./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float1_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_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 d83baf1cdb4ca03660244dae388672dd75d02b3f .............................................................................................................................................................................................................................................. 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_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 d83baf1cdb4ca03660244dae388672dd75d02b3f ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:17:12,571 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:17:12,572 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:17:12,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:17:12,578 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:17:12,579 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:17:12,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:17:12,580 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:17:12,581 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:17:12,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:17:12,582 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:17:12,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:17:12,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:17:12,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:17:12,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:17:12,584 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:17:12,584 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:17:12,585 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:17:12,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:17:12,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:17:12,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:17:12,588 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:17:12,589 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:17:12,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:17:12,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:17:12,590 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:17:12,591 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:17:12,591 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:17:12,592 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:17:12,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:17:12,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:17:12,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:17:12,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:17:12,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:17:12,594 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:17:12,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:17:12,594 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:17:12,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:17:12,601 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:17:12,602 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:17:12,602 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:17:12,602 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:17:12,602 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:17:12,602 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:17:12,603 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:17:12,603 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:17:12,603 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:17:12,603 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:17:12,603 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:17:12,603 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:17:12,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:17:12,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:17:12,605 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:17:12,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:17:12,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:17:12,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:17:12,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:17:12,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:17:12,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:17:12,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:17:12,606 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:17:12,607 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_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-12-09 18:17:12,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:17:12,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:17:12,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:17:12,633 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:17:12,633 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:17:12,633 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-09 18:17:12,668 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/2910a3e86/bc764227785641c88337fb47a802cefa/FLAG3baacf53f [2018-12-09 18:17:13,089 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:17:13,090 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-09 18:17:13,093 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/2910a3e86/bc764227785641c88337fb47a802cefa/FLAG3baacf53f [2018-12-09 18:17:13,102 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/2910a3e86/bc764227785641c88337fb47a802cefa [2018-12-09 18:17:13,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:17:13,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:17:13,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:17:13,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:17:13,108 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:17:13,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9d079e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13, skipping insertion in model container [2018-12-09 18:17:13,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:17:13,126 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:17:13,215 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:17:13,219 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:17:13,230 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:17:13,237 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:17:13,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13 WrapperNode [2018-12-09 18:17:13,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:17:13,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:17:13,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:17:13,238 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:17:13,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:17:13,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:17:13,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:17:13,250 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:17:13,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... [2018-12-09 18:17:13,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:17:13,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:17:13,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:17:13,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:17:13,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 [2018-12-09 18:17:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:17:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:17:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:17:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:17:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:17:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:17:13,385 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:17:13,385 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 18:17:13,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:13 BoogieIcfgContainer [2018-12-09 18:17:13,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:17:13,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:17:13,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:17:13,387 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:17:13,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:17:13" (1/3) ... [2018-12-09 18:17:13,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64557ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:13, skipping insertion in model container [2018-12-09 18:17:13,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:13" (2/3) ... [2018-12-09 18:17:13,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64557ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:13, skipping insertion in model container [2018-12-09 18:17:13,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:13" (3/3) ... [2018-12-09 18:17:13,389 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-12-09 18:17:13,395 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:17:13,398 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-09 18:17:13,407 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-09 18:17:13,424 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:17:13,424 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:17:13,424 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:17:13,424 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:17:13,425 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:17:13,425 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:17:13,425 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:17:13,425 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:17:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-12-09 18:17:13,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 18:17:13,437 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:17:13,438 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:17:13,439 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:17:13,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:17:13,442 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-12-09 18:17:13,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:17:13,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:17:13,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:17:13,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:17:13,471 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:17:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:17:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:17:13,499 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 18:17:13,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:17:13 BoogieIcfgContainer [2018-12-09 18:17:13,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:17:13,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:17:13,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:17:13,511 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:17:13,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:13" (3/4) ... [2018-12-09 18:17:13,514 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 18:17:13,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:17:13,514 INFO L168 Benchmark]: Toolchain (without parser) took 410.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -132.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:17:13,515 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-09 18:17:13,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.99 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. [2018-12-09 18:17:13,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.16 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. [2018-12-09 18:17:13,516 INFO L168 Benchmark]: Boogie Preprocessor took 10.09 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. [2018-12-09 18:17:13,517 INFO L168 Benchmark]: RCFGBuilder took 125.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:17:13,517 INFO L168 Benchmark]: TraceAbstraction took 125.38 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:17:13,517 INFO L168 Benchmark]: Witness Printer took 2.63 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. [2018-12-09 18:17:13,519 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 132.99 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 11.16 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 10.09 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 125.