./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_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_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 8ccc35369aa7fc4059706b8166915b481ecdc09d .................................................................................................................................................................................................................................................. 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_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 8ccc35369aa7fc4059706b8166915b481ecdc09d ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 19:02:00,550 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:02:00,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:02:00,557 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:02:00,557 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:02:00,558 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:02:00,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:02:00,559 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:02:00,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:02:00,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:02:00,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:02:00,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:02:00,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:02:00,562 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:02:00,563 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:02:00,563 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:02:00,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:02:00,564 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:02:00,565 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:02:00,566 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:02:00,567 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:02:00,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:02:00,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:02:00,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:02:00,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:02:00,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:02:00,570 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:02:00,570 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:02:00,570 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:02:00,571 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:02:00,571 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:02:00,572 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:02:00,572 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:02:00,572 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:02:00,572 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:02:00,573 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:02:00,573 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 19:02:00,580 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:02:00,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:02:00,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:02:00,581 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:02:00,581 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:02:00,581 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:02:00,581 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:02:00,581 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:02:00,582 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:02:00,582 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:02:00,582 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:02:00,582 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:02:00,582 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:02:00,583 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:02:00,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:02:00,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:02:00,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:02:00,585 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:02:00,585 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:02:00,585 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:02:00,585 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:02:00,585 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:02:00,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:02:00,585 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 19:02:00,585 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_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-12-08 19:02:00,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:02:00,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:02:00,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:02:00,615 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:02:00,615 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:02:00,615 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-08 19:02:00,654 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/d481387bd/bbb6fcd8656d47c18b6537286a60a5af/FLAG54fcfa46e [2018-12-08 19:02:01,061 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:02:01,061 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-08 19:02:01,064 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/d481387bd/bbb6fcd8656d47c18b6537286a60a5af/FLAG54fcfa46e [2018-12-08 19:02:01,072 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/d481387bd/bbb6fcd8656d47c18b6537286a60a5af [2018-12-08 19:02:01,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:02:01,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:02:01,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:02:01,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:02:01,077 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:02:01,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aedf161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01, skipping insertion in model container [2018-12-08 19:02:01,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:02:01,092 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:02:01,185 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:02:01,189 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:02:01,202 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:02:01,210 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:02:01,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01 WrapperNode [2018-12-08 19:02:01,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:02:01,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:02:01,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:02:01,211 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:02:01,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:02:01,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:02:01,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:02:01,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:02:01,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... [2018-12-08 19:02:01,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:02:01,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:02:01,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:02:01,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:02:01,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 [2018-12-08 19:02:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-12-08 19:02:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-12-08 19:02:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:02:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:02:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:02:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:02:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-12-08 19:02:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-12-08 19:02:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:02:01,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:02:01,295 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-12-08 19:02:01,295 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-12-08 19:02:01,381 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:02:01,382 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 19:02:01,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:01 BoogieIcfgContainer [2018-12-08 19:02:01,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:02:01,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:02:01,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:02:01,385 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:02:01,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:02:01" (1/3) ... [2018-12-08 19:02:01,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ea94c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:02:01, skipping insertion in model container [2018-12-08 19:02:01,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:01" (2/3) ... [2018-12-08 19:02:01,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ea94c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:02:01, skipping insertion in model container [2018-12-08 19:02:01,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:01" (3/3) ... [2018-12-08 19:02:01,388 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-12-08 19:02:01,396 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:02:01,402 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 19:02:01,412 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 19:02:01,432 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:02:01,432 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:02:01,432 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:02:01,432 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:02:01,432 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:02:01,433 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:02:01,433 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:02:01,433 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:02:01,445 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-08 19:02:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 19:02:01,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:01,449 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:01,451 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:01,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:01,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-12-08 19:02:01,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:02:01,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:01,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:01,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:02:01,485 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:02:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:02:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:02:01,518 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:02:01,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:02:01 BoogieIcfgContainer [2018-12-08 19:02:01,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:02:01,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:02:01,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:02:01,532 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:02:01,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:01" (3/4) ... [2018-12-08 19:02:01,536 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:02:01,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:02:01,537 INFO L168 Benchmark]: Toolchain (without parser) took 462.