./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/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/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/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/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 [2019-10-22 08:54:54,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:54,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:54,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:54,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:54,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:54,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:54,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:54,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:54,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:54,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:54,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:54,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:54,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:54,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:54,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:54,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:54,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:54,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:54,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:54,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:54,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:54,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:54,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:54,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:54,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:54,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:54,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:54,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:54,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:54,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:54,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:54,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:54,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:54,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:54,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:54,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:54,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:54,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:54,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:54,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:54,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:54,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:54,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:54,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:54,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:54,274 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:54,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:54,274 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:54,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:54,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:54,276 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:54,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:54,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:54,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:54,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:54,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:54,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:54,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:54,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:54,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:54,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:54,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:54,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:54,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/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 [2019-10-22 08:54:54,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:54,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:54,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:54,316 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:54,316 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:54,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2019-10-22 08:54:54,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/549012e1a/47219d69eb434564a2ad01496155fb89/FLAG319e7d151 [2019-10-22 08:54:54,729 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:54,730 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/sv-benchmarks/c/float-benchs/nan_float_range.c [2019-10-22 08:54:54,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/549012e1a/47219d69eb434564a2ad01496155fb89/FLAG319e7d151 [2019-10-22 08:54:55,139 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/549012e1a/47219d69eb434564a2ad01496155fb89 [2019-10-22 08:54:55,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:55,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:55,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:55,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:55,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:55,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fda2e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55, skipping insertion in model container [2019-10-22 08:54:55,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,156 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:55,169 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:55,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:55,347 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:55,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:55,439 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:55,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55 WrapperNode [2019-10-22 08:54:55,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:55,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:55,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:55,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:55,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:55,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:55,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:55,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:55,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... [2019-10-22 08:54:55,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:55,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:55,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:55,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:55,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:55,683 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:55,684 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:54:55,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:55 BoogieIcfgContainer [2019-10-22 08:54:55,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:55,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:55,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:55,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:55,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:55" (1/3) ... [2019-10-22 08:54:55,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7544a34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:55, skipping insertion in model container [2019-10-22 08:54:55,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:55" (2/3) ... [2019-10-22 08:54:55,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7544a34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:55, skipping insertion in model container [2019-10-22 08:54:55,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:55" (3/3) ... [2019-10-22 08:54:55,692 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2019-10-22 08:54:55,702 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:55,710 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:55,720 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:55,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:55,746 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:55,747 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:55,747 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:55,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:55,747 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:55,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:55,748 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 08:54:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:54:55,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:55,769 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:54:55,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:55,777 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-10-22 08:54:55,786 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:55,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884609361] [2019-10-22 08:54:55,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:55,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:55,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:55,892 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:55,893 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:55,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:55 BoogieIcfgContainer [2019-10-22 08:54:55,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:55,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:55,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:55,906 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:55,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:55" (3/4) ... [2019-10-22 08:54:55,909 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:55,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:55,911 INFO L168 Benchmark]: Toolchain (without parser) took 768.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -127.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,911 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,913 INFO L168 Benchmark]: Boogie Preprocessor took 19.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,914 INFO L168 Benchmark]: RCFGBuilder took 195.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,914 INFO L168 Benchmark]: TraceAbstraction took 219.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:55,914 INFO L168 Benchmark]: Witness Printer took 3.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:55,917 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 219.