./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e ......................................................................................................................................................................................................................... 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/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:30:04,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:30:04,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:30:04,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:30:04,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:30:04,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:30:04,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:30:04,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:30:04,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:30:04,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:30:04,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:30:04,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:30:04,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:30:04,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:30:04,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:30:04,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:30:04,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:30:04,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:30:04,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:30:04,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:30:04,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:30:04,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:30:04,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:30:04,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:30:04,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:30:04,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:30:04,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:30:04,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:30:04,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:30:04,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:30:04,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:30:04,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:30:04,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:30:04,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:30:04,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:30:04,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:30:04,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:30:04,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:30:04,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:30:04,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:30:04,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:30:04,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:30:04,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:30:04,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:30:04,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:30:04,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:30:04,940 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:30:04,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:30:04,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:30:04,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:30:04,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:30:04,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:30:04,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:30:04,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:30:04,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:30:04,942 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:30:04,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:30:04,943 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:30:04,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:30:04,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:30:04,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:30:04,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:30:04,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:30:04,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:04,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:30:04,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:30:04,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:30:04,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:30:04,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:30:04,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:30:04,946 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/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2019-11-16 00:30:04,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:30:05,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:30:05,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:30:05,024 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:30:05,024 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:30:05,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2019-11-16 00:30:05,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/9d741716d/e6c024b1858b4b2bab2b36fd1de6a2f0/FLAG092c90102 [2019-11-16 00:30:05,505 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:30:05,506 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/sv-benchmarks/c/float-benchs/nan_float_range.c [2019-11-16 00:30:05,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/9d741716d/e6c024b1858b4b2bab2b36fd1de6a2f0/FLAG092c90102 [2019-11-16 00:30:05,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/9d741716d/e6c024b1858b4b2bab2b36fd1de6a2f0 [2019-11-16 00:30:05,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:30:05,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:30:05,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:05,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:30:05,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:30:05,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:05" (1/1) ... [2019-11-16 00:30:05,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6538533d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:05, skipping insertion in model container [2019-11-16 00:30:05,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:05" (1/1) ... [2019-11-16 00:30:05,959 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:30:05,983 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:30:06,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:06,315 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:30:06,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:06,355 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:30:06,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06 WrapperNode [2019-11-16 00:30:06,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:06,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:06,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:30:06,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:30:06,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:06,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:30:06,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:30:06,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:30:06,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... [2019-11-16 00:30:06,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:30:06,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:30:06,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:30:06,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:30:06,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 [2019-11-16 00:30:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:30:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:30:06,637 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:30:06,637 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-16 00:30:06,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:06 BoogieIcfgContainer [2019-11-16 00:30:06,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:30:06,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:30:06,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:30:06,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:30:06,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:05" (1/3) ... [2019-11-16 00:30:06,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428d0972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:06, skipping insertion in model container [2019-11-16 00:30:06,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:06" (2/3) ... [2019-11-16 00:30:06,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428d0972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:06, skipping insertion in model container [2019-11-16 00:30:06,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:06" (3/3) ... [2019-11-16 00:30:06,651 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2019-11-16 00:30:06,661 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:30:06,671 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:30:06,682 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:30:06,705 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:30:06,706 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:30:06,706 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:30:06,706 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:30:06,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:30:06,707 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:30:06,707 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:30:06,707 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:30:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-16 00:30:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-16 00:30:06,729 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:06,730 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-16 00:30:06,732 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:06,739 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-11-16 00:30:06,746 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:30:06,747 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250592975] [2019-11-16 00:30:06,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:06,747 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:30:06,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:30:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:30:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:30:06,850 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:30:06,851 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:30:06,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:30:06 BoogieIcfgContainer [2019-11-16 00:30:06,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:30:06,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:30:06,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:30:06,867 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:30:06,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:06" (3/4) ... [2019-11-16 00:30:06,872 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:30:06,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:30:06,875 INFO L168 Benchmark]: Toolchain (without parser) took 934.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:30:06,877 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:30:06,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:06,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.62 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. [2019-11-16 00:30:06,885 INFO L168 Benchmark]: Boogie Preprocessor took 17.52 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. [2019-11-16 00:30:06,887 INFO L168 Benchmark]: RCFGBuilder took 224.00 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:06,888 INFO L168 Benchmark]: TraceAbstraction took 226.43 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:06,889 INFO L168 Benchmark]: Witness Printer took 5.54 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. [2019-11-16 00:30:06,901 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.62 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 17.52 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 224.00 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 226.43 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.54 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 someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] COND TRUE x >= -1e10 && x <= 1e10 [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 [2019-11-16 00:30:09,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:30:09,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:30:09,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:30:09,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:30:09,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:30:09,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:30:09,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:30:09,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:30:09,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:30:09,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:30:09,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:30:09,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:30:09,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:30:09,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:30:09,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:30:09,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:30:09,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:30:09,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:30:09,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:30:09,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:30:09,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:30:09,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:30:09,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:30:09,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:30:09,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:30:09,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:30:09,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:30:09,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:30:09,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:30:09,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:30:09,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:30:09,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:30:09,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:30:09,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:30:09,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:30:09,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:30:09,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:30:09,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:30:09,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:30:09,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:30:09,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:30:09,527 