./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e ....................................................................................................................................................................................................................................... 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_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e .............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 20:30:33,070 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:30:33,072 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:30:33,082 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:30:33,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:30:33,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:30:33,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:30:33,086 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:30:33,087 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:30:33,088 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:30:33,088 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:30:33,092 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:30:33,093 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:30:33,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:30:33,094 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:30:33,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:30:33,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:30:33,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:30:33,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:30:33,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:30:33,113 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:30:33,115 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:30:33,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:30:33,120 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:30:33,121 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:30:33,122 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:30:33,123 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:30:33,123 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:30:33,124 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:30:33,124 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:30:33,126 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:30:33,127 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:30:33,127 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:30:33,127 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:30:33,128 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:30:33,128 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:30:33,128 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 20:30:33,144 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:30:33,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:30:33,145 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:30:33,146 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:30:33,147 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:30:33,148 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:30:33,148 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 20:30:33,148 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:30:33,148 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:30:33,148 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:30:33,148 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:30:33,149 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:30:33,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:30:33,150 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:30:33,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:30:33,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:30:33,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:30:33,150 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:30:33,150 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:30:33,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:30:33,151 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 20:30:33,151 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:30:33,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:30:33,151 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_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-10-26 20:30:33,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:30:33,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:30:33,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:30:33,214 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:30:33,214 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:30:33,215 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-10-26 20:30:33,260 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/f41df1d2b/a0dbc23aa3bd42c3afc4e3642449e41c/FLAG956ca18fd [2018-10-26 20:30:33,647 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:30:33,647 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-10-26 20:30:33,653 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/f41df1d2b/a0dbc23aa3bd42c3afc4e3642449e41c/FLAG956ca18fd [2018-10-26 20:30:33,664 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/f41df1d2b/a0dbc23aa3bd42c3afc4e3642449e41c [2018-10-26 20:30:33,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:30:33,667 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 20:30:33,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:30:33,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:30:33,671 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:30:33,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4f184d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33, skipping insertion in model container [2018-10-26 20:30:33,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:30:33,694 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:30:33,809 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:30:33,811 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:30:33,820 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:30:33,829 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:30:33,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33 WrapperNode [2018-10-26 20:30:33,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:30:33,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:30:33,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:30:33,830 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:30:33,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... [2018-10-26 20:30:33,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:30:33,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:30:33,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:30:33,855 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:30:33,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/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 [2018-10-26 20:30:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:30:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:30:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 20:30:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:30:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 20:30:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 20:30:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 20:30:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:30:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:30:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:30:34,165 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:30:34,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:30:34 BoogieIcfgContainer [2018-10-26 20:30:34,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:30:34,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:30:34,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:30:34,170 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:30:34,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:30:33" (1/3) ... [2018-10-26 20:30:34,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40efcf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:30:34, skipping insertion in model container [2018-10-26 20:30:34,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:33" (2/3) ... [2018-10-26 20:30:34,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40efcf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:30:34, skipping insertion in model container [2018-10-26 20:30:34,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:30:34" (3/3) ... [2018-10-26 20:30:34,175 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-10-26 20:30:34,184 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:30:34,190 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:30:34,205 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:30:34,231 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 20:30:34,232 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:30:34,232 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:30:34,232 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:30:34,232 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:30:34,232 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:30:34,232 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:30:34,232 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:30:34,232 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:30:34,248 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-26 20:30:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 20:30:34,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:30:34,254 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:30:34,256 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:30:34,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:30:34,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-10-26 20:30:34,263 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:30:34,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:30:34,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:30:34,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:30:34,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:30:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:30:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:30:34,352 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 20:30:34,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:30:34 BoogieIcfgContainer [2018-10-26 20:30:34,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:30:34,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:30:34,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:30:34,371 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:30:34,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:30:34" (3/4) ... [2018-10-26 20:30:34,376 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 20:30:34,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:30:34,377 INFO L168 Benchmark]: Toolchain (without parser) took 710.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:30:34,378 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:30:34,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.04 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:34,379 INFO L168 Benchmark]: Boogie Preprocessor took 24.40 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:30:34,380 INFO L168 Benchmark]: RCFGBuilder took 311.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:34,380 INFO L168 Benchmark]: TraceAbstraction took 203.61 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:34,382 INFO L168 Benchmark]: Witness Printer took 5.19 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. [2018-10-26 20:30:34,385 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 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.04 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.40 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 311.