./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:52,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:52,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:52,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:52,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:52,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:52,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:52,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:52,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:52,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:52,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:52,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:52,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:52,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:52,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:52,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:52,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:52,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:52,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:53,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:53,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:53,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:53,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:53,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:53,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:53,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:53,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:53,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:53,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:53,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:53,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:53,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:53,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:53,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:53,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:53,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:53,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:53,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:53,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:53,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:53,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:53,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:53,031 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:53,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:53,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:53,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:53,033 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:53,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:53,033 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:53,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:53,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:53,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:53,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:53,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:53,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:53,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:53,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:53,035 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:53,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:53,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:53,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:53,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:53,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:53,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:53,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:53,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:53,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:53,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:53,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:53,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:53,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 -> dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e [2019-10-22 08:55:53,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:53,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:53,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:53,073 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:53,073 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:53,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2019-10-22 08:55:53,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/536ae2c89/42c7bf003f964ef7a517b316b29875d0/FLAGc2e3119e8 [2019-10-22 08:55:53,477 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:53,478 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/sv-benchmarks/c/float-benchs/nan_double_range.c [2019-10-22 08:55:53,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/536ae2c89/42c7bf003f964ef7a517b316b29875d0/FLAGc2e3119e8 [2019-10-22 08:55:53,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/536ae2c89/42c7bf003f964ef7a517b316b29875d0 [2019-10-22 08:55:53,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:53,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:53,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:53,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:53,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:53,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:53" (1/1) ... [2019-10-22 08:55:53,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd19f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:53, skipping insertion in model container [2019-10-22 08:55:53,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:53" (1/1) ... [2019-10-22 08:55:53,908 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:53,923 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:54,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:54,077 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:54,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:54,157 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:54,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54 WrapperNode [2019-10-22 08:55:54,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:54,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:54,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:54,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:54,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:54,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:54,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:54,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:54,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... [2019-10-22 08:55:54,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:54,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:54,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:54,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:54,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 [2019-10-22 08:55:54,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:54,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:54,397 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:54,398 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:54,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:54 BoogieIcfgContainer [2019-10-22 08:55:54,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:54,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:54,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:54,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:54,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:53" (1/3) ... [2019-10-22 08:55:54,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26713db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:54, skipping insertion in model container [2019-10-22 08:55:54,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:54" (2/3) ... [2019-10-22 08:55:54,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26713db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:54, skipping insertion in model container [2019-10-22 08:55:54,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:54" (3/3) ... [2019-10-22 08:55:54,409 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2019-10-22 08:55:54,418 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:54,425 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:54,437 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:54,459 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:54,459 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:54,459 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:54,459 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:54,459 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:54,459 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:54,459 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:54,459 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:54,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 08:55:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:55:54,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:54,478 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:55:54,479 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:54,483 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-10-22 08:55:54,490 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:54,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10662273] [2019-10-22 08:55:54,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:54,491 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:54,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:54,580 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:54,581 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:54,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:54 BoogieIcfgContainer [2019-10-22 08:55:54,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:54,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:54,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:54,596 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:54,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:54" (3/4) ... [2019-10-22 08:55:54,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:55:54,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:54,602 INFO L168 Benchmark]: Toolchain (without parser) took 707.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -164.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:54,603 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:54,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:54,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.20 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. [2019-10-22 08:55:54,605 INFO L168 Benchmark]: Boogie Preprocessor took 17.48 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. [2019-10-22 08:55:54,605 INFO L168 Benchmark]: RCFGBuilder took 194.04 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:54,606 INFO L168 Benchmark]: TraceAbstraction took 195.72 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:54,606 INFO L168 Benchmark]: Witness Printer took 4.57 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. [2019-10-22 08:55:54,609 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.20 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. * Boogie Preprocessor took 17.48 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. * RCFGBuilder took 194.04 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 195.72 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.57 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] double x; [L11] x = __VERIFIER_nondet_double() [L13] COND TRUE x >= -1e307 && x <= 1e307 [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-cad4683 [2019-10-22 08:55:56,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:56,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:56,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:56,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:56,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:56,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:56,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:56,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:56,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:56,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:56,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:56,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:56,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:56,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:56,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:56,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:56,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:56,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:56,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:56,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:56,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:56,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:56,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:56,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:56,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:56,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:56,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:56,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:56,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:56,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:56,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:56,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:56,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:56,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:56,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:56,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:56,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:56,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:56,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:56,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:56,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:55:56,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:56,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:56,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:56,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:56,630 