./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.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_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 5fc76096080d06d307c9a613c10bbb5b03d622cd ..................................................................................................................................................................................................................................... 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_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 5fc76096080d06d307c9a613c10bbb5b03d622cd ........................................................................................................................................................................................................................................................................ 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 20:54:46,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:54:46,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:54:46,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:54:46,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:54:46,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:54:46,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:54:46,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:54:46,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:54:46,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:54:46,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:54:46,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:54:46,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:54:46,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:54:46,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:54:46,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:54:46,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:54:46,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:54:46,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:54:46,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:54:46,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:54:46,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:54:46,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:54:46,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:54:46,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:54:46,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:54:46,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:54:46,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:54:46,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:54:46,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:54:46,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:54:46,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:54:46,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:54:46,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:54:46,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:54:46,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:54:46,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:54:46,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:54:46,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:54:46,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:54:46,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:54:46,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:54:46,304 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:54:46,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:54:46,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:54:46,305 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:54:46,305 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:54:46,306 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:54:46,306 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:54:46,306 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:54:46,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:54:46,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:54:46,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:54:46,307 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:54:46,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:54:46,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:54:46,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:54:46,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:54:46,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:54:46,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:54:46,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:54:46,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:54:46,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:54:46,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:54:46,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:54:46,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:54:46,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:54:46,309 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_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2019-12-07 20:54:46,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:54:46,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:54:46,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:54:46,417 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:54:46,418 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:54:46,418 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 20:54:46,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/0ac409c49/7c79cac3ee864e199f6db1e666d2c4f7/FLAGf642aba85 [2019-12-07 20:54:46,770 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:54:46,770 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 20:54:46,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/0ac409c49/7c79cac3ee864e199f6db1e666d2c4f7/FLAGf642aba85 [2019-12-07 20:54:46,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/0ac409c49/7c79cac3ee864e199f6db1e666d2c4f7 [2019-12-07 20:54:46,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:54:46,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:54:46,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:54:46,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:54:46,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:54:46,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7f25b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46, skipping insertion in model container [2019-12-07 20:54:46,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:54:46,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:54:46,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:54:46,904 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:54:46,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:54:46,956 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:54:46,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46 WrapperNode [2019-12-07 20:54:46,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:54:46,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:54:46,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:54:46,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:54:46,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:54:46,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:54:46,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:54:46,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:54:46,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... [2019-12-07 20:54:46,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:54:46,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:54:46,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:54:46,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:54:46,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 20:54:47,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:54:47,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:54:47,119 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:54:47,119 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 20:54:47,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:54:47 BoogieIcfgContainer [2019-12-07 20:54:47,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:54:47,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:54:47,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:54:47,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:54:47,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:54:46" (1/3) ... [2019-12-07 20:54:47,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e83dacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:54:47, skipping insertion in model container [2019-12-07 20:54:47,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:46" (2/3) ... [2019-12-07 20:54:47,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e83dacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:54:47, skipping insertion in model container [2019-12-07 20:54:47,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:54:47" (3/3) ... [2019-12-07 20:54:47,124 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-12-07 20:54:47,131 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:54:47,134 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:54:47,142 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:54:47,155 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:54:47,156 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:54:47,156 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:54:47,156 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:54:47,156 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:54:47,156 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:54:47,156 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:54:47,156 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:54:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 20:54:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 20:54:47,168 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:54:47,168 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 20:54:47,168 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:54:47,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:54:47,172 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-12-07 20:54:47,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:54:47,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291086971] [2019-12-07 20:54:47,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:54:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:54:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:54:47,242 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:54:47,243 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:54:47,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:54:47 BoogieIcfgContainer [2019-12-07 20:54:47,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:54:47,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:54:47,253 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:54:47,253 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:54:47,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:54:47" (3/4) ... [2019-12-07 20:54:47,256 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 20:54:47,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:54:47,257 INFO L168 Benchmark]: Toolchain (without parser) took 470.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -126.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:54:47,258 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:54:47,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:47,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.22 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 20:54:47,259 INFO L168 Benchmark]: Boogie Preprocessor took 13.66 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 20:54:47,260 INFO L168 Benchmark]: RCFGBuilder took 123.69 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 20:54:47,260 INFO L168 Benchmark]: TraceAbstraction took 132.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:47,260 INFO L168 Benchmark]: Witness Printer took 3.01 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 20:54:47,263 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 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.22 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 13.66 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 123.69 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 132.