./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 188b463bddf1d83ecad723e2243b3ab1810c254e ................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 188b463bddf1d83ecad723e2243b3ab1810c254e ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:48:31,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:48:31,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:48:31,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:48:31,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:48:31,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:48:31,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:48:31,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:48:31,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:48:32,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:48:32,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:48:32,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:48:32,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:48:32,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:48:32,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:48:32,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:48:32,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:48:32,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:48:32,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:48:32,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:48:32,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:48:32,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:48:32,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:48:32,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:48:32,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:48:32,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:48:32,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:48:32,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:48:32,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:48:32,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:48:32,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:48:32,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:48:32,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:48:32,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:48:32,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:48:32,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:48:32,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:48:32,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:48:32,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:48:32,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:48:32,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:48:32,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:48:32,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:48:32,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:48:32,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:48:32,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:48:32,125 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:48:32,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:48:32,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:48:32,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:48:32,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:48:32,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:48:32,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:48:32,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:48:32,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:48:32,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:48:32,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:48:32,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:48:32,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:48:32,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:48:32,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:48:32,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:48:32,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:48:32,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:48:32,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:48:32,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:48:32,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:48:32,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:48:32,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:48:32,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:48:32,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:48:32,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-11-29 18:48:32,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:48:32,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:48:32,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:48:32,445 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:48:32,446 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:48:32,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-29 18:48:32,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/b920d7f4c/56a14e65750149259f5c4dc06009dda0/FLAGcebd6bf98 [2020-11-29 18:48:33,054 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:48:33,054 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-29 18:48:33,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/b920d7f4c/56a14e65750149259f5c4dc06009dda0/FLAGcebd6bf98 [2020-11-29 18:48:33,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/b920d7f4c/56a14e65750149259f5c4dc06009dda0 [2020-11-29 18:48:33,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:48:33,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:48:33,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:33,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:48:33,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:48:33,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6c0905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33, skipping insertion in model container [2020-11-29 18:48:33,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:48:33,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:48:33,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:33,662 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:48:33,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:33,705 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:48:33,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33 WrapperNode [2020-11-29 18:48:33,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:33,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:48:33,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:48:33,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:48:33,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:48:33,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:48:33,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:48:33,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:48:33,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... [2020-11-29 18:48:33,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:48:33,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:48:33,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:48:33,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:48:33,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/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 [2020-11-29 18:48:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:48:33,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:48:33,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:48:33,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:48:34,105 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:48:34,105 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 18:48:34,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:34 BoogieIcfgContainer [2020-11-29 18:48:34,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:48:34,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:48:34,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:48:34,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:48:34,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:48:33" (1/3) ... [2020-11-29 18:48:34,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264e41ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:34, skipping insertion in model container [2020-11-29 18:48:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:33" (2/3) ... [2020-11-29 18:48:34,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264e41ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:34, skipping insertion in model container [2020-11-29 18:48:34,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:34" (3/3) ... [2020-11-29 18:48:34,144 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-11-29 18:48:34,158 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:48:34,163 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:48:34,178 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:48:34,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:48:34,210 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:48:34,210 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:48:34,210 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:48:34,210 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:48:34,211 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:48:34,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:48:34,211 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:48:34,245 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-29 18:48:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:48:34,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:48:34,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 18:48:34,258 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:48:34,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:34,271 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-11-29 18:48:34,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:48:34,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170281701] [2020-11-29 18:48:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:48:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:34,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:48:34,520 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:48:34,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:48:34,553 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 18:48:34,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:48:34,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:48:34 BoogieIcfgContainer [2020-11-29 18:48:34,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:48:34,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:48:34,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:48:34,589 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:48:34,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:34" (3/4) ... [2020-11-29 18:48:34,596 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:48:34,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:48:34,600 INFO L168 Benchmark]: Toolchain (without parser) took 1168.33 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 74.7 MB in the end (delta: 23.