./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 0572227f16868054f9308a9d75f98d2abad6a63b ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 0572227f16868054f9308a9d75f98d2abad6a63b ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 12:21:22,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:21:22,265 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:21:22,272 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:21:22,272 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:21:22,273 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:21:22,273 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:21:22,274 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:21:22,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:21:22,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:21:22,276 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:21:22,277 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:21:22,277 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:21:22,278 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:21:22,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:21:22,279 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:21:22,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:21:22,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:21:22,282 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:21:22,283 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:21:22,284 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:21:22,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:21:22,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:21:22,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:21:22,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:21:22,287 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:21:22,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:21:22,288 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:21:22,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:21:22,289 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:21:22,290 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:21:22,290 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:21:22,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:21:22,290 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:21:22,291 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:21:22,291 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:21:22,291 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 12:21:22,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:21:22,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:21:22,302 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:21:22,303 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:21:22,303 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 12:21:22,303 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 12:21:22,303 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 12:21:22,303 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 12:21:22,303 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 12:21:22,303 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 12:21:22,304 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 12:21:22,304 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 12:21:22,304 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 12:21:22,304 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:21:22,304 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:21:22,305 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:21:22,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:21:22,306 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:21:22,306 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 12:21:22,307 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:21:22,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 12:21:22,307 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 12:21:22,307 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 -> 0572227f16868054f9308a9d75f98d2abad6a63b [2018-12-02 12:21:22,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:21:22,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:21:22,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:21:22,342 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:21:22,342 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:21:22,343 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i [2018-12-02 12:21:22,381 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/5cb53f08f/3ebccfff45164725a12e087bee4a58d0/FLAG3ee784d42 [2018-12-02 12:21:22,694 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:21:22,695 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i [2018-12-02 12:21:22,698 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/5cb53f08f/3ebccfff45164725a12e087bee4a58d0/FLAG3ee784d42 [2018-12-02 12:21:23,114 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/5cb53f08f/3ebccfff45164725a12e087bee4a58d0 [2018-12-02 12:21:23,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:21:23,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:21:23,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:21:23,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:21:23,120 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:21:23,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcf77d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23, skipping insertion in model container [2018-12-02 12:21:23,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:21:23,138 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:21:23,219 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:21:23,222 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:21:23,231 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:21:23,239 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:21:23,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23 WrapperNode [2018-12-02 12:21:23,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:21:23,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:21:23,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:21:23,240 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:21:23,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:21:23,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:21:23,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:21:23,252 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:21:23,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... [2018-12-02 12:21:23,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:21:23,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:21:23,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:21:23,262 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:21:23,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 [2018-12-02 12:21:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:21:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:21:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:21:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:21:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:21:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:21:23,411 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:21:23,412 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 12:21:23,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:23 BoogieIcfgContainer [2018-12-02 12:21:23,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:21:23,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:21:23,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:21:23,414 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:21:23,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:21:23" (1/3) ... [2018-12-02 12:21:23,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66263dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:23, skipping insertion in model container [2018-12-02 12:21:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:23" (2/3) ... [2018-12-02 12:21:23,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66263dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:23, skipping insertion in model container [2018-12-02 12:21:23,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:23" (3/3) ... [2018-12-02 12:21:23,416 INFO L112 eAbstractionObserver]: Analyzing ICFG float2_true-unreach-call_true-termination.i [2018-12-02 12:21:23,422 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:21:23,426 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-02 12:21:23,434 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-02 12:21:23,451 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:21:23,451 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:21:23,451 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:21:23,451 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:21:23,451 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:21:23,452 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:21:23,452 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:21:23,452 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:21:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-12-02 12:21:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 12:21:23,464 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:23,465 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:23,466 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:23,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:23,469 INFO L82 PathProgramCache]: Analyzing trace with hash -484171444, now seen corresponding path program 1 times [2018-12-02 12:21:23,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 12:21:23,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:23,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:23,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 12:21:23,499 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 12:21:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:21:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 12:21:23,527 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 12:21:23,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:21:23 BoogieIcfgContainer [2018-12-02 12:21:23,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:21:23,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:21:23,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:21:23,540 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:21:23,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:23" (3/4) ... [2018-12-02 12:21:23,542 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 12:21:23,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:21:23,543 INFO L168 Benchmark]: Toolchain (without parser) took 426.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -121.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:21:23,544 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:21:23,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.48 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 941.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:23,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.68 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 939.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:23,545 INFO L168 Benchmark]: Boogie Preprocessor took 10.66 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:21:23,545 INFO L168 Benchmark]: RCFGBuilder took 149.