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 20:54:48,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:54:48,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:54:48,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:54:48,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:54:48,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:54:48,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:54:48,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:54:48,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:54:48,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:54:48,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:54:48,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:54:48,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:54:48,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:54:48,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:54:48,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:54:48,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:54:48,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:54:48,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:54:48,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:54:48,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:54:48,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:54:48,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:54:48,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:54:48,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:54:48,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:54:48,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:54:48,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:54:48,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:54:48,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:54:48,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:54:48,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:54:48,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:54:48,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:54:48,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:54:48,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:54:48,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:54:48,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:54:48,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:54:48,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:54:48,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:54:48,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:54:48,633 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:54:48,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:54:48,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:54:48,634 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:54:48,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:54:48,634 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:54:48,635 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:54:48,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:54:48,635 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:54:48,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:54:48,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:54:48,636 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:54:48,637 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:54:48,637 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:54:48,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:54:48,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:54:48,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:54:48,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:54:48,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:54:48,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:54:48,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:54:48,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:54:48,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:54:48,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:54:48,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:54:48,638 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:54:48,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:54:48,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:54:48,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:54:48,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:54:48,639 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_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2019-12-07 20:54:48,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:54:48,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:54:48,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:54:48,814 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:54:48,814 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:54:48,815 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 20:54:48,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/8bc74921b/ef946bcf94ed401f90ce5200b6577797/FLAGd55e50b9d [2019-12-07 20:54:49,245 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:54:49,246 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 20:54:49,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/8bc74921b/ef946bcf94ed401f90ce5200b6577797/FLAGd55e50b9d [2019-12-07 20:54:49,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/data/8bc74921b/ef946bcf94ed401f90ce5200b6577797 [2019-12-07 20:54:49,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:54:49,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:54:49,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:54:49,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:54:49,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:54:49,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f6648c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49, skipping insertion in model container [2019-12-07 20:54:49,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:54:49,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:54:49,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:54:49,759 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:54:49,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:54:49,777 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:54:49,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49 WrapperNode [2019-12-07 20:54:49,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:54:49,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:54:49,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:54:49,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:54:49,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:54:49,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:54:49,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:54:49,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:54:49,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... [2019-12-07 20:54:49,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:54:49,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:54:49,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:54:49,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:54:49,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 20:54:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:54:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:54:50,106 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:54:50,106 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 20:54:50,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:54:50 BoogieIcfgContainer [2019-12-07 20:54:50,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:54:50,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:54:50,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:54:50,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:54:50,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:54:49" (1/3) ... [2019-12-07 20:54:50,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75184330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:54:50, skipping insertion in model container [2019-12-07 20:54:50,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:54:49" (2/3) ... [2019-12-07 20:54:50,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75184330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:54:50, skipping insertion in model container [2019-12-07 20:54:50,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:54:50" (3/3) ... [2019-12-07 20:54:50,112 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-12-07 20:54:50,118 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:54:50,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:54:50,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:54:50,143 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:54:50,144 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:54:50,144 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:54:50,144 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:54:50,144 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:54:50,144 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:54:50,144 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:54:50,144 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:54:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 20:54:50,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 20:54:50,156 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:54:50,157 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 20:54:50,157 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:54:50,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:54:50,161 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 20:54:50,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:54:50,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450813903] [2019-12-07 20:54:50,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/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 20:54:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:54:50,210 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:54:50,213 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:54:50,675 WARN L860 $PredicateComparison]: unable to prove that (exists ((currentRoundingMode RoundingMode)) (= ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp_unsigned 11 53) currentRoundingMode ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp 11 53) currentRoundingMode 100.0)))) c_ULTIMATE.start_main_~j~0)) is different from true [2019-12-07 20:54:50,681 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 20:54:50,681 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:54:50,696 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 20:54:50,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450813903] [2019-12-07 20:54:50,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:54:50,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:54:50,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277253885] [2019-12-07 20:54:50,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:54:50,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:54:50,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:54:50,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2019-12-07 20:54:50,712 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-12-07 20:54:50,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:54:50,733 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 20:54:50,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:54:50,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 20:54:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:54:50,738 INFO L225 Difference]: With dead ends: 11 [2019-12-07 20:54:50,739 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:54:50,741 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2019-12-07 20:54:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:54:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:54:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:54:50,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:54:50,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 20:54:50,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:54:50,758 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:54:50,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:54:50,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:54:50,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:54:50,959 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:54:50,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:54:50,970 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:54:50,971 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 20:54:50,971 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:54:50,971 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 20:54:50,972 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-12-07 20:54:50,972 INFO L246 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2019-12-07 20:54:50,972 INFO L246 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-12-07 20:54:50,972 INFO L246 CegarLoopResult]: For program point L2(lines 2 11) no Hoare annotation was computed. [2019-12-07 20:54:50,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:54:50 BoogieIcfgContainer [2019-12-07 20:54:50,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:54:50,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:54:50,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:54:50,984 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:54:50,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:54:50" (3/4) ... [2019-12-07 20:54:50,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:54:51,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 20:54:51,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 20:54:51,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 20:54:51,032 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cffc4dcd-91d2-4879-ae53-7363a2c052ee/bin/utaipan/witness.graphml [2019-12-07 20:54:51,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:54:51,033 INFO L168 Benchmark]: Toolchain (without parser) took 1390.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -112.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:51,033 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 20:54:51,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.20 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 20:54:51,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.03 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:54:51,035 INFO L168 Benchmark]: Boogie Preprocessor took 40.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -166.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:51,035 INFO L168 Benchmark]: RCFGBuilder took 269.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:51,036 INFO L168 Benchmark]: TraceAbstraction took 874.60 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:54:51,036 INFO L168 Benchmark]: Witness Printer took 48.71 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 20:54:51,038 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 134.20 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 20.03 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -166.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 269.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 874.60 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...