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 125.38 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 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=16occurred 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 [2018-12-09 18:17:14,848 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:17:14,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:17:14,855 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:17:14,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:17:14,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:17:14,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:17:14,857 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:17:14,857 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:17:14,858 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:17:14,858 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:17:14,858 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:17:14,859 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:17:14,859 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:17:14,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:17:14,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:17:14,860 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:17:14,861 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:17:14,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:17:14,863 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:17:14,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:17:14,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:17:14,865 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:17:14,865 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:17:14,865 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:17:14,866 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:17:14,866 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:17:14,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:17:14,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:17:14,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:17:14,867 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:17:14,868 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:17:14,868 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:17:14,868 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:17:14,868 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:17:14,869 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:17:14,869 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 18:17:14,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:17:14,876 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:17:14,877 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:17:14,877 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:17:14,877 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:17:14,877 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:17:14,877 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:17:14,877 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:17:14,877 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:17:14,877 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:17:14,878 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 18:17:14,878 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:17:14,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:17:14,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:17:14,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:17:14,880 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:17:14,880 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 18:17:14,880 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:17:14,880 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 18:17:14,880 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 18:17:14,880 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_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-12-09 18:17:14,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:17:14,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:17:14,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:17:14,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:17:14,912 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:17:14,913 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-09 18:17:14,959 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/74b747150/9e61445b6338486da85c08d6131c21ae/FLAGd7dd85c75 [2018-12-09 18:17:15,348 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:17:15,348 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-09 18:17:15,351 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/74b747150/9e61445b6338486da85c08d6131c21ae/FLAGd7dd85c75 [2018-12-09 18:17:15,359 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/data/74b747150/9e61445b6338486da85c08d6131c21ae [2018-12-09 18:17:15,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:17:15,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:17:15,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:17:15,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:17:15,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:17:15,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fdbfb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15, skipping insertion in model container [2018-12-09 18:17:15,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:17:15,378 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:17:15,458 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:17:15,462 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:17:15,471 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:17:15,479 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:17:15,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15 WrapperNode [2018-12-09 18:17:15,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:17:15,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:17:15,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:17:15,480 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:17:15,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:17:15,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:17:15,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:17:15,493 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:17:15,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... [2018-12-09 18:17:15,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:17:15,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:17:15,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:17:15,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:17:15,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 [2018-12-09 18:17:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:17:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:17:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:17:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:17:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:17:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:17:15,651 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:17:15,651 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 18:17:15,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:15 BoogieIcfgContainer [2018-12-09 18:17:15,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:17:15,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:17:15,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:17:15,654 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:17:15,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:17:15" (1/3) ... [2018-12-09 18:17:15,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5b8bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:15, skipping insertion in model container [2018-12-09 18:17:15,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:17:15" (2/3) ... [2018-12-09 18:17:15,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5b8bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:17:15, skipping insertion in model container [2018-12-09 18:17:15,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:15" (3/3) ... [2018-12-09 18:17:15,656 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-12-09 18:17:15,661 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:17:15,665 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-09 18:17:15,674 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-09 18:17:15,692 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 18:17:15,693 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:17:15,693 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:17:15,693 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:17:15,693 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:17:15,693 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:17:15,693 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:17:15,694 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:17:15,694 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:17:15,704 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-12-09 18:17:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 18:17:15,707 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:17:15,708 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:17:15,709 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:17:15,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:17:15,713 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-12-09 18:17:15,715 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:17:15,715 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/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 [2018-12-09 18:17:15,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:17:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:17:15,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:17:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:17:15,777 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:17:15,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:17:15,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 18:17:15,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:17:15,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:17:15,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 18:17:15,796 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-12-09 18:17:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:17:15,814 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-12-09 18:17:15,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:17:15,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 18:17:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:17:15,819 INFO L225 Difference]: With dead ends: 22 [2018-12-09 18:17:15,819 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:17:15,821 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 [2018-12-09 18:17:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:17:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:17:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:17:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:17:15,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-09 18:17:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:17:15,837 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:17:15,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:17:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:17:15,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:17:15,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 18:17:15,865 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 18:17:15,865 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:17:15,865 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:17:15,865 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 18:17:15,865 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:17:15,865 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:17:15,865 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 2 18) the Hoare annotation is: true [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 2 18) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 2 18) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-09 18:17:15,866 INFO L448 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-12-09 18:17:15,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:17:15 BoogieIcfgContainer [2018-12-09 18:17:15,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:17:15,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:17:15,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:17:15,868 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:17:15,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:17:15" (3/4) ... [2018-12-09 18:17:15,871 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:17:15,875 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 18:17:15,875 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 18:17:15,877 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 18:17:15,878 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 18:17:15,878 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 18:17:15,900 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6bfa3291-1ff0-4466-afda-5279f19afbcc/bin-2019/utaipan/witness.graphml [2018-12-09 18:17:15,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:17:15,900 INFO L168 Benchmark]: Toolchain (without parser) took 539.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -132.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:17:15,901 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-12-09 18:17:15,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.83 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. [2018-12-09 18:17:15,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.69 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. [2018-12-09 18:17:15,902 INFO L168 Benchmark]: Boogie Preprocessor took 15.79 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. [2018-12-09 18:17:15,902 INFO L168 Benchmark]: RCFGBuilder took 142.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:17:15,902 INFO L168 Benchmark]: TraceAbstraction took 215.89 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:17:15,903 INFO L168 Benchmark]: Witness Printer took 31.89 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. [2018-12-09 18:17:15,904 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.83 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 12.69 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 15.79 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 142.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 215.89 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Witness Printer took 31.89 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: 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...