./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/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 ca3708fe76c0d5fcf2081cc4044485827bf478fe ..................................................................................................................................................................................................................................... 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_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/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 ca3708fe76c0d5fcf2081cc4044485827bf478fe ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:27:09,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:27:09,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:27:09,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:27:09,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:27:09,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:27:09,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:27:09,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:27:09,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:27:09,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:27:09,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:27:09,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:27:09,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:27:09,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:27:09,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:27:09,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:27:09,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:27:09,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:27:09,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:27:09,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:27:09,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:27:09,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:27:09,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:27:09,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:27:09,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:27:09,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:27:09,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:27:09,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:27:09,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:27:09,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:27:09,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:27:09,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:27:09,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:27:09,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:27:09,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:27:09,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:27:09,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:27:09,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:27:09,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:27:09,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:27:09,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:27:09,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:27:09,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:27:09,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:27:09,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:27:09,889 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:27:09,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:27:09,889 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:27:09,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:27:09,889 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:27:09,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:27:09,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:27:09,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:27:09,890 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:27:09,890 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:27:09,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:27:09,890 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:27:09,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:27:09,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:27:09,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:27:09,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:27:09,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:27:09,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:27:09,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:27:09,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:27:09,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:27:09,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:27:09,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:27:09,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:27:09,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:27:09,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:27:09,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:27:09,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:27:09,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:27:09,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:27:09,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:27:09,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:27:09,893 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:27:09,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:27:09,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:27:09,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:27:09,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:27:09,894 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_165b8634-d2a9-4e5a-b034-4429fdd60946/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 -> ca3708fe76c0d5fcf2081cc4044485827bf478fe [2019-12-07 12:27:09,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:27:10,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:27:10,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:27:10,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:27:10,011 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:27:10,011 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:27:10,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/72833f462/64f57e9368c54fe8873d9eef83c102be/FLAG74f6ab046 [2019-12-07 12:27:10,370 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:27:10,370 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:27:10,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/72833f462/64f57e9368c54fe8873d9eef83c102be/FLAG74f6ab046 [2019-12-07 12:27:10,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/72833f462/64f57e9368c54fe8873d9eef83c102be [2019-12-07 12:27:10,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:27:10,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:27:10,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:27:10,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:27:10,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:27:10,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b19647e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10, skipping insertion in model container [2019-12-07 12:27:10,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:27:10,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:27:10,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:27:10,500 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:27:10,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:27:10,549 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:27:10,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10 WrapperNode [2019-12-07 12:27:10,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:27:10,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:27:10,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:27:10,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:27:10,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:27:10,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:27:10,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:27:10,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:27:10,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... [2019-12-07 12:27:10,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:27:10,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:27:10,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:27:10,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:27:10,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/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 [2019-12-07 12:27:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:27:10,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:27:10,697 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:27:10,698 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 12:27:10,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:27:10 BoogieIcfgContainer [2019-12-07 12:27:10,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:27:10,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:27:10,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:27:10,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:27:10,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:27:10" (1/3) ... [2019-12-07 12:27:10,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2fb463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:27:10, skipping insertion in model container [2019-12-07 12:27:10,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:10" (2/3) ... [2019-12-07 12:27:10,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2fb463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:27:10, skipping insertion in model container [2019-12-07 12:27:10,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:27:10" (3/3) ... [2019-12-07 12:27:10,703 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-12-07 12:27:10,709 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:27:10,712 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:27:10,720 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:27:10,735 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:27:10,735 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:27:10,735 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:27:10,735 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:27:10,735 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:27:10,736 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:27:10,736 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:27:10,736 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:27:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-12-07 12:27:10,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 12:27:10,749 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:27:10,750 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 12:27:10,750 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:27:10,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:27:10,754 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-12-07 12:27:10,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:27:10,760 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212456799] [2019-12-07 12:27:10,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:27:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:27:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:27:10,825 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 12:27:10,826 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:27:10,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:27:10 BoogieIcfgContainer [2019-12-07 12:27:10,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:27:10,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:27:10,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:27:10,837 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:27:10,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:27:10" (3/4) ... [2019-12-07 12:27:10,839 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:27:10,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:27:10,841 INFO L168 Benchmark]: Toolchain (without parser) took 454.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:10,842 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:10,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:10,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:10,843 INFO L168 Benchmark]: Boogie Preprocessor took 10.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:10,844 INFO L168 Benchmark]: RCFGBuilder took 117.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:10,845 INFO L168 Benchmark]: TraceAbstraction took 137.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:10,845 INFO L168 Benchmark]: Witness Printer took 2.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:10,848 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 117.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 137.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f [L12] COND TRUE f==x [L13] COND TRUE !