./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_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan --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 Taipan --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_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan --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 Taipan --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 [2019-11-26 03:02:18,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:02:18,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:02:18,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:02:18,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:02:18,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:02:18,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:02:18,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:02:18,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:02:18,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:02:18,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:02:18,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:02:18,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:02:18,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:02:18,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:02:18,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:02:18,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:02:18,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:02:18,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:02:18,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:02:18,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:02:18,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:02:18,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:02:18,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:02:18,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:02:18,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:02:18,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:02:18,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:02:18,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:02:18,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:02:18,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:02:18,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:02:18,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:02:18,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:02:18,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:02:18,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:02:18,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:02:18,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:02:18,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:02:18,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:02:18,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:02:18,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 03:02:18,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:02:18,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:02:18,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:02:18,107 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:02:18,107 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:02:18,107 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:02:18,108 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 03:02:18,108 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:02:18,108 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:02:18,108 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 03:02:18,108 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 03:02:18,108 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:02:18,109 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 03:02:18,109 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 03:02:18,109 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 03:02:18,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:02:18,110 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:02:18,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 03:02:18,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:02:18,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:02:18,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:02:18,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:02:18,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:02:18,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:02:18,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:02:18,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:02:18,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:02:18,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:02:18,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:02:18,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:02:18,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:02:18,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:02:18,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:02:18,113 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 03:02:18,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 03:02:18,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:02:18,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:02:18,113 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan 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 -> Taipan 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 [2019-11-26 03:02:18,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:02:18,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:02:18,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:02:18,297 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:02:18,297 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:02:18,298 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-26 03:02:18,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/aac3a96ff/721532c8f6234b4890f0cad9ead046b9/FLAGc0ad96efd [2019-11-26 03:02:18,747 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:02:18,748 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-26 03:02:18,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/aac3a96ff/721532c8f6234b4890f0cad9ead046b9/FLAGc0ad96efd [2019-11-26 03:02:19,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/aac3a96ff/721532c8f6234b4890f0cad9ead046b9 [2019-11-26 03:02:19,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:02:19,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:02:19,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:19,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:02:19,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:02:19,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50bd8770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19, skipping insertion in model container [2019-11-26 03:02:19,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:02:19,197 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:02:19,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:19,388 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:02:19,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:19,413 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:02:19,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19 WrapperNode [2019-11-26 03:02:19,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:19,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:19,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:02:19,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:02:19,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:19,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:02:19,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:02:19,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:02:19,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... [2019-11-26 03:02:19,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:02:19,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:02:19,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:02:19,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:02:19,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/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 [2019-11-26 03:02:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:02:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:02:19,694 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:02:19,694 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 03:02:19,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:19 BoogieIcfgContainer [2019-11-26 03:02:19,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:02:19,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:02:19,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:02:19,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:02:19,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:02:19" (1/3) ... [2019-11-26 03:02:19,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6774b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:19, skipping insertion in model container [2019-11-26 03:02:19,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:19" (2/3) ... [2019-11-26 03:02:19,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6774b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:19, skipping insertion in model container [2019-11-26 03:02:19,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:19" (3/3) ... [2019-11-26 03:02:19,703 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2019-11-26 03:02:19,711 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:02:19,717 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 03:02:19,727 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 03:02:19,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:02:19,746 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:02:19,746 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:02:19,746 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:02:19,746 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:02:19,746 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:02:19,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:02:19,747 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:02:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 03:02:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 03:02:19,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:19,763 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 03:02:19,763 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:19,769 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-26 03:02:19,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 03:02:19,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904348277] [2019-11-26 03:02:19,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 03:02:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:02:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:02:19,874 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 03:02:19,874 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 03:02:19,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:02:19 BoogieIcfgContainer [2019-11-26 03:02:19,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:02:19,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:02:19,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:02:19,890 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:02:19,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:19" (3/4) ... [2019-11-26 03:02:19,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 03:02:19,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:02:19,896 INFO L168 Benchmark]: Toolchain (without parser) took 729.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:19,896 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-26 03:02:19,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:19,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.45 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. [2019-11-26 03:02:19,898 INFO L168 Benchmark]: Boogie Preprocessor took 18.23 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. [2019-11-26 03:02:19,899 INFO L168 Benchmark]: RCFGBuilder took 232.64 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:19,899 INFO L168 Benchmark]: TraceAbstraction took 192.84 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. [2019-11-26 03:02:19,900 INFO L168 Benchmark]: Witness Printer took 4.34 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. [2019-11-26 03:02:19,903 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 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.45 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 18.23 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 232.64 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 192.84 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 4.34 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, 6 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=6occurred 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 [2019-11-26 03:02:21,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:02:21,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:02:21,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:02:21,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:02:21,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:02:21,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:02:21,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:02:21,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:02:21,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:02:21,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:02:21,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:02:21,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:02:21,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:02:21,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:02:21,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:02:21,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:02:21,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:02:21,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:02:21,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:02:21,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:02:21,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:02:21,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:02:21,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:02:21,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:02:21,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:02:21,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:02:21,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:02:21,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:02:21,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:02:21,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:02:21,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:02:21,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:02:21,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:02:21,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:02:21,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:02:21,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:02:21,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:02:21,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:02:21,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:02:21,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:02:21,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 