./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c --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_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 e20164d66b413fd1e6480d779b873570f1c551b2 ......................................................................................................................................................................................................................... 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_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 e20164d66b413fd1e6480d779b873570f1c551b2 ......................................................................................................................................................................................................................................................................................................... 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 08:46:28,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:28,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:28,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:28,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:28,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:28,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:28,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:28,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:28,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:28,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:28,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:28,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:28,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:28,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:28,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:28,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:28,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:28,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:28,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:28,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:28,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:28,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:28,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:28,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:28,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:28,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:28,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:28,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:28,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:28,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:28,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:28,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:28,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:28,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:28,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:28,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:28,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:28,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:28,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:28,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:28,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:46:28,795 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:28,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:28,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:28,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:28,800 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:28,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:28,800 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:28,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:46:28,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:28,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:28,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:46:28,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:46:28,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:46:28,802 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:28,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:28,802 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:28,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:46:28,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:28,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:28,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:46:28,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:46:28,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:46:28,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:28,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:46:28,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:46:28,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:46:28,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:46:28,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:46:28,804 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_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2019-11-25 08:46:28,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:28,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:28,949 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:28,956 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:28,956 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:28,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-25 08:46:29,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/e9d28fc53/7e0808618e4d48e3853a6ea325862d48/FLAG7a6d0fa7e [2019-11-25 08:46:29,405 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:29,407 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-25 08:46:29,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/e9d28fc53/7e0808618e4d48e3853a6ea325862d48/FLAG7a6d0fa7e [2019-11-25 08:46:29,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/e9d28fc53/7e0808618e4d48e3853a6ea325862d48 [2019-11-25 08:46:29,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:29,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:29,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:29,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:29,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:29,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a54c27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29, skipping insertion in model container [2019-11-25 08:46:29,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:29,467 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:29,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:29,771 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:46:29,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:29,804 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:46:29,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29 WrapperNode [2019-11-25 08:46:29,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:29,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:29,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:46:29,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:46:29,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:29,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:46:29,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:46:29,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:46:29,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... [2019-11-25 08:46:29,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:46:29,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:46:29,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:46:29,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:46:29,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 08:46:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:46:29,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:46:30,012 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:46:30,012 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:46:30,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:30 BoogieIcfgContainer [2019-11-25 08:46:30,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:46:30,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:46:30,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:46:30,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:46:30,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:46:29" (1/3) ... [2019-11-25 08:46:30,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c14057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:30, skipping insertion in model container [2019-11-25 08:46:30,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:29" (2/3) ... [2019-11-25 08:46:30,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c14057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:30, skipping insertion in model container [2019-11-25 08:46:30,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:30" (3/3) ... [2019-11-25 08:46:30,020 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2019-11-25 08:46:30,033 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:46:30,041 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:46:30,052 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:46:30,071 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:46:30,071 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:46:30,071 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:46:30,071 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:46:30,071 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:46:30,072 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:46:30,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:46:30,072 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:46:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-25 08:46:30,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-25 08:46:30,089 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:30,090 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-25 08:46:30,090 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:30,095 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-25 08:46:30,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:30,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117039607] [2019-11-25 08:46:30,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:30,183 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:30,184 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:46:30,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:46:30 BoogieIcfgContainer [2019-11-25 08:46:30,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:46:30,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:46:30,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:46:30,198 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:46:30,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:30" (3/4) ... [2019-11-25 08:46:30,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:46:30,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:46:30,203 INFO L168 Benchmark]: Toolchain (without parser) took 770.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:30,204 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:30,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:30,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.48 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 08:46:30,206 INFO L168 Benchmark]: Boogie Preprocessor took 12.82 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 08:46:30,206 INFO L168 Benchmark]: RCFGBuilder took 169.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:30,207 INFO L168 Benchmark]: TraceAbstraction took 182.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:30,208 INFO L168 Benchmark]: Witness Printer took 3.60 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 08:46:30,211 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 371.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.48 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 12.82 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 169.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 182.