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:56,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:56,631 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:56,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:56,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:56,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:56,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:56,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:56,632 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:55:56,632 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:55:56,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:56,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:56,632 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:56,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:56,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:56,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:56,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:56,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:56,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:56,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:56,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:56,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:56,634 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:55:56,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:55:56,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:56,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:55:56,634 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 -> dfb5ded2642d3c9d46596c0cba0f14bb34f1a46e [2019-10-22 08:55:56,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:56,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:56,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:56,673 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:56,673 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:56,673 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2019-10-22 08:55:56,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/74c0ae5ca/2692ec167e9b40dabccd5bc39bcecdbe/FLAG7e83b8148 [2019-10-22 08:55:57,101 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:57,102 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/sv-benchmarks/c/float-benchs/nan_double_range.c [2019-10-22 08:55:57,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/74c0ae5ca/2692ec167e9b40dabccd5bc39bcecdbe/FLAG7e83b8148 [2019-10-22 08:55:57,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/data/74c0ae5ca/2692ec167e9b40dabccd5bc39bcecdbe [2019-10-22 08:55:57,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:57,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:57,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:57,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:57,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:57,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adba133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57, skipping insertion in model container [2019-10-22 08:55:57,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,142 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:57,155 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:57,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:57,312 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:57,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:57,339 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:57,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57 WrapperNode [2019-10-22 08:55:57,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:57,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:57,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:57,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:57,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:57,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:57,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:57,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:57,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:57,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:57,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:57,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:57,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 [2019-10-22 08:55:57,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:57,603 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:57,603 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:57,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:57 BoogieIcfgContainer [2019-10-22 08:55:57,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:57,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:57,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:57,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:57,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:57" (1/3) ... [2019-10-22 08:55:57,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24152b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:57, skipping insertion in model container [2019-10-22 08:55:57,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (2/3) ... [2019-10-22 08:55:57,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24152b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:57, skipping insertion in model container [2019-10-22 08:55:57,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:57" (3/3) ... [2019-10-22 08:55:57,613 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2019-10-22 08:55:57,621 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:57,627 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:57,636 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:57,656 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:57,656 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:57,656 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:57,656 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:57,656 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:57,657 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:57,657 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:57,657 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:57,669 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 08:55:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:55:57,673 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:57,674 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:55:57,676 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:57,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:57,681 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-10-22 08:55:57,691 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:55:57,691 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485052055] [2019-10-22 08:55:57,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/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 [2019-10-22 08:55:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:57,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:55:57,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:57,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:55:57,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,805 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:55:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:57,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485052055] [2019-10-22 08:55:57,820 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:57,820 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 08:55:57,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963555716] [2019-10-22 08:55:57,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:57,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:55:57,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:57,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:57,838 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-10-22 08:55:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:57,854 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-10-22 08:55:57,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:57,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 08:55:57,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:57,861 INFO L225 Difference]: With dead ends: 17 [2019-10-22 08:55:57,862 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:57,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:57,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:57,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:57,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-10-22 08:55:57,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:57,886 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:57,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:57,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:58,087 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:55:58,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:55:58,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-22 08:55:58,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:55:58,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:55:58,121 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:55:58,121 INFO L446 ceAbstractionStarter]: At program point L16(lines 8 17) the Hoare annotation is: true [2019-10-22 08:55:58,121 INFO L443 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2019-10-22 08:55:58,122 INFO L446 ceAbstractionStarter]: At program point L13-1(lines 13 15) the Hoare annotation is: true [2019-10-22 08:55:58,122 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-22 08:55:58,122 INFO L443 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-10-22 08:55:58,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:58 BoogieIcfgContainer [2019-10-22 08:55:58,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:58,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:58,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:58,127 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:58,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:57" (3/4) ... [2019-10-22 08:55:58,130 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:58,139 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:55:58,139 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:55:58,169 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f38c7803-6597-43be-bd78-3d17247d041f/bin/uautomizer/witness.graphml [2019-10-22 08:55:58,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:58,171 INFO L168 Benchmark]: Toolchain (without parser) took 1042.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,171 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:58,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 942.9 MB in the beginning and 1.2 GB in the end (delta: -214.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,173 INFO L168 Benchmark]: Boogie Preprocessor took 18.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,173 INFO L168 Benchmark]: RCFGBuilder took 160.40 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: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,174 INFO L168 Benchmark]: TraceAbstraction took 518.75 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,174 INFO L168 Benchmark]: Witness Printer took 42.47 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:58,177 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 942.9 MB in the beginning and 1.2 GB in the end (delta: -214.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.40 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: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 518.75 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: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * Witness Printer took 42.47 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: 6.8 MB). Peak memory consumption was 6.8 MB. 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 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 4 SDslu, 10 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 4 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...