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:30:09,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:30:09,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:30:09,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:30:09,529 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:30:09,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:30:09,530 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:30:09,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:30:09,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:30:09,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:30:09,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:30:09,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:30:09,532 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:30:09,532 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:30:09,532 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:30:09,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:30:09,533 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:30:09,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:30:09,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:30:09,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:30:09,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:30:09,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:30:09,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:30:09,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:30:09,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:30:09,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:30:09,536 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:30:09,536 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:30:09,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:30:09,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:30:09,537 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/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2019-11-16 00:30:09,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:30:09,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:30:09,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:30:09,605 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:30:09,605 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:30:09,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2019-11-16 00:30:09,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/f98c38192/06cc3ab6f1f04c35a6af6b8d755c22f1/FLAG1ca02fc18 [2019-11-16 00:30:10,130 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:30:10,130 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/sv-benchmarks/c/float-benchs/nan_float_range.c [2019-11-16 00:30:10,137 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/f98c38192/06cc3ab6f1f04c35a6af6b8d755c22f1/FLAG1ca02fc18 [2019-11-16 00:30:10,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/data/f98c38192/06cc3ab6f1f04c35a6af6b8d755c22f1 [2019-11-16 00:30:10,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:30:10,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:30:10,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:10,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:30:10,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:30:10,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8b8747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10, skipping insertion in model container [2019-11-16 00:30:10,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,544 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:30:10,562 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:30:10,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:10,802 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:30:10,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:30:10,837 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:30:10,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10 WrapperNode [2019-11-16 00:30:10,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:30:10,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:10,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:30:10,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:30:10,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:30:10,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:30:10,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:30:10,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:30:10,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:10,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:11,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... [2019-11-16 00:30:11,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:30:11,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:30:11,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:30:11,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:30:11,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 [2019-11-16 00:30:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:30:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:30:11,341 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:30:11,341 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-16 00:30:11,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:11 BoogieIcfgContainer [2019-11-16 00:30:11,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:30:11,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:30:11,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:30:11,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:30:11,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:10" (1/3) ... [2019-11-16 00:30:11,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434cce2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:11, skipping insertion in model container [2019-11-16 00:30:11,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:10" (2/3) ... [2019-11-16 00:30:11,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434cce2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:11, skipping insertion in model container [2019-11-16 00:30:11,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:11" (3/3) ... [2019-11-16 00:30:11,351 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2019-11-16 00:30:11,361 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:30:11,368 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:30:11,378 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:30:11,401 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:30:11,401 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:30:11,401 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:30:11,401 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:30:11,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:30:11,402 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:30:11,402 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:30:11,402 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:30:11,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-16 00:30:11,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-16 00:30:11,422 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:30:11,423 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-16 00:30:11,424 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:30:11,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:30:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-11-16 00:30:11,438 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:30:11,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853718956] [2019-11-16 00:30:11,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/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 [2019-11-16 00:30:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:30:11,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-16 00:30:11,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:30:11,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:30:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:11,645 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:30:11,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:30:11,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853718956] [2019-11-16 00:30:11,692 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:30:11,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-16 00:30:11,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117915161] [2019-11-16 00:30:11,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-16 00:30:11,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:30:11,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-16 00:30:11,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-16 00:30:11,712 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-16 00:30:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:30:11,740 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-11-16 00:30:11,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:30:11,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-16 00:30:11,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:30:11,751 INFO L225 Difference]: With dead ends: 17 [2019-11-16 00:30:11,751 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:30:11,755 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 [2019-11-16 00:30:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:30:11,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:30:11,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:30:11,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:30:11,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-16 00:30:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:30:11,784 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:30:11,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-16 00:30:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:30:11,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:30:12,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:30:12,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:30:12,053 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:30:12,053 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:30:12,053 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:30:12,053 INFO L446 ceAbstractionStarter]: At program point L16(lines 8 17) the Hoare annotation is: true [2019-11-16 00:30:12,054 INFO L443 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2019-11-16 00:30:12,054 INFO L446 ceAbstractionStarter]: At program point L13-1(lines 13 15) the Hoare annotation is: true [2019-11-16 00:30:12,054 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-16 00:30:12,054 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-16 00:30:12,054 INFO L443 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-11-16 00:30:12,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:30:12 BoogieIcfgContainer [2019-11-16 00:30:12,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:30:12,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:30:12,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:30:12,060 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:30:12,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:11" (3/4) ... [2019-11-16 00:30:12,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:30:12,074 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-16 00:30:12,075 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-16 00:30:12,119 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_934a9655-1ddc-49f8-9ccd-3191529615b7/bin/uautomizer/witness.graphml [2019-11-16 00:30:12,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:30:12,121 INFO L168 Benchmark]: Toolchain (without parser) took 1595.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -105.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:12,122 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-16 00:30:12,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.96 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 940.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:12,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:12,125 INFO L168 Benchmark]: Boogie Preprocessor took 40.97 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. [2019-11-16 00:30:12,126 INFO L168 Benchmark]: RCFGBuilder took 333.55 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:12,126 INFO L168 Benchmark]: TraceAbstraction took 715.70 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:30:12,127 INFO L168 Benchmark]: Witness Printer took 59.55 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. [2019-11-16 00:30:12,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 312.96 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 940.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 128.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.97 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. * RCFGBuilder took 333.55 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 715.70 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.55 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: 0.6s, 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, 0.1s 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...