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 203.61 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.19 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] COND TRUE x >= -1e10 && x <= 1e10 VAL [x=2] [L14] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 0.1.23-1dbac8b [2018-10-26 20:30:36,212 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:30:36,214 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:30:36,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:30:36,226 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:30:36,227 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:30:36,228 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:30:36,229 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:30:36,230 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:30:36,231 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:30:36,232 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:30:36,232 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:30:36,232 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:30:36,234 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:30:36,235 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:30:36,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:30:36,236 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:30:36,238 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:30:36,239 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:30:36,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:30:36,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:30:36,242 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:30:36,244 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:30:36,244 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:30:36,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:30:36,246 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:30:36,246 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:30:36,247 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:30:36,248 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:30:36,249 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:30:36,249 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:30:36,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:30:36,250 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:30:36,250 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:30:36,251 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:30:36,251 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:30:36,252 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 20:30:36,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:30:36,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:30:36,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:30:36,265 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:30:36,265 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:30:36,266 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:30:36,266 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 20:30:36,266 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:30:36,266 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:30:36,266 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:30:36,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:30:36,266 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:30:36,267 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:30:36,268 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:30:36,268 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 20:30:36,268 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:30:36,268 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 20:30:36,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 20:30:36,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:30:36,271 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:30:36,271 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:30:36,271 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 20:30:36,271 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:30:36,271 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 20:30:36,271 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 20:30:36,271 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_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-10-26 20:30:36,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:30:36,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:30:36,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:30:36,319 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:30:36,319 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:30:36,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-10-26 20:30:36,362 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/d46a454fa/602dc3be4c4944d693503cd182af3e8d/FLAG86eff5bcb [2018-10-26 20:30:36,728 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:30:36,728 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-10-26 20:30:36,732 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/d46a454fa/602dc3be4c4944d693503cd182af3e8d/FLAG86eff5bcb [2018-10-26 20:30:36,743 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/data/d46a454fa/602dc3be4c4944d693503cd182af3e8d [2018-10-26 20:30:36,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:30:36,747 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 20:30:36,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:30:36,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:30:36,751 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:30:36,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f662ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36, skipping insertion in model container [2018-10-26 20:30:36,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:30:36,786 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:30:36,915 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:30:36,920 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:30:36,932 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:30:36,944 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:30:36,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36 WrapperNode [2018-10-26 20:30:36,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:30:36,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:30:36,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:30:36,945 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:30:36,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... [2018-10-26 20:30:36,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:30:36,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:30:36,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:30:36,973 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:30:36,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/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 [2018-10-26 20:30:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 20:30:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:30:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 20:30:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 20:30:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 20:30:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-26 20:30:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 20:30:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 20:30:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 20:30:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:30:37,405 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:30:37,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:30:37 BoogieIcfgContainer [2018-10-26 20:30:37,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:30:37,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 20:30:37,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 20:30:37,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 20:30:37,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:30:36" (1/3) ... [2018-10-26 20:30:37,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4b3bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:30:37, skipping insertion in model container [2018-10-26 20:30:37,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:30:36" (2/3) ... [2018-10-26 20:30:37,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4b3bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:30:37, skipping insertion in model container [2018-10-26 20:30:37,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:30:37" (3/3) ... [2018-10-26 20:30:37,415 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-10-26 20:30:37,424 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 20:30:37,431 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 20:30:37,447 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 20:30:37,473 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 20:30:37,474 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 20:30:37,474 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 20:30:37,474 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 20:30:37,474 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 20:30:37,474 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 20:30:37,474 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 20:30:37,474 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 20:30:37,475 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 20:30:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-26 20:30:37,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-26 20:30:37,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:30:37,496 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:30:37,498 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:30:37,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:30:37,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-10-26 20:30:37,508 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 20:30:37,508 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 20:30:37,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 20:30:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:30:37,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:30:37,864 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-10-26 20:30:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:30:38,350 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 20:30:38,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:30:38,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 20:30:38,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 20:30:38,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 20:30:38,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 20:30:38,372 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-10-26 20:30:38,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:30:38,819 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-26 20:30:38,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 20:30:38,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-10-26 20:30:38,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:30:38,831 INFO L225 Difference]: With dead ends: 28 [2018-10-26 20:30:38,832 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:30:38,835 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:30:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:30:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:30:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:30:38,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:30:38,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-26 20:30:38,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:30:38,858 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:30:38,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 20:30:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:30:38,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:30:38,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:30:39,146 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-10-26 20:30:39,148 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 20:30:39,148 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:30:39,148 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 20:30:39,149 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 20:30:39,149 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 20:30:39,149 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 20:30:39,149 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (fp.geq ((_ to_fp 11 53) RNE main_~x~0) (fp.neg ((_ to_fp 11 53) RNE 10000000000.0))) [2018-10-26 20:30:39,150 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 17) the Hoare annotation is: true [2018-10-26 20:30:39,150 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-10-26 20:30:39,150 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 17) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 17) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 6) the Hoare annotation is: true [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 6) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-10-26 20:30:39,151 INFO L425 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2018-10-26 20:30:39,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:30:39 BoogieIcfgContainer [2018-10-26 20:30:39,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 20:30:39,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:30:39,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:30:39,157 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:30:39,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:30:37" (3/4) ... [2018-10-26 20:30:39,161 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 20:30:39,167 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 20:30:39,168 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 20:30:39,168 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 20:30:39,171 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 20:30:39,171 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 20:30:39,172 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 20:30:39,201 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3ffba836-1a00-4cb0-bbb6-eec16e32b68c/bin-2019/uautomizer/witness.graphml [2018-10-26 20:30:39,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:30:39,202 INFO L168 Benchmark]: Toolchain (without parser) took 2456.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:39,203 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-10-26 20:30:39,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:39,203 INFO L168 Benchmark]: Boogie Preprocessor took 27.49 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:30:39,204 INFO L168 Benchmark]: RCFGBuilder took 432.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 943.8 MB in the beginning and 1.2 GB in the end (delta: -222.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:39,204 INFO L168 Benchmark]: TraceAbstraction took 1749.26 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: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. [2018-10-26 20:30:39,205 INFO L168 Benchmark]: Witness Printer took 45.31 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. [2018-10-26 20:30:39,207 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 197.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.49 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 432.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 943.8 MB in the beginning and 1.2 GB in the end (delta: -222.8 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1749.26 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: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.31 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: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 7 SDslu, 40 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 2 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...