./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 0a264ac1dee459017a9965df88403c901cb7750b .................................................................................................................................................................................................................................... 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_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 0a264ac1dee459017a9965df88403c901cb7750b .............................................................................................................................................................................................................................................................................................................. 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 14:43:20,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:43:20,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:43:20,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:43:20,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:43:20,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:43:20,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:43:20,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:43:20,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:43:20,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:43:20,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:43:20,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:43:20,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:43:20,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:43:20,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:43:20,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:43:20,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:43:20,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:43:20,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:43:20,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:43:20,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:43:20,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:43:20,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:43:20,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:43:20,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:43:20,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:43:20,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:43:20,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:43:20,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:43:20,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:43:20,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:43:20,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:43:20,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:43:20,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:43:20,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:43:20,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:43:20,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:43:20,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:43:20,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:43:20,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:43:20,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:43:20,924 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:43:20,935 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:43:20,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:43:20,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:43:20,935 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:43:20,936 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:43:20,936 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:43:20,937 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:43:20,937 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:43:20,937 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:43:20,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:43:20,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:43:20,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:43:20,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:43:20,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:43:20,939 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:43:20,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:43:20,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:43:20,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:43:20,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:43:20,940 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_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2019-12-07 14:43:21,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:43:21,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:43:21,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:43:21,053 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:43:21,054 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:43:21,054 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2019-12-07 14:43:21,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/128e27c1b/d37b99a4c3664969a19ca32baf06d315/FLAG237d71887 [2019-12-07 14:43:21,509 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:43:21,510 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/sv-benchmarks/c/float-benchs/inv_square_int.c [2019-12-07 14:43:21,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/128e27c1b/d37b99a4c3664969a19ca32baf06d315/FLAG237d71887 [2019-12-07 14:43:21,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/128e27c1b/d37b99a4c3664969a19ca32baf06d315 [2019-12-07 14:43:21,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:43:21,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:43:21,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:43:21,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:43:21,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:43:21,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374ca533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21, skipping insertion in model container [2019-12-07 14:43:21,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:43:21,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:43:21,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:43:21,645 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:43:21,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:43:21,700 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:43:21,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21 WrapperNode [2019-12-07 14:43:21,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:43:21,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:43:21,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:43:21,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:43:21,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:43:21,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:43:21,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:43:21,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:43:21,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... [2019-12-07 14:43:21,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:43:21,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:43:21,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:43:21,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:43:21,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 14:43:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:43:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:43:21,872 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:43:21,872 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 14:43:21,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:43:21 BoogieIcfgContainer [2019-12-07 14:43:21,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:43:21,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:43:21,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:43:21,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:43:21,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:43:21" (1/3) ... [2019-12-07 14:43:21,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f552e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:43:21, skipping insertion in model container [2019-12-07 14:43:21,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:21" (2/3) ... [2019-12-07 14:43:21,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f552e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:43:21, skipping insertion in model container [2019-12-07 14:43:21,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:43:21" (3/3) ... [2019-12-07 14:43:21,877 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-12-07 14:43:21,883 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:43:21,887 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:43:21,894 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:43:21,908 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:43:21,908 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:43:21,908 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:43:21,908 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:43:21,908 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:43:21,908 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:43:21,908 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:43:21,908 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:43:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 14:43:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 14:43:21,920 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:43:21,920 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 14:43:21,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:43:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:43:21,924 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-12-07 14:43:21,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:43:21,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98134273] [2019-12-07 14:43:21,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:43:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:43:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:43:22,007 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 14:43:22,007 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:43:22,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:43:22 BoogieIcfgContainer [2019-12-07 14:43:22,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:43:22,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:43:22,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:43:22,018 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:43:22,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:43:21" (3/4) ... [2019-12-07 14:43:22,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:43:22,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:43:22,023 INFO L168 Benchmark]: Toolchain (without parser) took 497.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -124.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:43:22,023 INFO L168 Benchmark]: CDTParser took 0.17 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 14:43:22,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:22,024 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.13 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 14:43:22,024 INFO L168 Benchmark]: Boogie Preprocessor took 12.20 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 14:43:22,025 INFO L168 Benchmark]: RCFGBuilder took 138.13 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:22,025 INFO L168 Benchmark]: TraceAbstraction took 144.27 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 14:43:22,025 INFO L168 Benchmark]: Witness Printer took 3.06 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 14:43:22,028 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.13 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 12.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 138.13 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144.27 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 3.06 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] int x; [L13] float y, z; [L15] x = __VERIFIER_nondet_int() [L18] y = x*x - 2.f [L8] COND TRUE !