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.60 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: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 14, overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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, 3 NumberOfCodeBlocks, 3 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 08:46:32,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:32,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:32,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:32,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:32,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:32,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:32,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:32,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:32,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:32,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:32,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:32,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:32,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:32,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:32,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:32,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:32,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:32,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:32,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:32,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:32,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:32,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:32,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:32,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:32,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:32,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:32,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:32,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:32,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:32,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:32,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:32,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:32,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:32,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:32,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:32,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:32,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:32,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:32,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:32,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:32,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:46:32,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:32,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:32,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:32,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:32,218 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:32,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:32,218 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:32,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:32,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:32,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:46:32,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:46:32,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:46:32,219 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:46:32,219 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:46:32,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:46:32,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:32,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:32,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:32,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:46:32,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:32,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:32,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:46:32,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:46:32,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:46:32,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:32,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:46:32,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:46:32,223 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:46:32,223 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:46:32,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:46:32,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:46:32,224 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_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 -> e20164d66b413fd1e6480d779b873570f1c551b2 [2019-11-25 08:46:32,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:32,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:32,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:32,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:32,497 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:32,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-25 08:46:32,562 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/c1eaa9efb/5de91d1aaf9b4fa4b1fdd392c8bcb2a5/FLAG69e053ee0 [2019-11-25 08:46:32,979 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:32,979 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-25 08:46:32,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/c1eaa9efb/5de91d1aaf9b4fa4b1fdd392c8bcb2a5/FLAG69e053ee0 [2019-11-25 08:46:32,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/data/c1eaa9efb/5de91d1aaf9b4fa4b1fdd392c8bcb2a5 [2019-11-25 08:46:33,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:33,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:33,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:33,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:33,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:33,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:32" (1/1) ... [2019-11-25 08:46:33,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcbaa2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33, skipping insertion in model container [2019-11-25 08:46:33,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:32" (1/1) ... [2019-11-25 08:46:33,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:33,030 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:33,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:33,226 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:46:33,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:33,257 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:46:33,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33 WrapperNode [2019-11-25 08:46:33,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:33,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:33,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:46:33,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:46:33,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:33,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:46:33,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:46:33,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:46:33,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... [2019-11-25 08:46:33,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:46:33,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:46:33,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:46:33,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:46:33,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 08:46:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:46:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:46:34,316 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:46:34,316 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:46:34,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:34 BoogieIcfgContainer [2019-11-25 08:46:34,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:46:34,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:46:34,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:46:34,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:46:34,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:46:32" (1/3) ... [2019-11-25 08:46:34,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28adc452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:34, skipping insertion in model container [2019-11-25 08:46:34,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:33" (2/3) ... [2019-11-25 08:46:34,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28adc452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:34, skipping insertion in model container [2019-11-25 08:46:34,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:34" (3/3) ... [2019-11-25 08:46:34,324 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2019-11-25 08:46:34,332 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:46:34,338 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:46:34,345 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:46:34,364 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:46:34,364 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:46:34,364 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:46:34,364 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:46:34,364 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:46:34,364 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:46:34,365 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:46:34,365 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:46:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-25 08:46:34,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:46:34,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:34,381 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:46:34,381 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:34,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:34,385 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-25 08:46:34,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:46:34,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054900013] [2019-11-25 08:46:34,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/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 08:46:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:34,619 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:46:34,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:46:34,703 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 08:46:34,703 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:46:34,749 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 08:46:34,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054900013] [2019-11-25 08:46:34,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:34,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-25 08:46:34,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226204928] [2019-11-25 08:46:34,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:46:34,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:46:34,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:34,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:34,771 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2019-11-25 08:46:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:35,043 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-25 08:46:35,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:46:35,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-11-25 08:46:35,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:35,058 INFO L225 Difference]: With dead ends: 13 [2019-11-25 08:46:35,059 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:46:35,061 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:46:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:46:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:46:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:46:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:46:35,084 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-25 08:46:35,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:35,084 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:46:35,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:46:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:46:35,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:46:35,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:46:35,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:46:35,368 INFO L440 ceAbstractionStarter]: At program point L4-3(line 4) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:46:35,368 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:46:35,368 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:46:35,368 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:46:35,369 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:46:35,369 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-25 08:46:35,369 INFO L440 ceAbstractionStarter]: At program point L15(lines 6 16) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:46:35,369 INFO L444 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-25 08:46:35,369 INFO L444 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-11-25 08:46:35,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:46:35,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:46:35,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:46:35,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:46:35,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:46:35 BoogieIcfgContainer [2019-11-25 08:46:35,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:46:35,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:46:35,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:46:35,384 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:46:35,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:34" (3/4) ... [2019-11-25 08:46:35,388 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:46:35,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-25 08:46:35,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:46:35,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:46:35,431 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d2da8e8c-dd82-45fa-88cb-54dcddcf02d7/bin/uautomizer/witness.graphml [2019-11-25 08:46:35,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:46:35,433 INFO L168 Benchmark]: Toolchain (without parser) took 2431.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:35,433 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 08:46:35,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:35,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -237.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:35,435 INFO L168 Benchmark]: Boogie Preprocessor took 30.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:35,436 INFO L168 Benchmark]: RCFGBuilder took 909.40 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:35,436 INFO L168 Benchmark]: TraceAbstraction took 1065.31 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:35,436 INFO L168 Benchmark]: Witness Printer took 47.21 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 08:46:35,439 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 255.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 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 118.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -237.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 909.40 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1065.31 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.21 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.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: 4]: 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: 6]: Loop Invariant [2019-11-25 08:46:35,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:46:35,446 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 4]: Loop Invariant [2019-11-25 08:46:35,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:46:35,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:46:35,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 11 ConjunctsInSsa, 8 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...