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:34,601 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 83.9 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:34,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.75 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 99.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:34,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.05 ms. Allocated memory is still 123.7 MB. Free memory was 99.7 MB in the beginning and 98.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:34,606 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 ms. Allocated memory is still 123.7 MB. Free memory was 98.6 MB in the beginning and 97.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:34,608 INFO L168 Benchmark]: RCFGBuilder took 339.93 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 86.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:34,609 INFO L168 Benchmark]: TraceAbstraction took 475.27 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 75.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:34,610 INFO L168 Benchmark]: Witness Printer took 7.52 ms. Allocated memory is still 123.7 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:34,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 83.9 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.75 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 99.7 MB in the end (delta: -1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.05 ms. Allocated memory is still 123.7 MB. Free memory was 99.7 MB in the beginning and 98.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.94 ms. Allocated memory is still 123.7 MB. Free memory was 98.6 MB in the beginning and 97.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 339.93 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 86.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 475.27 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 75.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 7.52 ms. Allocated memory is still 123.7 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_float_range.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 5 NumberOfCodeBlocks, 5 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, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-29 18:48:37,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:48:37,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:48:37,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:48:37,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:48:37,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:48:37,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:48:37,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:48:37,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:48:37,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:48:37,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:48:37,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:48:37,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:48:37,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:48:37,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:48:37,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:48:37,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:48:37,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:48:37,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:48:37,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:48:37,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:48:37,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:48:37,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:48:37,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:48:37,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:48:37,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:48:37,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:48:37,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:48:37,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:48:38,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:48:38,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:48:38,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:48:38,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:48:38,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:48:38,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:48:38,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:48:38,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:48:38,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:48:38,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:48:38,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:48:38,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:48:38,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:48:38,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:48:38,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:48:38,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:48:38,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:48:38,045 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:48:38,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:48:38,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:48:38,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:48:38,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:48:38,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:48:38,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:48:38,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:48:38,048 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:48:38,048 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:48:38,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:48:38,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:48:38,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:48:38,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:48:38,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:48:38,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:48:38,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:48:38,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:48:38,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:48:38,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:48:38,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:48:38,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:48:38,052 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:48:38,053 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:48:38,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:48:38,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:48:38,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:48:38,054 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-11-29 18:48:38,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:48:38,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:48:38,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:48:38,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:48:38,525 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:48:38,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-29 18:48:38,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/dad0dd7e2/7443311b38734e7c9def6588cfe16f18/FLAGdb7c8fc86 [2020-11-29 18:48:39,297 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:48:39,298 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-29 18:48:39,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/dad0dd7e2/7443311b38734e7c9def6588cfe16f18/FLAGdb7c8fc86 [2020-11-29 18:48:39,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/data/dad0dd7e2/7443311b38734e7c9def6588cfe16f18 [2020-11-29 18:48:39,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:48:39,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:48:39,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:39,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:48:39,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:48:39,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:39" (1/1) ... [2020-11-29 18:48:39,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@588ff89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39, skipping insertion in model container [2020-11-29 18:48:39,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:39" (1/1) ... [2020-11-29 18:48:39,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:48:39,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:48:39,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:39,955 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:48:39,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:48:40,003 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:48:40,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40 WrapperNode [2020-11-29 