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:02:01,538 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:02:01,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.23 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:01,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.66 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:01,540 INFO L168 Benchmark]: Boogie Preprocessor took 10.93 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:02:01,540 INFO L168 Benchmark]: RCFGBuilder took 148.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:01,541 INFO L168 Benchmark]: TraceAbstraction took 149.03 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:01,541 INFO L168 Benchmark]: Witness Printer took 3.98 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. [2018-12-08 19:02:01,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.23 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.66 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.93 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 148.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 149.03 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L34] CALL multiply() [L5] float f1=0x1.000000p-1f; [L6] float f2=0x1.fffffep-126f; [L8] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. UNSAFE Result, 0.1s 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=29occurred 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, 8 NumberOfCodeBlocks, 8 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 [2018-12-08 19:02:02,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:02:02,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:02:02,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:02:02,849 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:02:02,849 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:02:02,850 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:02:02,851 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:02:02,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:02:02,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:02:02,852 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:02:02,852 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:02:02,853 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:02:02,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:02:02,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:02:02,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:02:02,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:02:02,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:02:02,856 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:02:02,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:02:02,857 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:02:02,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:02:02,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:02:02,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:02:02,859 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:02:02,860 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:02:02,860 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:02:02,861 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:02:02,861 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:02:02,862 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:02:02,862 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:02:02,862 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:02:02,862 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:02:02,862 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:02:02,863 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:02:02,863 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:02:02,863 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 19:02:02,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:02:02,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:02:02,871 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:02:02,871 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:02:02,871 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:02:02,871 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:02:02,871 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:02:02,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:02:02,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:02:02,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:02:02,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:02:02,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 19:02:02,874 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 19:02:02,874 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_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-12-08 19:02:02,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:02:02,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:02:02,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:02:02,907 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:02:02,907 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:02:02,908 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-08 19:02:02,944 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/9a7cac4a7/feee40bbba404414bc988d3ba846c796/FLAG9311b7da7 [2018-12-08 19:02:03,275 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:02:03,275 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-12-08 19:02:03,279 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/9a7cac4a7/feee40bbba404414bc988d3ba846c796/FLAG9311b7da7 [2018-12-08 19:02:03,672 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/data/9a7cac4a7/feee40bbba404414bc988d3ba846c796 [2018-12-08 19:02:03,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:02:03,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:02:03,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:02:03,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:02:03,678 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:02:03,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63407dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03, skipping insertion in model container [2018-12-08 19:02:03,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:02:03,694 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:02:03,783 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:02:03,787 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:02:03,801 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:02:03,810 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:02:03,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03 WrapperNode [2018-12-08 19:02:03,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:02:03,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:02:03,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:02:03,811 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:02:03,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:02:03,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:02:03,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:02:03,824 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:02:03,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... [2018-12-08 19:02:03,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:02:03,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:02:03,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:02:03,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:02:03,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 [2018-12-08 19:02:03,898 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-12-08 19:02:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-12-08 19:02:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:02:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:02:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:02:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:02:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-12-08 19:02:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-12-08 19:02:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:02:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:02:03,899 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-12-08 19:02:03,899 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-12-08 19:02:03,987 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:02:03,987 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 19:02:03,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:03 BoogieIcfgContainer [2018-12-08 19:02:03,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:02:03,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:02:03,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:02:03,990 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:02:03,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:02:03" (1/3) ... [2018-12-08 19:02:03,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0b9f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:02:03, skipping insertion in model container [2018-12-08 19:02:03,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:02:03" (2/3) ... [2018-12-08 19:02:03,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0b9f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:02:03, skipping insertion in model container [2018-12-08 19:02:03,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:03" (3/3) ... [2018-12-08 19:02:03,992 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-12-08 19:02:04,001 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:02:04,007 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 19:02:04,019 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 19:02:04,038 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 19:02:04,038 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:02:04,038 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:02:04,039 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:02:04,039 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:02:04,039 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:02:04,039 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:02:04,039 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:02:04,039 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:02:04,048 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-08 19:02:04,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 19:02:04,051 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:04,052 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:04,053 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:04,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:04,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-12-08 19:02:04,058 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:02:04,059 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 [2018-12-08 19:02:04,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:04,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:04,147 