./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 af383046837f49b57572febe7198ecca5fffa750 ............................................................................................................................................................................................................................ 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_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 af383046837f49b57572febe7198ecca5fffa750 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:47,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:47,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:47,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:47,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:47,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:47,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:47,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:47,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:47,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:47,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:47,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:47,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:47,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:47,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:47,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:47,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:47,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:47,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:47,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:47,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:47,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:47,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:47,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:47,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:47,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:47,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:47,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:47,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:47,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:47,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:47,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:47,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:47,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:47,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:47,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:47,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:47,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:47,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:47,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:47,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:47,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:47,596 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:47,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:47,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:47,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:47,598 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:47,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:47,598 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:47,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:47,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:47,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:47,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:47,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:47,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:47,599 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:47,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:47,600 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:47,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:47,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:47,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:47,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:47,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:47,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:47,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:47,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:47,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:47,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:47,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:47,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:47,602 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_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 -> af383046837f49b57572febe7198ecca5fffa750 [2019-11-25 08:51:47,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:47,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:47,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:47,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:47,764 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:47,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-11-25 08:51:47,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/b394168d3/83df0b12a8a84e4d8e09b0ee628c4dfe/FLAG922822e48 [2019-11-25 08:51:48,192 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:48,193 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-11-25 08:51:48,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/b394168d3/83df0b12a8a84e4d8e09b0ee628c4dfe/FLAG922822e48 [2019-11-25 08:51:48,622 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/b394168d3/83df0b12a8a84e4d8e09b0ee628c4dfe [2019-11-25 08:51:48,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:48,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:48,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:48,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:48,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:48,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4947b503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48, skipping insertion in model container [2019-11-25 08:51:48,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:48,668 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:48,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:48,966 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:48,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:49,013 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:49,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49 WrapperNode [2019-11-25 08:51:49,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:49,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:49,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:49,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:49,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:49,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:49,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:49,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:49,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... [2019-11-25 08:51:49,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:49,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:49,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:49,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:49,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 [2019-11-25 08:51:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:51:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:49,288 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:49,289 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:51:49,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:49 BoogieIcfgContainer [2019-11-25 08:51:49,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:49,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:49,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:49,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:49,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:48" (1/3) ... [2019-11-25 08:51:49,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478fe2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:49, skipping insertion in model container [2019-11-25 08:51:49,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:49" (2/3) ... [2019-11-25 08:51:49,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478fe2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:49, skipping insertion in model container [2019-11-25 08:51:49,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:49" (3/3) ... [2019-11-25 08:51:49,297 INFO L109 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2019-11-25 08:51:49,306 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:49,312 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:49,322 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:49,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:49,343 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:49,343 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:49,343 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:49,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:49,344 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:49,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:49,344 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-25 08:51:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:51:49,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:49,379 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:51:49,379 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:49,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,397 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-25 08:51:49,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687444203] [2019-11-25 08:51:49,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,609 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:49,609 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:51:49,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:49 BoogieIcfgContainer [2019-11-25 08:51:49,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:49,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:49,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:49,627 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:49,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:49" (3/4) ... [2019-11-25 08:51:49,631 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:51:49,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:49,633 INFO L168 Benchmark]: Toolchain (without parser) took 1005.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:49,634 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-25 08:51:49,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:49,635 INFO L168 Benchmark]: Boogie Preprocessor took 29.94 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. [2019-11-25 08:51:49,636 INFO L168 Benchmark]: RCFGBuilder took 211.50 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,637 INFO L168 Benchmark]: TraceAbstraction took 335.53 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:49,638 INFO L168 Benchmark]: Witness Printer took 4.61 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. [2019-11-25 08:51:49,644 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 385.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -191.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.94 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 211.50 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 335.53 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.61 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someUnaryDOUBLEoperation at line 111. Possible FailurePath: [L100] float sum = a + b; [L101] union mix m; [L102] m.f = sum [L103] EXPR m.i [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, 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=10occurred 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 0.1.24-6b5699a [2019-11-25 08:51:51,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:51,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:51,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:51,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:51,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:51,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:51,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:51,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:51,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:51,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:51,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:51,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:51,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:51,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:51,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:51,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:51,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:51,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:51,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:51,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:51,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:51,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:51,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:51,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:51,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:51,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:51,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:51,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:51,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:51,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:51,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:51,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:51,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:51,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:51,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:51,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:51,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:51,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:51,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:51,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:51,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:51:51,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:51,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:51,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:51,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:51,660 