./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/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 af383046837f49b57572febe7198ecca5fffa750 ........................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/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 af383046837f49b57572febe7198ecca5fffa750 ................................................................................................................................................................................................................................................................................................................... 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 13:47:10,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:47:10,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:47:10,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:47:10,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:47:10,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:47:10,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:47:10,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:47:10,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:47:10,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:47:10,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:47:10,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:47:10,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:47:10,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:47:10,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:47:10,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:47:10,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:47:10,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:47:10,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:47:10,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:47:10,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:47:10,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:47:10,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:47:10,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:47:10,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:47:10,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:47:10,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:47:10,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:47:10,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:47:10,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:47:10,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:47:10,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:47:10,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:47:10,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:47:10,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:47:10,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:47:10,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:47:10,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:47:10,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:47:10,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:47:10,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:47:10,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:47:10,837 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:47:10,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:47:10,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:47:10,838 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:47:10,838 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:47:10,838 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:47:10,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:47:10,839 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:47:10,839 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:47:10,839 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:47:10,839 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:47:10,839 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:47:10,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:47:10,840 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:47:10,840 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:47:10,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:47:10,841 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:47:10,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:47:10,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:47:10,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:47:10,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:47:10,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:47:10,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:47:10,842 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:47:10,842 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:47:10,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:47:10,843 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:47:10,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:47:10,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:47:10,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:47:10,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:47:10,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:47:10,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:47:10,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:47:10,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:47:10,844 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:47:10,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:47:10,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:47:10,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:47:10,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:47:10,845 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_b0971066-965d-40ad-bdf7-bfb8651b0268/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 -> af383046837f49b57572febe7198ecca5fffa750 [2019-12-07 13:47:10,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:47:10,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:47:10,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:47:10,960 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:47:10,960 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:47:10,961 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 13:47:10,997 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/5392d82e6/8f9856306e414f729e4038467a90ea56/FLAGe8301c850 [2019-12-07 13:47:11,402 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:47:11,402 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 13:47:11,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/5392d82e6/8f9856306e414f729e4038467a90ea56/FLAGe8301c850 [2019-12-07 13:47:11,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/5392d82e6/8f9856306e414f729e4038467a90ea56 [2019-12-07 13:47:11,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:47:11,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:47:11,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:47:11,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:47:11,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:47:11,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fd35d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11, skipping insertion in model container [2019-12-07 13:47:11,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:47:11,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:47:11,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:47:11,576 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:47:11,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:47:11,602 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:47:11,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11 WrapperNode [2019-12-07 13:47:11,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:47:11,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:47:11,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:47:11,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:47:11,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:47:11,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:47:11,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:47:11,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:47:11,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... [2019-12-07 13:47:11,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:47:11,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:47:11,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:47:11,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:47:11,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/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 13:47:11,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 13:47:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:47:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:47:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:47:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:47:11,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:47:11,806 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:47:11,806 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 13:47:11,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:11 BoogieIcfgContainer [2019-12-07 13:47:11,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:47:11,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:47:11,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:47:11,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:47:11,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:47:11" (1/3) ... [2019-12-07 13:47:11,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47339a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:47:11, skipping insertion in model container [2019-12-07 13:47:11,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:11" (2/3) ... [2019-12-07 13:47:11,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47339a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:47:11, skipping insertion in model container [2019-12-07 13:47:11,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:11" (3/3) ... [2019-12-07 13:47:11,811 INFO L109 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2019-12-07 13:47:11,818 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:47:11,821 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:47:11,829 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:47:11,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:47:11,843 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:47:11,843 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:47:11,843 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:47:11,843 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:47:11,843 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:47:11,843 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:47:11,843 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:47:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 13:47:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 13:47:11,855 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:47:11,855 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 13:47:11,856 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:47:11,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:47:11,860 INFO L82 PathProgramCache]: Analyzing trace with hash 46289, now seen corresponding path program 1 times [2019-12-07 13:47:11,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 13:47:11,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038001510] [2019-12-07 13:47:11,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:47:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:47:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:47:11,954 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 13:47:11,954 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:47:11,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:47:11 BoogieIcfgContainer [2019-12-07 13:47:11,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:47:11,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:47:11,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:47:11,968 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:47:11,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:11" (3/4) ... [2019-12-07 13:47:11,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:47:11,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:47:11,972 INFO L168 Benchmark]: Toolchain (without parser) took 553.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:47:11,973 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:47:11,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:11,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.86 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 13:47:11,974 INFO L168 Benchmark]: Boogie Preprocessor took 13.21 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:11,974 INFO L168 Benchmark]: RCFGBuilder took 168.26 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 13:47:11,975 INFO L168 Benchmark]: TraceAbstraction took 160.35 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:11,975 INFO L168 Benchmark]: Witness Printer took 2.92 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 13:47:11,977 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.86 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 13.21 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 168.26 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 160.35 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someUnaryDOUBLEoperation at line 111. Possible FailurePath: [L100] float sum = a + b; [L101] union mix m; [L102] m.f = sum [L103] EXPR m.i [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 13:47:13,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:47:13,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:47:13,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:47:13,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:47:13,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:47:13,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:47:13,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:47:13,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:47:13,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:47:13,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:47:13,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:47:13,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:47:13,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:47:13,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:47:13,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:47:13,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:47:13,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:47:13,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:47:13,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:47:13,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:47:13,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:47:13,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:47:13,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:47:13,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:47:13,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:47:13,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:47:13,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:47:13,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:47:13,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:47:13,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:47:13,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:47:13,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:47:13,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:47:13,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:47:13,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:47:13,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:47:13,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:47:13,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:47:13,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:47:13,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:47:13,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:47:13,362 