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-18 08:34:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-11-18 08:34:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-11-18 08:34:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-11-18 08:34:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:34:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:34:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:34:33,623 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:34:33,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:33 BoogieIcfgContainer [2018-11-18 08:34:33,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:34:33,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:34:33,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:34:33,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:34:33,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:34:32" (1/3) ... [2018-11-18 08:34:33,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf20e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:33, skipping insertion in model container [2018-11-18 08:34:33,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:34:32" (2/3) ... [2018-11-18 08:34:33,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf20e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:34:33, skipping insertion in model container [2018-11-18 08:34:33,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:33" (3/3) ... [2018-11-18 08:34:33,631 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-11-18 08:34:33,639 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:34:33,645 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 08:34:33,654 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 08:34:33,674 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:34:33,674 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:34:33,675 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:34:33,675 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:34:33,675 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:34:33,675 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:34:33,675 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:34:33,675 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:34:33,675 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:34:33,688 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-18 08:34:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 08:34:33,693 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:33,693 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:33,695 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:33,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:33,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-11-18 08:34:33,701 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:33,702 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 08:34:33,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:33,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:33,991 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 08:34:33,991 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:34,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:34,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:34,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 08:34:34,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:34,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:34,019 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-18 08:34:34,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:34,050 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-11-18 08:34:34,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:34,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 08:34:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:34,062 INFO L225 Difference]: With dead ends: 56 [2018-11-18 08:34:34,062 INFO L226 Difference]: Without dead ends: 24 [2018-11-18 08:34:34,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-18 08:34:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-18 08:34:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 08:34:34,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-11-18 08:34:34,092 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 9 [2018-11-18 08:34:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:34,092 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-11-18 08:34:34,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 08:34:34,093 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-11-18 08:34:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 08:34:34,093 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:34,093 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:34:34,094 INFO L423 AbstractCegarLoop]: === Iteration 2 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:34,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:34,094 INFO L82 PathProgramCache]: Analyzing trace with hash -807154991, now seen corresponding path program 1 times [2018-11-18 08:34:34,095 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:34,095 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 08:34:34,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:34,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:37,525 WARN L180 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 19 [2018-11-18 08:34:38,231 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 08:34:38,231 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:38,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:38,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:38,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 08:34:38,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:38,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:38,242 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 3 states. [2018-11-18 08:34:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:39,301 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-18 08:34:39,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:39,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 08:34:39,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:39,325 INFO L225 Difference]: With dead ends: 24 [2018-11-18 08:34:39,325 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 08:34:39,326 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 08:34:39,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 08:34:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 08:34:39,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-11-18 08:34:39,330 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 15 [2018-11-18 08:34:39,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:39,330 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-11-18 08:34:39,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 08:34:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-11-18 08:34:39,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 08:34:39,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:34:39,331 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] [2018-11-18 08:34:39,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:34:39,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:34:39,332 INFO L82 PathProgramCache]: Analyzing trace with hash -241350324, now seen corresponding path program 1 times [2018-11-18 08:34:39,332 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:34:39,332 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/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 08:34:39,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:34:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:34:39,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:34:39,798 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 08:34:39,835 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 08:34:39,836 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:34:39,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:34:39,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 08:34:39,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 08:34:39,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 08:34:39,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:39,850 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-11-18 08:34:39,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:34:39,852 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-18 08:34:39,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 08:34:39,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-18 08:34:39,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:34:39,853 INFO L225 Difference]: With dead ends: 22 [2018-11-18 08:34:39,853 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 08:34:39,853 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 08:34:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 08:34:39,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 08:34:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 08:34:39,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 08:34:39,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-18 08:34:39,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:34:39,854 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:34:39,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 08:34:39,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:34:39,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 08:34:39,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 08:34:39,890 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 08:34:39,890 INFO L425 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-11-18 08:34:39,890 INFO L425 ceAbstractionStarter]: For program point bugCastingEXIT(lines 26 34) no Hoare annotation was computed. [2018-11-18 08:34:39,890 INFO L425 ceAbstractionStarter]: For program point L31-3(lines 26 34) no Hoare annotation was computed. [2018-11-18 08:34:39,890 INFO L428 ceAbstractionStarter]: At program point bugCastingENTRY(lines 26 34) the Hoare annotation is: true [2018-11-18 08:34:39,890 INFO L425 ceAbstractionStarter]: For program point bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-11-18 08:34:39,890 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 08:34:39,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L428 ceAbstractionStarter]: At program point bugENTRY(lines 5 13) the Hoare annotation is: true [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point bugEXIT(lines 5 13) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point bugErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point L10-3(lines 5 13) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 08:34:39,891 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 08:34:39,891 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:34:39,891 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 36 47) the Hoare annotation is: true [2018-11-18 08:34:39,892 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 36 47) no Hoare annotation was computed. [2018-11-18 08:34:39,892 INFO L428 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: true [2018-11-18 08:34:39,892 INFO L425 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-11-18 08:34:39,892 INFO L428 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2018-11-18 08:34:39,892 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 36 47) no Hoare annotation was computed. [2018-11-18 08:34:39,892 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-18 08:34:39,892 INFO L428 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: true [2018-11-18 08:34:39,892 INFO L425 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-11-18 08:34:39,892 INFO L425 ceAbstractionStarter]: For program point bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-11-18 08:34:39,893 INFO L425 ceAbstractionStarter]: For program point bugBrokenOutEXIT(lines 15 24) no Hoare annotation was computed. [2018-11-18 08:34:39,893 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 08:34:39,893 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-18 08:34:39,893 INFO L428 ceAbstractionStarter]: At program point bugBrokenOutENTRY(lines 15 24) the Hoare annotation is: true [2018-11-18 08:34:39,893 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 15 24) no Hoare annotation was computed. [2018-11-18 08:34:39,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:34:39 BoogieIcfgContainer [2018-11-18 08:34:39,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:34:39,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:34:39,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:34:39,896 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:34:39,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:34:33" (3/4) ... [2018-11-18 08:34:39,898 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 08:34:39,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bugCasting [2018-11-18 08:34:39,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 08:34:39,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bug [2018-11-18 08:34:39,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 08:34:39,903 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bugBrokenOut [2018-11-18 08:34:39,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 08:34:39,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 08:34:39,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 08:34:39,934 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4c1b3807-57d7-4c18-984f-2ff7b38cea2c/bin-2019/uautomizer/witness.graphml [2018-11-18 08:34:39,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:34:39,935 INFO L168 Benchmark]: Toolchain (without parser) took 7338.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -74.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:39,935 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:34:39,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.20 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 08:34:39,936 INFO L168 Benchmark]: Boogie Preprocessor took 24.41 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 08:34:39,936 INFO L168 Benchmark]: RCFGBuilder took 805.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:39,936 INFO L168 Benchmark]: TraceAbstraction took 6270.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:39,937 INFO L168 Benchmark]: Witness Printer took 38.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 08:34:39,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.20 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 24.41 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 805.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6270.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 error locations. SAFE Result, 6.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 4 SDslu, 63 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 14 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 3 QuantifiedInterpolants, 1426 SizeOfPredicates, 9 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...