(d==x) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, 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=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 12:27:12,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:27:12,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:27:12,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:27:12,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:27:12,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:27:12,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:27:12,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:27:12,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:27:12,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:27:12,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:27:12,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:27:12,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:27:12,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:27:12,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:27:12,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:27:12,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:27:12,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:27:12,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:27:12,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:27:12,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:27:12,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:27:12,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:27:12,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:27:12,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:27:12,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:27:12,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:27:12,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:27:12,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:27:12,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:27:12,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:27:12,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:27:12,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:27:12,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:27:12,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:27:12,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:27:12,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:27:12,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:27:12,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:27:12,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:27:12,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:27:12,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:27:12,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:27:12,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:27:12,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:27:12,247 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:27:12,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:27:12,248 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:27:12,248 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:27:12,248 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:27:12,248 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:27:12,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:27:12,249 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:27:12,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:27:12,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:27:12,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:27:12,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:27:12,250 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:27:12,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:27:12,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:27:12,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:27:12,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:27:12,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:27:12,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:27:12,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:27:12,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:27:12,252 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_165b8634-d2a9-4e5a-b034-4429fdd60946/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 -> ca3708fe76c0d5fcf2081cc4044485827bf478fe [2019-12-07 12:27:12,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:27:12,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:27:12,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:27:12,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:27:12,434 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:27:12,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:27:12,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/4ae4bc5a6/ba234da452f741f4afa1b026c40365b8/FLAGb245e7833 [2019-12-07 12:27:12,867 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:27:12,868 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-12-07 12:27:12,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/4ae4bc5a6/ba234da452f741f4afa1b026c40365b8/FLAGb245e7833 [2019-12-07 12:27:12,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/data/4ae4bc5a6/ba234da452f741f4afa1b026c40365b8 [2019-12-07 12:27:12,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:27:12,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:27:12,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:27:12,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:27:12,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:27:12,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:27:12" (1/1) ... [2019-12-07 12:27:12,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182038b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:12, skipping insertion in model container [2019-12-07 12:27:12,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:27:12" (1/1) ... [2019-12-07 12:27:12,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:27:12,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:27:12,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:27:13,000 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:27:13,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:27:13,019 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:27:13,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13 WrapperNode [2019-12-07 12:27:13,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:27:13,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:27:13,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:27:13,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:27:13,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:27:13,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:27:13,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:27:13,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:27:13,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... [2019-12-07 12:27:13,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:27:13,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:27:13,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:27:13,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:27:13,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/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 [2019-12-07 12:27:13,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:27:13,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:27:13,268 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:27:13,269 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 12:27:13,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:27:13 BoogieIcfgContainer [2019-12-07 12:27:13,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:27:13,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:27:13,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:27:13,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:27:13,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:27:12" (1/3) ... [2019-12-07 12:27:13,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307ff12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:27:13, skipping insertion in model container [2019-12-07 12:27:13,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:27:13" (2/3) ... [2019-12-07 12:27:13,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307ff12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:27:13, skipping insertion in model container [2019-12-07 12:27:13,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:27:13" (3/3) ... [2019-12-07 12:27:13,274 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-12-07 12:27:13,281 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:27:13,285 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:27:13,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:27:13,308 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:27:13,308 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:27:13,308 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:27:13,308 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:27:13,309 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:27:13,309 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:27:13,309 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:27:13,309 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:27:13,318 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 12:27:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 12:27:13,322 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:27:13,323 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 12:27:13,323 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:27:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:27:13,326 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2019-12-07 12:27:13,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:27:13,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062565045] [2019-12-07 12:27:13,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/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 [2019-12-07 12:27:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:27:13,377 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 12:27:13,380 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:27:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:27:14,035 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:27:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:27:15,418 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062565045] [2019-12-07 12:27:15,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:27:15,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 12:27:15,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949542105] [2019-12-07 12:27:15,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:27:15,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:27:15,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:27:15,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:27:15,432 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2019-12-07 12:27:17,503 WARN L192 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-12-07 12:27:17,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:27:17,692 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-12-07 12:27:17,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:27:17,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2019-12-07 12:27:17,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:27:17,704 INFO L225 Difference]: With dead ends: 15 [2019-12-07 12:27:17,705 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:27:17,707 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:27:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:27:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:27:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:27:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:27:17,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 12:27:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:27:17,728 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:27:17,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:27:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:27:17,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:27:17,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:27:17,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:27:17,943 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:27:17,943 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:27:17,943 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:27:17,944 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:27:17,944 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-12-07 12:27:17,944 INFO L246 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2019-12-07 12:27:17,945 INFO L246 CegarLoopResult]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-12-07 12:27:17,945 INFO L246 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-12-07 12:27:17,945 INFO L246 CegarLoopResult]: For program point L4(lines 4 14) no Hoare annotation was computed. [2019-12-07 12:27:17,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:27:17 BoogieIcfgContainer [2019-12-07 12:27:17,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:27:17,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:27:17,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:27:17,958 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:27:17,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:27:13" (3/4) ... [2019-12-07 12:27:17,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:27:17,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:27:17,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 12:27:17,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:27:18,002 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_165b8634-d2a9-4e5a-b034-4429fdd60946/bin/utaipan/witness.graphml [2019-12-07 12:27:18,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:27:18,003 INFO L168 Benchmark]: Toolchain (without parser) took 5119.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -113.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:18,003 INFO L168 Benchmark]: CDTParser took 0.13 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. [2019-12-07 12:27:18,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.11 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:18,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.24 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:27:18,004 INFO L168 Benchmark]: Boogie Preprocessor took 42.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:18,005 INFO L168 Benchmark]: RCFGBuilder took 185.47 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: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:18,005 INFO L168 Benchmark]: TraceAbstraction took 4686.17 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: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:27:18,005 INFO L168 Benchmark]: Witness Printer took 44.80 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. [2019-12-07 12:27:18,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 136.11 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 21.24 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -177.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.47 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: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4686.17 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: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. * Witness Printer took 44.80 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: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 156 SizeOfPredicates, 6 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 3 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...