./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 e03384737e8763104139cfd338bec2bd1e3e90b2 .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 e03384737e8763104139cfd338bec2bd1e3e90b2 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:53,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:53,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:53,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:53,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:53,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:53,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:53,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:53,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:53,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:53,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:53,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:53,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:53,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:53,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:53,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:53,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:53,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:53,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:53,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:53,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:53,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:53,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:53,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:53,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:53,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:53,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:53,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:53,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:53,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:53,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:53,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:53,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:53,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:53,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:53,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:53,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:53,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:53,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:53,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:53,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:53,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:53,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:53,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:53,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:53,704 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:53,704 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:53,704 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:53,705 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:53,705 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:53,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:53,705 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:53,705 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:53,705 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:53,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:53,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:53,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:53,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:53,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:53,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:53,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:53,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:53,707 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:53,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:53,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:53,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:53,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:53,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:53,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:53,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:53,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:53,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:53,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:53,709 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:53,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:53,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:53,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:53,710 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/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2019-10-22 11:22:53,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:53,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:53,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:53,762 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:53,763 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:53,763 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 11:22:53,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/310227d3e/d99d193416d74f5a9a140bf57d9922d1/FLAG5a1bd5637 [2019-10-22 11:22:54,170 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:54,171 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 11:22:54,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/310227d3e/d99d193416d74f5a9a140bf57d9922d1/FLAG5a1bd5637 [2019-10-22 11:22:54,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/310227d3e/d99d193416d74f5a9a140bf57d9922d1 [2019-10-22 11:22:54,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:54,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:54,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:54,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:54,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:54,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4dd4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54, skipping insertion in model container [2019-10-22 11:22:54,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,628 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:54,642 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:54,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:54,774 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:54,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:54,857 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:54,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54 WrapperNode [2019-10-22 11:22:54,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:54,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:54,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:54,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:54,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:54,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:54,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:54,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:54,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... [2019-10-22 11:22:54,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:54,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:54,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:54,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:54,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 [2019-10-22 11:22:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:55,094 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:55,094 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:22:55,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:55 BoogieIcfgContainer [2019-10-22 11:22:55,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:55,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:55,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:55,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:54" (1/3) ... [2019-10-22 11:22:55,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163c7a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:55, skipping insertion in model container [2019-10-22 11:22:55,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:54" (2/3) ... [2019-10-22 11:22:55,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163c7a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:55, skipping insertion in model container [2019-10-22 11:22:55,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:55" (3/3) ... [2019-10-22 11:22:55,104 INFO L109 eAbstractionObserver]: Analyzing ICFG float5.c [2019-10-22 11:22:55,113 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:55,120 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:55,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:55,151 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:55,151 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:55,151 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:55,151 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:55,151 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:55,151 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:55,152 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:55,152 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:55,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 11:22:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:22:55,170 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:55,171 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:22:55,173 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:55,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:55,178 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 11:22:55,188 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:55,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855466913] [2019-10-22 11:22:55,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:55,189 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:55,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:55,306 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:55,307 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:55,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:55 BoogieIcfgContainer [2019-10-22 11:22:55,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:55,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:55,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:55,319 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:55,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:55" (3/4) ... [2019-10-22 11:22:55,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:22:55,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:55,324 INFO L168 Benchmark]: Toolchain (without parser) took 711.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:55,325 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:55,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:55,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.77 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. [2019-10-22 11:22:55,326 INFO L168 Benchmark]: Boogie Preprocessor took 16.85 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. [2019-10-22 11:22:55,327 INFO L168 Benchmark]: RCFGBuilder took 192.01 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. [2019-10-22 11:22:55,328 INFO L168 Benchmark]: TraceAbstraction took 221.48 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. [2019-10-22 11:22:55,328 INFO L168 Benchmark]: Witness Printer took 4.01 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. [2019-10-22 11:22:55,331 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.77 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 16.85 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 192.01 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 221.48 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 4.01 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: 12]: 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 8, overapproximation of someBinaryArithmeticFLOAToperation at line 10. Possible FailurePath: [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L9] b=a [L10] a/=2 [L11] a*=2 [L12] COND TRUE !