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:47:13,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:47:13,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:47:13,363 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:47:13,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:47:13,363 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:47:13,363 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:47:13,363 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:47:13,363 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:47:13,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:47:13,364 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:47:13,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:47:13,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:47:13,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:47:13,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:47:13,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:47:13,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:47:13,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:47:13,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:47:13,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:47:13,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:47:13,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:47:13,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:47:13,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:47:13,367 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:47:13,367 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:47:13,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:47:13,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:47:13,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:47:13,367 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_b0971066-965d-40ad-bdf7-bfb8651b0268/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 -> af383046837f49b57572febe7198ecca5fffa750 [2019-12-07 13:47:13,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:47:13,554 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:47:13,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:47:13,558 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:47:13,558 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:47:13,559 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 13:47:13,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/825facb7e/6218680741eb498db7a2ec4206309d11/FLAG0362d4921 [2019-12-07 13:47:13,990 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:47:13,990 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2019-12-07 13:47:13,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/825facb7e/6218680741eb498db7a2ec4206309d11/FLAG0362d4921 [2019-12-07 13:47:14,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/data/825facb7e/6218680741eb498db7a2ec4206309d11 [2019-12-07 13:47:14,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:47:14,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:47:14,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:47:14,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:47:14,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:47:14,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8749e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14, skipping insertion in model container [2019-12-07 13:47:14,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:47:14,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:47:14,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:47:14,523 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:47:14,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:47:14,553 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:47:14,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14 WrapperNode [2019-12-07 13:47:14,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:47:14,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:47:14,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:47:14,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:47:14,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:47:14,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:47:14,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:47:14,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:47:14,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... [2019-12-07 13:47:14,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:47:14,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:47:14,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:47:14,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:47:14,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/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 13:47:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:47:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:47:14,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:47:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 13:47:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:47:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:47:14,799 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:47:14,800 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 13:47:14,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:14 BoogieIcfgContainer [2019-12-07 13:47:14,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:47:14,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:47:14,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:47:14,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:47:14,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:47:14" (1/3) ... [2019-12-07 13:47:14,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416306b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:47:14, skipping insertion in model container [2019-12-07 13:47:14,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:14" (2/3) ... [2019-12-07 13:47:14,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416306b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:47:14, skipping insertion in model container [2019-12-07 13:47:14,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:14" (3/3) ... [2019-12-07 13:47:14,805 INFO L109 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2019-12-07 13:47:14,812 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:47:14,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:47:14,824 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:47:14,838 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:47:14,838 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:47:14,838 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:47:14,839 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:47:14,839 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:47:14,839 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:47:14,839 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:47:14,839 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:47:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 13:47:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 13:47:14,851 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:47:14,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 13:47:14,852 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:47:14,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:47:14,855 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 13:47:14,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:47:14,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538746645] [2019-12-07 13:47:14,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/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 13:47:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:47:14,938 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 13:47:14,942 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:47:14,988 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 13:47:14,988 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:47:15,030 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 13:47:15,030 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538746645] [2019-12-07 13:47:15,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:47:15,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 13:47:15,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117371602] [2019-12-07 13:47:15,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:47:15,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:47:15,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:47:15,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:47:15,045 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2019-12-07 13:47:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:47:15,088 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-12-07 13:47:15,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:47:15,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 13:47:15,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:47:15,094 INFO L225 Difference]: With dead ends: 15 [2019-12-07 13:47:15,094 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:47:15,096 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:47:15,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:47:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:47:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:47:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:47:15,113 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 13:47:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:47:15,113 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:47:15,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:47:15,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:47:15,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:47:15,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:47:15,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:47:15,375 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:47:15,375 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 13:47:15,376 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:47:15,376 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 13:47:15,376 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2019-12-07 13:47:15,376 INFO L242 CegarLoopResult]: At program point L112(lines 108 113) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2019-12-07 13:47:15,376 INFO L242 CegarLoopResult]: At program point L105(lines 99 106) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2019-12-07 13:47:15,376 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 13:47:15,376 INFO L246 CegarLoopResult]: For program point L103-1(line 103) no Hoare annotation was computed. [2019-12-07 13:47:15,376 INFO L246 CegarLoopResult]: For program point L103-3(line 103) no Hoare annotation was computed. [2019-12-07 13:47:15,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:47:15,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:47:15,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:47:15,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:47:15,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:47:15 BoogieIcfgContainer [2019-12-07 13:47:15,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:47:15,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:47:15,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:47:15,388 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:47:15,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:14" (3/4) ... [2019-12-07 13:47:15,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:47:15,396 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 13:47:15,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 13:47:15,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:47:15,422 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0971066-965d-40ad-bdf7-bfb8651b0268/bin/utaipan/witness.graphml [2019-12-07 13:47:15,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:47:15,424 INFO L168 Benchmark]: Toolchain (without parser) took 1045.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -97.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:15,424 INFO L168 Benchmark]: CDTParser took 0.17 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 13:47:15,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.33 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 13:47:15,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:15,426 INFO L168 Benchmark]: Boogie Preprocessor took 18.30 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:15,426 INFO L168 Benchmark]: RCFGBuilder took 174.84 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:15,426 INFO L168 Benchmark]: TraceAbstraction took 586.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:47:15,427 INFO L168 Benchmark]: Witness Printer took 35.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:47:15,429 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 175.33 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 52.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.30 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 174.84 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 586.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * Witness Printer took 35.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 108]: Loop Invariant [2019-12-07 13:47:15,433 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:47:15,433 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 99]: Loop Invariant [2019-12-07 13:47:15,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 13:47:15,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 13:47:15,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 10 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...