18:48:40,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:48:40,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:48:40,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:48:40,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:48:40,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:48:40,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:48:40,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:48:40,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:48:40,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... [2020-11-29 18:48:40,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:48:40,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:48:40,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:48:40,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:48:40,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/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 [2020-11-29 18:48:40,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:48:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:48:40,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:48:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:48:40,609 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:48:40,609 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 18:48:40,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:40 BoogieIcfgContainer [2020-11-29 18:48:40,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:48:40,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:48:40,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:48:40,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:48:40,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:48:39" (1/3) ... [2020-11-29 18:48:40,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b039f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:40, skipping insertion in model container [2020-11-29 18:48:40,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:40" (2/3) ... [2020-11-29 18:48:40,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b039f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:40, skipping insertion in model container [2020-11-29 18:48:40,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:40" (3/3) ... [2020-11-29 18:48:40,632 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-11-29 18:48:40,664 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:48:40,669 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:48:40,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:48:40,718 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:48:40,719 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:48:40,719 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:48:40,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:48:40,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:48:40,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:48:40,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:48:40,720 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:48:40,731 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-29 18:48:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 18:48:40,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:48:40,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 18:48:40,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:48:40,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:48:40,742 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-11-29 18:48:40,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:48:40,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364248878] [2020-11-29 18:48:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/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 [2020-11-29 18:48:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:48:40,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:48:40,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:48:40,908 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:48:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:41,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:48:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:48:41,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364248878] [2020-11-29 18:48:41,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:48:41,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 18:48:41,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811371967] [2020-11-29 18:48:41,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:48:41,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:48:41,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:48:41,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:48:41,127 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2020-11-29 18:48:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:48:41,162 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-29 18:48:41,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:48:41,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-29 18:48:41,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:48:41,173 INFO L225 Difference]: With dead ends: 19 [2020-11-29 18:48:41,174 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:48:41,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:48:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:48:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:48:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:48:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:48:41,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-29 18:48:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:48:41,207 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:48:41,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:48:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:48:41,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:48:41,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:48:41,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:48:41,471 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:48:41,471 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:48:41,471 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:48:41,471 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:48:41,472 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:48:41,472 INFO L277 CegarLoopResult]: At program point L18(lines 10 19) the Hoare annotation is: true [2020-11-29 18:48:41,472 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:48:41,472 INFO L277 CegarLoopResult]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2020-11-29 18:48:41,473 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-29 18:48:41,473 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-11-29 18:48:41,473 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 18:48:41,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:48:41 BoogieIcfgContainer [2020-11-29 18:48:41,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:48:41,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:48:41,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:48:41,483 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:48:41,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:40" (3/4) ... [2020-11-29 18:48:41,487 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:48:41,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 18:48:41,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:48:41,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:48:41,500 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:48:41,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b858bdf5-146b-4e1d-811d-d4e5214a22ce/bin/uautomizer/witness.graphml [2020-11-29 18:48:41,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:48:41,541 INFO L168 Benchmark]: Toolchain (without parser) took 1903.21 ms. Allocated memory is still 75.5 MB. Free memory was 58.2 MB in the beginning and 41.0 MB in the end (delta: 17.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:41,541 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 75.5 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:41,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.49 ms. Allocated memory is still 75.5 MB. Free memory was 57.9 MB in the beginning and 48.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:41,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.67 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 47.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:41,544 INFO L168 Benchmark]: Boogie Preprocessor took 50.31 ms. Allocated memory is still 75.5 MB. Free memory was 47.0 MB in the beginning and 46.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:41,545 INFO L168 Benchmark]: RCFGBuilder took 503.33 ms. Allocated memory is still 75.5 MB. Free memory was 45.7 MB in the beginning and 35.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:41,546 INFO L168 Benchmark]: TraceAbstraction took 868.93 ms. Allocated memory is still 75.5 MB. Free memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:48:41,546 INFO L168 Benchmark]: Witness Printer took 56.07 ms. Allocated memory is still 75.5 MB. Free memory was 43.5 MB in the beginning and 41.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:48:41,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 75.5 MB. Free memory is still 57.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.49 ms. Allocated memory is still 75.5 MB. Free memory was 57.9 MB in the beginning and 48.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.67 ms. Allocated memory is still 75.5 MB. Free memory was 48.4 MB in the beginning and 47.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.31 ms. Allocated memory is still 75.5 MB. Free memory was 47.0 MB in the beginning and 46.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 503.33 ms. Allocated memory is still 75.5 MB. Free memory was 45.7 MB in the beginning and 35.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 868.93 ms. Allocated memory is still 75.5 MB. Free memory was 34.6 MB in the beginning and 43.5 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 56.07 ms. Allocated memory is still 75.5 MB. Free memory was 43.5 MB in the beginning and 41.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...