(cond) [L8] __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 14:43:23,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:43:23,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:43:23,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:43:23,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:43:23,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:43:23,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:43:23,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:43:23,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:43:23,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:43:23,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:43:23,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:43:23,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:43:23,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:43:23,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:43:23,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:43:23,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:43:23,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:43:23,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:43:23,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:43:23,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:43:23,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:43:23,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:43:23,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:43:23,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:43:23,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:43:23,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:43:23,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:43:23,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:43:23,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:43:23,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:43:23,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:43:23,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:43:23,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:43:23,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:43:23,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:43:23,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:43:23,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:43:23,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:43:23,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:43:23,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:43:23,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:43:23,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:43:23,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:43:23,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:43:23,412 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:43:23,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:43:23,412 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:43:23,412 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:43:23,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:43:23,413 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:43:23,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:43:23,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:43:23,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:43:23,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:43:23,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:43:23,415 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:43:23,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:43:23,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:43:23,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:43:23,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:43:23,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:43:23,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:43:23,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:43:23,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:43:23,417 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_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2019-12-07 14:43:23,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:43:23,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:43:23,597 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:43:23,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:43:23,598 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:43:23,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2019-12-07 14:43:23,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/3fa7641cc/c3127a5a94f64bdebc21fcd0d7238add/FLAG6f73418aa [2019-12-07 14:43:24,116 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:43:24,116 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/sv-benchmarks/c/float-benchs/inv_square_int.c [2019-12-07 14:43:24,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/3fa7641cc/c3127a5a94f64bdebc21fcd0d7238add/FLAG6f73418aa [2019-12-07 14:43:24,621 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/data/3fa7641cc/c3127a5a94f64bdebc21fcd0d7238add [2019-12-07 14:43:24,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:43:24,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:43:24,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:43:24,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:43:24,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:43:24,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be62654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24, skipping insertion in model container [2019-12-07 14:43:24,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:43:24,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:43:24,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:43:24,749 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:43:24,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:43:24,769 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:43:24,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24 WrapperNode [2019-12-07 14:43:24,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:43:24,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:43:24,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:43:24,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:43:24,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:43:24,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:43:24,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:43:24,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:43:24,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... [2019-12-07 14:43:24,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:43:24,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:43:24,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:43:24,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:43:24,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 14:43:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:43:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:43:25,560 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:43:25,561 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 14:43:25,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:43:25 BoogieIcfgContainer [2019-12-07 14:43:25,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:43:25,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:43:25,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:43:25,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:43:25,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:43:24" (1/3) ... [2019-12-07 14:43:25,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1257b29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:43:25, skipping insertion in model container [2019-12-07 14:43:25,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:43:24" (2/3) ... [2019-12-07 14:43:25,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1257b29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:43:25, skipping insertion in model container [2019-12-07 14:43:25,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:43:25" (3/3) ... [2019-12-07 14:43:25,568 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-12-07 14:43:25,577 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:43:25,582 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:43:25,590 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:43:25,605 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:43:25,605 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:43:25,605 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:43:25,605 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:43:25,605 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:43:25,605 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:43:25,605 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:43:25,605 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:43:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 14:43:25,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 14:43:25,617 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:43:25,618 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 14:43:25,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:43:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:43:25,622 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-12-07 14:43:25,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:43:25,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343585591] [2019-12-07 14:43:25,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/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 14:43:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:43:25,716 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:43:25,719 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:43:27,043 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 14:43:27,043 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:43:29,459 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 14:43:29,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343585591] [2019-12-07 14:43:29,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:43:29,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 14:43:29,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006205623] [2019-12-07 14:43:29,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:43:29,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:43:29,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:43:29,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:43:29,475 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2019-12-07 14:43:30,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:43:30,289 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-12-07 14:43:30,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:43:30,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-12-07 14:43:30,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:43:30,341 INFO L225 Difference]: With dead ends: 13 [2019-12-07 14:43:30,341 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:43:30,344 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:43:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:43:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:43:30,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:43:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:43:30,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 14:43:30,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:43:30,365 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:43:30,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:43:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:43:30,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:43:30,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:43:30,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:43:30,642 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:43:30,642 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 14:43:30,643 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:43:30,643 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:43:30,643 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-12-07 14:43:30,643 INFO L242 CegarLoopResult]: At program point L21(lines 10 22) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 14:43:30,643 INFO L246 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2019-12-07 14:43:30,644 INFO L246 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-12-07 14:43:30,644 INFO L242 CegarLoopResult]: At program point L8-3(line 8) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 14:43:30,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 14:43:30,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 14:43:30,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 14:43:30,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 14:43:30,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:43:30 BoogieIcfgContainer [2019-12-07 14:43:30,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:43:30,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:43:30,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:43:30,658 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:43:30,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:43:25" (3/4) ... [2019-12-07 14:43:30,661 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:43:30,668 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 14:43:30,669 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:43:30,669 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 14:43:30,696 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0d0080a0-f386-4dd9-8ae6-a5a7961c9283/bin/utaipan/witness.graphml [2019-12-07 14:43:30,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:43:30,698 INFO L168 Benchmark]: Toolchain (without parser) took 6072.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -107.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:30,698 INFO L168 Benchmark]: CDTParser took 0.21 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 14:43:30,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.25 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:30,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:30,699 INFO L168 Benchmark]: Boogie Preprocessor took 14.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:43:30,700 INFO L168 Benchmark]: RCFGBuilder took 725.92 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:30,701 INFO L168 Benchmark]: TraceAbstraction took 5095.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:30,701 INFO L168 Benchmark]: Witness Printer took 38.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:43:30,704 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 144.25 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.81 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 725.92 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5095.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Witness Printer took 38.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. 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: 8]: 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: 8]: Loop Invariant [2019-12-07 14:43:30,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 14:43:30,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 10]: Loop Invariant [2019-12-07 14:43:30,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 14:43:30,712 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 14:43:30,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 4.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 5 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 5 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...