(a==b) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=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, 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-cad4683 [2019-10-22 11:22:57,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:57,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:57,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:57,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:57,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:57,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:57,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:57,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:57,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:57,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:57,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:57,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:57,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:57,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:57,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:57,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:57,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:57,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:57,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:57,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:57,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:57,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:57,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:57,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:57,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:57,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:57,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:57,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:57,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:57,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:57,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:57,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:57,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:57,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:57,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:57,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:57,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:57,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:57,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:57,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:57,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:57,328 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:57,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:57,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:57,329 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:57,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:57,329 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:57,329 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:57,329 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:57,330 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:57,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:57,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:57,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:57,332 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:57,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:57,332 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:57,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:57,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:57,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:57,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:57,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:57,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:57,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:57,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:57,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:57,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:57,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:57,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:57,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:57,334 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2019-10-22 11:22:57,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:57,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:57,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:57,376 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:57,376 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:57,377 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 11:22:57,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/ffb7e8ccf/f47e7f0977554a4dbafcea0989bd3799/FLAG877815a5f [2019-10-22 11:22:57,819 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:57,819 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/sv-benchmarks/c/floats-cbmc-regression/float5.c [2019-10-22 11:22:57,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/ffb7e8ccf/f47e7f0977554a4dbafcea0989bd3799/FLAG877815a5f [2019-10-22 11:22:57,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/data/ffb7e8ccf/f47e7f0977554a4dbafcea0989bd3799 [2019-10-22 11:22:57,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:57,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:57,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:57,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:57,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:57,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:57" (1/1) ... [2019-10-22 11:22:57,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148e076e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:57, skipping insertion in model container [2019-10-22 11:22:57,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:57" (1/1) ... [2019-10-22 11:22:57,854 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:57,867 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:58,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:58,017 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:58,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:58,044 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:58,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58 WrapperNode [2019-10-22 11:22:58,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:58,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:58,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:58,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:58,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:58,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:58,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:58,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:58,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... [2019-10-22 11:22:58,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:58,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:58,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:58,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:58,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 [2019-10-22 11:22:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:58,713 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:58,714 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:22:58,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:58 BoogieIcfgContainer [2019-10-22 11:22:58,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:58,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:58,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:58,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:58,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:57" (1/3) ... [2019-10-22 11:22:58,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b9dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:58, skipping insertion in model container [2019-10-22 11:22:58,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:58" (2/3) ... [2019-10-22 11:22:58,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b9dbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:58, skipping insertion in model container [2019-10-22 11:22:58,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:58" (3/3) ... [2019-10-22 11:22:58,721 INFO L109 eAbstractionObserver]: Analyzing ICFG float5.c [2019-10-22 11:22:58,729 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:58,736 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:58,746 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:58,767 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:58,767 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:58,767 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:58,767 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:58,767 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:58,767 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:58,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:58,768 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 11:22:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:22:58,783 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:58,784 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:22:58,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:58,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:58,790 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 11:22:58,796 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:58,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169030294] [2019-10-22 11:22:58,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/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 [2019-10-22 11:22:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:58,878 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:22:58,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:23:04,037 WARN L191 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2019-10-22 11:23:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:04,599 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:23:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:04,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169030294] [2019-10-22 11:23:04,994 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:04,995 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:23:04,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930998416] [2019-10-22 11:23:04,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:23:04,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:23:05,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:23:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:05,014 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-10-22 11:23:05,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:05,793 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-10-22 11:23:05,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:23:05,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 11:23:05,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:05,812 INFO L225 Difference]: With dead ends: 10 [2019-10-22 11:23:05,812 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:23:05,815 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:23:05,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:23:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:23:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:23:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:23:05,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 11:23:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:05,847 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:23:05,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:23:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:23:05,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:23:06,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:23:06,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-22 11:23:06,061 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 13) no Hoare annotation was computed. [2019-10-22 11:23:06,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:06 BoogieIcfgContainer [2019-10-22 11:23:06,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:06,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:06,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:06,064 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:06,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:58" (3/4) ... [2019-10-22 11:23:06,067 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:23:06,076 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:23:06,076 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:23:06,105 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a4aeab10-a523-4fbc-9b8d-b0b059f4c348/bin/utaipan/witness.graphml [2019-10-22 11:23:06,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:06,107 INFO L168 Benchmark]: Toolchain (without parser) took 8267.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -110.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,108 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:06,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.05 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,109 INFO L168 Benchmark]: Boogie Preprocessor took 18.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,109 INFO L168 Benchmark]: RCFGBuilder took 563.89 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,110 INFO L168 Benchmark]: TraceAbstraction took 7347.87 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,111 INFO L168 Benchmark]: Witness Printer took 41.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:06,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.05 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 563.89 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7347.87 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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, 7 locations, 1 error locations. Result: SAFE, OverallTime: 7.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s Time, 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: 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, 6.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 2 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...