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:23,546 INFO L168 Benchmark]: TraceAbstraction took 127.18 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. [2018-12-02 12:21:23,546 INFO L168 Benchmark]: Witness Printer took 2.72 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. [2018-12-02 12:21:23,548 INFO L336 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.48 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 941.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.68 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 939.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.66 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 127.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 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 someBinaryDOUBLEComparisonOperation at line 10. Possible FailurePath: [L5] float a; [L6] double b; [L9] a=1.25L VAL [a=5/4] [L10] COND TRUE !(a==1.25) VAL [a=5/4] [L10] __VERIFIER_error() VAL [a=5/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 4 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-02 12:21:24,870 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 12:21:24,872 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 12:21:24,880 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 12:21:24,880 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 12:21:24,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 12:21:24,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 12:21:24,882 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 12:21:24,884 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 12:21:24,884 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 12:21:24,885 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 12:21:24,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 12:21:24,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 12:21:24,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 12:21:24,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 12:21:24,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 12:21:24,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 12:21:24,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 12:21:24,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 12:21:24,890 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 12:21:24,891 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 12:21:24,891 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 12:21:24,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 12:21:24,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 12:21:24,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 12:21:24,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 12:21:24,894 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 12:21:24,895 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 12:21:24,895 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 12:21:24,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 12:21:24,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 12:21:24,896 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 12:21:24,896 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 12:21:24,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 12:21:24,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 12:21:24,898 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 12:21:24,898 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 12:21:24,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 12:21:24,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 12:21:24,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 12:21:24,906 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 12:21:24,906 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 12:21:24,907 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 12:21:24,907 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 12:21:24,907 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 12:21:24,907 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 12:21:24,907 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 12:21:24,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 12:21:24,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 12:21:24,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 12:21:24,909 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 12:21:24,909 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 12:21:24,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 12:21:24,910 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 12:21:24,910 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 12:21:24,910 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 12:21:24,910 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 12:21:24,910 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 12:21:24,910 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 -> 0572227f16868054f9308a9d75f98d2abad6a63b [2018-12-02 12:21:24,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 12:21:24,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 12:21:24,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 12:21:24,945 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 12:21:24,946 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 12:21:24,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i [2018-12-02 12:21:24,984 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/c7535a5e1/ef184c4ef4614ba3b24b449627f03073/FLAG5cfe3aaa0 [2018-12-02 12:21:25,434 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 12:21:25,434 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/sv-benchmarks/c/floats-cbmc-regression/float2_true-unreach-call_true-termination.i [2018-12-02 12:21:25,438 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/c7535a5e1/ef184c4ef4614ba3b24b449627f03073/FLAG5cfe3aaa0 [2018-12-02 12:21:25,445 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/data/c7535a5e1/ef184c4ef4614ba3b24b449627f03073 [2018-12-02 12:21:25,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 12:21:25,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 12:21:25,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 12:21:25,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 12:21:25,451 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 12:21:25,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a7c14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25, skipping insertion in model container [2018-12-02 12:21:25,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 12:21:25,466 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 12:21:25,545 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:21:25,549 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 12:21:25,558 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 12:21:25,566 INFO L195 MainTranslator]: Completed translation [2018-12-02 12:21:25,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25 WrapperNode [2018-12-02 12:21:25,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 12:21:25,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 12:21:25,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 12:21:25,568 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 12:21:25,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 12:21:25,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 12:21:25,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 12:21:25,581 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 12:21:25,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... [2018-12-02 12:21:25,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 12:21:25,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 12:21:25,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 12:21:25,595 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 12:21:25,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 [2018-12-02 12:21:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 12:21:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 12:21:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 12:21:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 12:21:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 12:21:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 12:21:25,881 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 12:21:25,881 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 12:21:25,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:25 BoogieIcfgContainer [2018-12-02 12:21:25,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 12:21:25,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 12:21:25,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 12:21:25,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 12:21:25,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:21:25" (1/3) ... [2018-12-02 12:21:25,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c39e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:25, skipping insertion in model container [2018-12-02 12:21:25,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:21:25" (2/3) ... [2018-12-02 12:21:25,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c39e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:21:25, skipping insertion in model container [2018-12-02 12:21:25,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:25" (3/3) ... [2018-12-02 12:21:25,886 INFO L112 eAbstractionObserver]: Analyzing ICFG float2_true-unreach-call_true-termination.i [2018-12-02 12:21:25,892 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 12:21:25,896 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-02 12:21:25,905 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-02 12:21:25,922 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 12:21:25,922 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 12:21:25,923 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 12:21:25,923 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 12:21:25,923 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 12:21:25,923 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 12:21:25,923 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 12:21:25,923 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 12:21:25,923 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 12:21:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-12-02 12:21:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 12:21:25,937 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:25,938 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:25,939 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:25,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:25,942 INFO L82 PathProgramCache]: Analyzing trace with hash -484171444, now seen corresponding path program 1 times [2018-12-02 12:21:25,944 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:21:25,945 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/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 [2018-12-02 12:21:25,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:25,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:21:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:26,004 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:21:26,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:26,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 12:21:26,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:21:26,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:21:26,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,028 