03:02:21,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:02:21,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:02:21,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:02:21,787 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 03:02:21,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 03:02:21,787 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 03:02:21,787 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 03:02:21,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 03:02:21,788 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 03:02:21,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:02:21,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 03:02:21,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 03:02:21,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:02:21,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:02:21,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:02:21,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:02:21,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 03:02:21,790 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 03:02:21,790 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 03:02:21,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 03:02:21,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:02:21,791 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 03:02:21,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:02:21,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:02:21,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 03:02:21,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:02:21,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 03:02:21,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 03:02:21,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:02:21,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:02:21,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:02:21,793 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 03:02:21,793 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 03:02:21,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:02:21,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 03:02:21,794 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_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan 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 -> Taipan 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 [2019-11-26 03:02:22,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:02:22,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:02:22,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:02:22,089 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:02:22,089 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:02:22,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-26 03:02:22,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/667fd44ef/839ec41b8a30457a93510591a0976faf/FLAGe3f848503 [2019-11-26 03:02:22,474 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:02:22,475 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2019-11-26 03:02:22,480 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/667fd44ef/839ec41b8a30457a93510591a0976faf/FLAGe3f848503 [2019-11-26 03:02:22,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/data/667fd44ef/839ec41b8a30457a93510591a0976faf [2019-11-26 03:02:22,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:02:22,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:02:22,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:22,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:02:22,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:02:22,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:22" (1/1) ... [2019-11-26 03:02:22,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ff668f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:22, skipping insertion in model container [2019-11-26 03:02:22,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:02:22" (1/1) ... [2019-11-26 03:02:22,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:02:22,907 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:02:23,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:23,051 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:02:23,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:02:23,076 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:02:23,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23 WrapperNode [2019-11-26 03:02:23,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:02:23,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:23,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:02:23,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:02:23,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:02:23,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:02:23,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:02:23,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:02:23,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... [2019-11-26 03:02:23,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:02:23,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:02:23,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:02:23,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:02:23,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/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 [2019-11-26 03:02:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:02:23,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:02:24,019 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:02:24,020 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 03:02:24,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:24 BoogieIcfgContainer [2019-11-26 03:02:24,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:02:24,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 03:02:24,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 03:02:24,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 03:02:24,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 03:02:22" (1/3) ... [2019-11-26 03:02:24,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af66bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:24, skipping insertion in model container [2019-11-26 03:02:24,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:02:23" (2/3) ... [2019-11-26 03:02:24,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af66bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 03:02:24, skipping insertion in model container [2019-11-26 03:02:24,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:24" (3/3) ... [2019-11-26 03:02:24,027 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2019-11-26 03:02:24,035 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 03:02:24,039 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 03:02:24,046 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 03:02:24,063 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 03:02:24,063 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 03:02:24,063 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 03:02:24,063 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 03:02:24,063 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 03:02:24,063 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 03:02:24,063 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 03:02:24,064 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 03:02:24,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 03:02:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 03:02:24,080 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 03:02:24,080 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 03:02:24,081 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 03:02:24,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:02:24,086 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-26 03:02:24,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 03:02:24,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036353132] [2019-11-26 03:02:24,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/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 [2019-11-26 03:02:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 03:02:24,340 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 03:02:24,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 03:02:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:24,421 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 03:02:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 03:02:24,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036353132] [2019-11-26 03:02:24,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 03:02:24,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 03:02:24,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970559014] [2019-11-26 03:02:24,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 03:02:24,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 03:02:24,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 03:02:24,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 03:02:24,467 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2019-11-26 03:02:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 03:02:24,715 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-26 03:02:24,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 03:02:24,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-11-26 03:02:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 03:02:24,721 INFO L225 Difference]: With dead ends: 13 [2019-11-26 03:02:24,721 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 03:02:24,724 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 [2019-11-26 03:02:24,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 03:02:24,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 03:02:24,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 03:02:24,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 03:02:24,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-26 03:02:24,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 03:02:24,743 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 03:02:24,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 03:02:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 03:02:24,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 03:02:24,947 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 03:02:24,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 03:02:25,027 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)) [2019-11-26 03:02:25,027 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 03:02:25,027 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 03:02:25,028 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 03:02:25,028 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 03:02:25,028 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-26 03:02:25,028 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)) [2019-11-26 03:02:25,028 INFO L444 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-26 03:02:25,029 INFO L444 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-11-26 03:02:25,035 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,037 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 03:02:25,039 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 03:02:25,040 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,040 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 03:02:25,040 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 03:02:25,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 03:02:25 BoogieIcfgContainer [2019-11-26 03:02:25,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 03:02:25,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:02:25,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:02:25,043 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:02:25,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:02:24" (3/4) ... [2019-11-26 03:02:25,047 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 03:02:25,056 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 03:02:25,056 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 03:02:25,056 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 03:02:25,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6b9f6cd2-70fb-4758-878d-be2a48ed7e4c/bin/utaipan/witness.graphml [2019-11-26 03:02:25,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:02:25,096 INFO L168 Benchmark]: Toolchain (without parser) took 2220.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:25,097 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. [2019-11-26 03:02:25,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.80 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. [2019-11-26 03:02:25,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:02:25,098 INFO L168 Benchmark]: Boogie Preprocessor took 74.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:25,099 INFO L168 Benchmark]: RCFGBuilder took 839.49 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:25,099 INFO L168 Benchmark]: TraceAbstraction took 1021.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:02:25,099 INFO L168 Benchmark]: Witness Printer took 51.34 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. [2019-11-26 03:02:25,102 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 197.80 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 29.48 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 839.49 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1021.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Witness Printer took 51.34 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 [2019-11-26 03:02:25,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 03:02:25,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 4]: Loop Invariant [2019-11-26 03:02:25,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 03:02:25,110 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 03:02:25,110 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: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 0.2s 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...