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:02:04,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:02:04,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 19:02:04,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:02:04,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:02:04,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:04,166 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-12-08 19:02:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:04,182 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-12-08 19:02:04,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:02:04,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-08 19:02:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:04,189 INFO L225 Difference]: With dead ends: 49 [2018-12-08 19:02:04,189 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 19:02:04,191 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 19:02:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-08 19:02:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-08 19:02:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-12-08 19:02:04,212 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-12-08 19:02:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:04,212 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-12-08 19:02:04,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:02:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-12-08 19:02:04,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 19:02:04,213 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:04,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:04,214 INFO L423 AbstractCegarLoop]: === Iteration 2 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:04,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:04,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1652764716, now seen corresponding path program 1 times [2018-12-08 19:02:04,215 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:02:04,215 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 [2018-12-08 19:02:04,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:04,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:04,420 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:02:04,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:02:04,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 19:02:04,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:02:04,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:02:04,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:04,430 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 3 states. [2018-12-08 19:02:04,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:04,434 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-12-08 19:02:04,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:02:04,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 19:02:04,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:04,435 INFO L225 Difference]: With dead ends: 21 [2018-12-08 19:02:04,436 INFO L226 Difference]: Without dead ends: 19 [2018-12-08 19:02:04,436 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 [2018-12-08 19:02:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-12-08 19:02:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-12-08 19:02:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-08 19:02:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-12-08 19:02:04,439 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 13 [2018-12-08 19:02:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:04,440 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-12-08 19:02:04,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:02:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-12-08 19:02:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 19:02:04,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:02:04,440 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:02:04,441 INFO L423 AbstractCegarLoop]: === Iteration 3 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:02:04,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:02:04,441 INFO L82 PathProgramCache]: Analyzing trace with hash -207607829, now seen corresponding path program 1 times [2018-12-08 19:02:04,441 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:02:04,441 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/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 [2018-12-08 19:02:04,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:02:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 19:02:04,663 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 19:02:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 19:02:04,672 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 19:02:04,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 19:02:04,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 19:02:04,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 19:02:04,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 19:02:04,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:04,682 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2018-12-08 19:02:04,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 19:02:04,684 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-12-08 19:02:04,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 19:02:04,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-08 19:02:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 19:02:04,685 INFO L225 Difference]: With dead ends: 19 [2018-12-08 19:02:04,685 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 19:02:04,685 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 19:02:04,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 19:02:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 19:02:04,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 19:02:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 19:02:04,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-12-08 19:02:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 19:02:04,686 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 19:02:04,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 19:02:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 19:02:04,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 19:02:04,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 19:02:04,719 INFO L448 ceAbstractionStarter]: For program point castEXIT(lines 23 30) no Hoare annotation was computed. [2018-12-08 19:02:04,719 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-12-08 19:02:04,719 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L451 ceAbstractionStarter]: At program point castENTRY(lines 23 30) the Hoare annotation is: true [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point L29-3(lines 23 30) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point castErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 19:02:04,720 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 13 21) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L451 ceAbstractionStarter]: At program point divideENTRY(lines 13 21) the Hoare annotation is: true [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point divideEXIT(lines 13 21) no Hoare annotation was computed. [2018-12-08 19:02:04,720 INFO L448 ceAbstractionStarter]: For program point divideErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 32 37) the Hoare annotation is: true [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 32 37) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 32 37) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L451 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: true [2018-12-08 19:02:04,721 INFO L451 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: true [2018-12-08 19:02:04,721 INFO L451 ceAbstractionStarter]: At program point multiplyENTRY(lines 3 11) the Hoare annotation is: true [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point multiplyEXIT(lines 3 11) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-08 19:02:04,721 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 3 11) no Hoare annotation was computed. [2018-12-08 19:02:04,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:02:04 BoogieIcfgContainer [2018-12-08 19:02:04,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:02:04,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:02:04,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:02:04,723 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:02:04,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:02:03" (3/4) ... [2018-12-08 19:02:04,726 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 19:02:04,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cast [2018-12-08 19:02:04,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 19:02:04,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure divide [2018-12-08 19:02:04,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 19:02:04,730 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure multiply [2018-12-08 19:02:04,732 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-08 19:02:04,732 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 19:02:04,733 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 19:02:04,755 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1f152bd6-4484-4a3d-a194-85b79bd88db5/bin-2019/utaipan/witness.graphml [2018-12-08 19:02:04,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:02:04,756 INFO L168 Benchmark]: Toolchain (without parser) took 1081.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:04,757 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-12-08 19:02:04,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.71 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:04,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.30 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:04,757 INFO L168 Benchmark]: Boogie Preprocessor took 13.42 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:02:04,757 INFO L168 Benchmark]: RCFGBuilder took 149.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:04,758 INFO L168 Benchmark]: TraceAbstraction took 735.21 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:02:04,758 INFO L168 Benchmark]: Witness Printer took 32.26 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. [2018-12-08 19:02:04,759 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.71 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 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 13.30 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.42 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 735.21 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: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 11.5 GB. * Witness Printer took 32.26 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: 29]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 20]: 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 4 SDslu, 53 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 755 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...