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:51,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:51,661 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:51,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:51,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:51,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:51,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:51,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:51,662 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:51,662 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:51,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:51,663 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:51,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:51,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:51,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:51,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:51,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:51,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:51,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:51,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:51,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:51,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:51,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:51,666 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:51,666 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:51,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:51,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:51,667 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_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 -> af383046837f49b57572febe7198ecca5fffa750 [2019-11-25 08:51:51,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:51,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:51,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:51,947 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:51,948 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:51,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-11-25 08:51:52,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/42cb92c2e/6b93d435cbb5421a8b0b173cb42f8326/FLAG0a1c72ebd [2019-11-25 08:51:52,347 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:52,348 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-11-25 08:51:52,354 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/42cb92c2e/6b93d435cbb5421a8b0b173cb42f8326/FLAG0a1c72ebd [2019-11-25 08:51:52,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/data/42cb92c2e/6b93d435cbb5421a8b0b173cb42f8326 [2019-11-25 08:51:52,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:52,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:52,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:52,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:52,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:52,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c23c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:52, skipping insertion in model container [2019-11-25 08:51:52,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:52" (1/1) ... [2019-11-25 08:51:52,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:52,793 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:52,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:52,974 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:52,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:53,018 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:53,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53 WrapperNode [2019-11-25 08:51:53,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:53,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:53,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:53,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:53,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:53,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:53,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:53,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:53,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... [2019-11-25 08:51:53,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:53,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:53,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:53,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:53,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 [2019-11-25 08:51:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:51:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:51:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:53,363 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:53,363 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:51:53,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53 BoogieIcfgContainer [2019-11-25 08:51:53,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:53,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:53,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:53,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:53,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:52" (1/3) ... [2019-11-25 08:51:53,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d72a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:53, skipping insertion in model container [2019-11-25 08:51:53,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:53" (2/3) ... [2019-11-25 08:51:53,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d72a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:53, skipping insertion in model container [2019-11-25 08:51:53,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53" (3/3) ... [2019-11-25 08:51:53,371 INFO L109 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2019-11-25 08:51:53,380 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:53,387 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:53,397 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:53,424 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:53,424 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:53,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:53,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:53,425 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:53,425 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:53,425 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:53,425 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-25 08:51:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:51:53,446 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:53,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:51:53,457 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:53,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:53,466 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-25 08:51:53,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:53,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375162985] [2019-11-25 08:51:53,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/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 [2019-11-25 08:51:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:53,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:51:53,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:53,663 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:53,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:53,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375162985] [2019-11-25 08:51:53,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:53,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-25 08:51:53,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335230324] [2019-11-25 08:51:53,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:51:53,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:53,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:51:53,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:51:53,740 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2019-11-25 08:51:53,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:53,800 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-11-25 08:51:53,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:51:53,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-25 08:51:53,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:53,810 INFO L225 Difference]: With dead ends: 15 [2019-11-25 08:51:53,810 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:51:53,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:51:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:51:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:51:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:51:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:51:53,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-25 08:51:53,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:53,837 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:53,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:51:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:53,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:51:54,038 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:51:54,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:51:54,076 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:51:54,076 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:51:54,076 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:51:54,076 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:51:54,076 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2019-11-25 08:51:54,077 INFO L440 ceAbstractionStarter]: At program point L112(lines 108 113) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2019-11-25 08:51:54,077 INFO L440 ceAbstractionStarter]: At program point L105(lines 99 106) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2019-11-25 08:51:54,077 INFO L444 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-25 08:51:54,077 INFO L444 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2019-11-25 08:51:54,077 INFO L444 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2019-11-25 08:51:54,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:54,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:54,088 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:54,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:54,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:54 BoogieIcfgContainer [2019-11-25 08:51:54,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:54,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:54,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:54,092 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:54,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:53" (3/4) ... [2019-11-25 08:51:54,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:51:54,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-25 08:51:54,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-25 08:51:54,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:51:54,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_05cd99bd-43d1-4181-a50c-f4bf8f415f43/bin/uautomizer/witness.graphml [2019-11-25 08:51:54,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:54,147 INFO L168 Benchmark]: Toolchain (without parser) took 1393.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,147 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:54,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.27 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -211.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,149 INFO L168 Benchmark]: Boogie Preprocessor took 23.03 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,150 INFO L168 Benchmark]: RCFGBuilder took 239.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,150 INFO L168 Benchmark]: TraceAbstraction took 725.79 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: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,151 INFO L168 Benchmark]: Witness Printer took 53.58 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:54,154 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.27 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 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 82.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -211.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.03 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 239.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 725.79 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: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * Witness Printer took 53.58 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 108]: Loop Invariant [2019-11-25 08:51:54,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:54,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 99]: Loop Invariant [2019-11-25 08:51:54,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:51:54,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:51:54,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 4 NumberOfFragments, 6 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, 153 SizeOfPredicates, 10 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 10 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...