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.48 ms. Allocated memory is still 1.1 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 [2019-10-22 08:54:57,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:57,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:57,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:57,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:57,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:57,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:57,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:57,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:57,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:57,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:57,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:57,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:57,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:57,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:57,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:57,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:57,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:57,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:57,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:57,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:57,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:57,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:57,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:57,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:57,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:57,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:57,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:57,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:57,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:57,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:57,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:57,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:57,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:57,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:57,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:57,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:57,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:57,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:57,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:57,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:57,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:57,947 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:57,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:57,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:57,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:57,949 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:57,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:57,949 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:57,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:57,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:57,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:57,951 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:57,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:57,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:57,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:57,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:57,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:57,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:57,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:57,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:57,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:57,952 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:57,952 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:57,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:57,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:57,953 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/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 [2019-10-22 08:54:57,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:57,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:57,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:57,995 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:57,996 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:57,996 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2019-10-22 08:54:58,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/3412feb2d/d5744888b13e41ebb22274aee129d7cb/FLAG5666df3e6 [2019-10-22 08:54:58,426 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:58,426 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/sv-benchmarks/c/float-benchs/nan_float_range.c [2019-10-22 08:54:58,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/3412feb2d/d5744888b13e41ebb22274aee129d7cb/FLAG5666df3e6 [2019-10-22 08:54:58,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/data/3412feb2d/d5744888b13e41ebb22274aee129d7cb [2019-10-22 08:54:58,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:58,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:58,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:58,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:58,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:58,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3670d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58, skipping insertion in model container [2019-10-22 08:54:58,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:58,483 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:58,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:58,630 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:58,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:58,652 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:58,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58 WrapperNode [2019-10-22 08:54:58,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:58,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:58,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:58,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:58,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:58,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:58,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:58,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:58,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... [2019-10-22 08:54:58,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:58,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:58,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:58,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:58,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:59,000 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:59,000 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:54:59,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:59 BoogieIcfgContainer [2019-10-22 08:54:59,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:59,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:59,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:59,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:59,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:58" (1/3) ... [2019-10-22 08:54:59,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df8002e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:59, skipping insertion in model container [2019-10-22 08:54:59,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:58" (2/3) ... [2019-10-22 08:54:59,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df8002e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:59, skipping insertion in model container [2019-10-22 08:54:59,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:59" (3/3) ... [2019-10-22 08:54:59,009 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2019-10-22 08:54:59,016 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:59,023 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:59,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:59,053 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:59,053 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:59,053 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:59,053 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:59,053 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:59,053 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:59,054 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:59,054 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 08:54:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:54:59,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:59,071 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:54:59,073 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:59,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:59,077 INFO L82 PathProgramCache]: Analyzing trace with hash 957382, now seen corresponding path program 1 times [2019-10-22 08:54:59,087 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:59,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967293365] [2019-10-22 08:54:59,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 08:54:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:54:59,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 08:54:59,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:54:59,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:54:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:59,256 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:54:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:54:59,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967293365] [2019-10-22 08:54:59,284 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:54:59,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 08:54:59,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774645165] [2019-10-22 08:54:59,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:54:59,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:54:59,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:54:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:59,299 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-10-22 08:54:59,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:54:59,316 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-10-22 08:54:59,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:54:59,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 08:54:59,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:54:59,324 INFO L225 Difference]: With dead ends: 17 [2019-10-22 08:54:59,324 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:54:59,327 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:54:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:54:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:54:59,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:54:59,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:54:59,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-10-22 08:54:59,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:54:59,347 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:54:59,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:54:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:54:59,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:54:59,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:54:59,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:54:59,598 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:54:59,598 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:54:59,598 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:54:59,598 INFO L446 ceAbstractionStarter]: At program point L16(lines 8 17) the Hoare annotation is: true [2019-10-22 08:54:59,599 INFO L443 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2019-10-22 08:54:59,599 INFO L446 ceAbstractionStarter]: At program point L13-1(lines 13 15) the Hoare annotation is: true [2019-10-22 08:54:59,599 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-22 08:54:59,599 INFO L443 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-10-22 08:54:59,599 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-22 08:54:59,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:59 BoogieIcfgContainer [2019-10-22 08:54:59,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:59,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:59,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:59,611 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:59,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:59" (3/4) ... [2019-10-22 08:54:59,614 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:54:59,623 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:54:59,623 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:54:59,656 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ed2b076f-6b6f-47bc-b284-cde3743e4b1c/bin/uautomizer/witness.graphml [2019-10-22 08:54:59,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:59,659 INFO L168 Benchmark]: Toolchain (without parser) took 1204.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,660 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:59,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -223.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,662 INFO L168 Benchmark]: Boogie Preprocessor took 17.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,662 INFO L168 Benchmark]: RCFGBuilder took 246.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,663 INFO L168 Benchmark]: TraceAbstraction took 608.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,663 INFO L168 Benchmark]: Witness Printer took 45.71 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:59,666 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 197.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -223.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 246.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 608.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.71 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: 6.6 MB). Peak memory consumption was 6.6 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: 0.5s, 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...