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-12-02 12:21:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:26,077 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-12-02 12:21:26,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:21:26,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-02 12:21:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:26,084 INFO L225 Difference]: With dead ends: 40 [2018-12-02 12:21:26,084 INFO L226 Difference]: Without dead ends: 18 [2018-12-02 12:21:26,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-02 12:21:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-02 12:21:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-02 12:21:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-12-02 12:21:26,106 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 7 [2018-12-02 12:21:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:26,107 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-12-02 12:21:26,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:21:26,107 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-12-02 12:21:26,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 12:21:26,107 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:26,107 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:26,108 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:26,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:26,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1432165234, now seen corresponding path program 1 times [2018-12-02 12:21:26,108 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:21:26,108 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 12:21:26,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:26,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:21:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:26,137 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:21:26,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:26,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 12:21:26,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:21:26,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:21:26,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,145 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 3 states. [2018-12-02 12:21:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:26,151 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-02 12:21:26,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:21:26,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-02 12:21:26,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:26,151 INFO L225 Difference]: With dead ends: 18 [2018-12-02 12:21:26,152 INFO L226 Difference]: Without dead ends: 16 [2018-12-02 12:21:26,152 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-02 12:21:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-02 12:21:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-02 12:21:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2018-12-02 12:21:26,154 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 9 [2018-12-02 12:21:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:26,154 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2018-12-02 12:21:26,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:21:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-12-02 12:21:26,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 12:21:26,154 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:26,155 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:26,155 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:26,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:26,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1921130384, now seen corresponding path program 1 times [2018-12-02 12:21:26,155 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:21:26,155 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 12:21:26,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:26,171 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:21:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:26,177 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:21:26,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:26,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 12:21:26,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:21:26,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:21:26,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,184 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 3 states. [2018-12-02 12:21:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:26,237 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-12-02 12:21:26,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:21:26,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-02 12:21:26,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:26,237 INFO L225 Difference]: With dead ends: 16 [2018-12-02 12:21:26,238 INFO L226 Difference]: Without dead ends: 14 [2018-12-02 12:21:26,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-02 12:21:26,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-02 12:21:26,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-02 12:21:26,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-12-02 12:21:26,239 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2018-12-02 12:21:26,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:26,240 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-12-02 12:21:26,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:21:26,240 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-12-02 12:21:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 12:21:26,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 12:21:26,240 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 12:21:26,240 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 12:21:26,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 12:21:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash 629763314, now seen corresponding path program 1 times [2018-12-02 12:21:26,241 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 12:21:26,241 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-02 12:21:26,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 12:21:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 12:21:26,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 12:21:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 12:21:26,262 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 12:21:26,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 12:21:26,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 12:21:26,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 12:21:26,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 12:21:26,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,269 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 3 states. [2018-12-02 12:21:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 12:21:26,301 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-12-02 12:21:26,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 12:21:26,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-02 12:21:26,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 12:21:26,302 INFO L225 Difference]: With dead ends: 14 [2018-12-02 12:21:26,302 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 12:21:26,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 12:21:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 12:21:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 12:21:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 12:21:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 12:21:26,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-12-02 12:21:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 12:21:26,303 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 12:21:26,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 12:21:26,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 12:21:26,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 12:21:26,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 12:21:26,330 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 12:21:26,330 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 22) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 3 22) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-12-02 12:21:26,330 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L13-3(line 13) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 22) the Hoare annotation is: true [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-12-02 12:21:26,331 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-12-02 12:21:26,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:21:26 BoogieIcfgContainer [2018-12-02 12:21:26,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 12:21:26,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 12:21:26,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 12:21:26,333 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 12:21:26,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:21:25" (3/4) ... [2018-12-02 12:21:26,336 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 12:21:26,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 12:21:26,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 12:21:26,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 12:21:26,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 12:21:26,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 12:21:26,365 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b4c926cf-b373-4e6d-a28b-35b8f5c6541c/bin-2019/utaipan/witness.graphml [2018-12-02 12:21:26,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 12:21:26,366 INFO L168 Benchmark]: Toolchain (without parser) took 918.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -101.7 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:26,367 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:21:26,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.48 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:26,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.02 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:21:26,367 INFO L168 Benchmark]: Boogie Preprocessor took 13.64 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 12:21:26,368 INFO L168 Benchmark]: RCFGBuilder took 286.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:26,368 INFO L168 Benchmark]: TraceAbstraction took 451.44 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:26,368 INFO L168 Benchmark]: Witness Printer took 32.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-02 12:21:26,370 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.48 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 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 13.02 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.64 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 286.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 451.44 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: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 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.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 14 SDslu, 27 SDs, 0 SdLazy, 18 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 544 SizeOfPredicates, 4 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...