./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 .................................................................................................................................................................................................................................................................... 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_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:02:01,674 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:02:01,675 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:02:01,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:02:01,683 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:02:01,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:02:01,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:02:01,686 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:02:01,687 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:02:01,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:02:01,688 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:02:01,689 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:02:01,689 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:02:01,690 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:02:01,691 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:02:01,691 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:02:01,692 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:02:01,693 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:02:01,695 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:02:01,696 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:02:01,697 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:02:01,698 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:02:01,699 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:02:01,699 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:02:01,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:02:01,700 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:02:01,701 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:02:01,702 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:02:01,702 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:02:01,703 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:02:01,703 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:02:01,704 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:02:01,704 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:02:01,704 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:02:01,705 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:02:01,705 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:02:01,705 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:02:01,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:02:01,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:02:01,716 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:02:01,717 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:02:01,717 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:02:01,717 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:02:01,717 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:02:01,717 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:02:01,717 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:02:01,717 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:02:01,718 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:02:01,718 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:02:01,718 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:02:01,718 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:02:01,719 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:02:01,719 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:02:01,719 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:02:01,719 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:02:01,719 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:02:01,719 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:02:01,720 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:02:01,720 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:02:01,720 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:02:01,720 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:02:01,720 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:02:01,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:02:01,720 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:02:01,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:02:01,721 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:02:01,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:02:01,722 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:02:01,722 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_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-18 12:02:01,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:02:01,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:02:01,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:02:01,757 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:02:01,757 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:02:01,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-18 12:02:01,790 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/1291bda3c/ada4cf9aed9d4b71b19069b886c5abf0/FLAG62ffa1c11 [2018-11-18 12:02:02,181 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:02:02,182 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-18 12:02:02,185 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/1291bda3c/ada4cf9aed9d4b71b19069b886c5abf0/FLAG62ffa1c11 [2018-11-18 12:02:02,194 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/1291bda3c/ada4cf9aed9d4b71b19069b886c5abf0 [2018-11-18 12:02:02,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:02:02,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:02:02,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:02:02,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:02:02,200 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:02:02,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c203836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02, skipping insertion in model container [2018-11-18 12:02:02,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:02:02,222 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:02:02,326 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:02:02,328 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:02:02,338 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:02:02,347 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:02:02,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02 WrapperNode [2018-11-18 12:02:02,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:02:02,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:02:02,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:02:02,348 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:02:02,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:02:02,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:02:02,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:02:02,361 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:02:02,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... [2018-11-18 12:02:02,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:02:02,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:02:02,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:02:02,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:02:02,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 [2018-11-18 12:02:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:02:02,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:02:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:02:02,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:02:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:02:02,450 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:02:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-18 12:02:02,450 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-18 12:02:02,559 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:02:02,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:02 BoogieIcfgContainer [2018-11-18 12:02:02,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:02:02,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:02:02,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:02:02,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:02:02,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:02:02" (1/3) ... [2018-11-18 12:02:02,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a06c09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:02:02, skipping insertion in model container [2018-11-18 12:02:02,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:02" (2/3) ... [2018-11-18 12:02:02,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a06c09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:02:02, skipping insertion in model container [2018-11-18 12:02:02,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:02" (3/3) ... [2018-11-18 12:02:02,565 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-18 12:02:02,574 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:02:02,580 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:02:02,594 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:02:02,620 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:02:02,620 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:02:02,620 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:02:02,620 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:02:02,620 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:02:02,621 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:02:02,621 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:02:02,621 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:02:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-18 12:02:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 12:02:02,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:02,641 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:02:02,643 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:02,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:02,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-18 12:02:02,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:02:02,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:02,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:02,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:02:02,690 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:02:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:02:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:02:02,740 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:02:02,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:02:02 BoogieIcfgContainer [2018-11-18 12:02:02,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:02:02,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:02:02,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:02:02,761 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:02:02,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:02" (3/4) ... [2018-11-18 12:02:02,765 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:02:02,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:02:02,766 INFO L168 Benchmark]: Toolchain (without parser) took 569.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:02:02,767 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:02:02,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.08 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:02,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.14 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:02:02,769 INFO L168 Benchmark]: Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:02,769 INFO L168 Benchmark]: RCFGBuilder took 186.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:02,770 INFO L168 Benchmark]: TraceAbstraction took 200.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:02,770 INFO L168 Benchmark]: Witness Printer took 4.26 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: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:02,773 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.08 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 13.14 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 186.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 200.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.26 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: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] RET d = 1.0 VAL [\old(d)=0, d=1] [L18] f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 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=19occurred 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, 14 NumberOfCodeBlocks, 14 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 0.1.23-5842f4b [2018-11-18 12:02:04,178 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:02:04,180 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:02:04,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:02:04,188 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:02:04,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:02:04,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:02:04,190 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:02:04,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:02:04,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:02:04,193 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:02:04,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:02:04,194 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:02:04,194 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:02:04,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:02:04,196 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:02:04,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:02:04,198 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:02:04,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:02:04,200 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:02:04,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:02:04,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:02:04,203 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:02:04,203 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:02:04,204 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:02:04,204 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:02:04,205 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:02:04,206 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:02:04,207 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:02:04,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:02:04,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:02:04,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:02:04,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:02:04,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:02:04,209 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:02:04,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:02:04,209 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:02:04,220 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:02:04,220 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:02:04,221 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:02:04,221 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:02:04,221 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:02:04,221 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:02:04,221 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:02:04,221 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:02:04,221 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:02:04,222 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:02:04,222 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:02:04,222 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:02:04,222 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:02:04,222 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:02:04,223 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:02:04,224 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:02:04,224 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:02:04,224 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:02:04,224 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:02:04,224 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:02:04,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:02:04,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:02:04,225 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:02:04,225 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:02:04,225 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:02:04,225 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:02:04,225 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:02:04,225 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:02:04,225 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_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-18 12:02:04,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:02:04,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:02:04,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:02:04,269 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:02:04,269 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:02:04,270 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-18 12:02:04,318 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/538eb13b2/08fdd11c9f37409e96df6acacd070eb0/FLAG5dc1c3ea6 [2018-11-18 12:02:04,635 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:02:04,635 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-18 12:02:04,639 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/538eb13b2/08fdd11c9f37409e96df6acacd070eb0/FLAG5dc1c3ea6 [2018-11-18 12:02:05,081 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/data/538eb13b2/08fdd11c9f37409e96df6acacd070eb0 [2018-11-18 12:02:05,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:02:05,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:02:05,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:02:05,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:02:05,087 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:02:05,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3455a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05, skipping insertion in model container [2018-11-18 12:02:05,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:02:05,106 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:02:05,216 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:02:05,220 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:02:05,229 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:02:05,238 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:02:05,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05 WrapperNode [2018-11-18 12:02:05,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:02:05,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:02:05,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:02:05,239 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:02:05,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:02:05,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:02:05,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:02:05,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:02:05,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... [2018-11-18 12:02:05,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:02:05,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:02:05,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:02:05,270 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:02:05,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 [2018-11-18 12:02:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:02:05,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:02:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:02:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:02:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:02:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:02:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-18 12:02:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-18 12:02:06,324 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:02:06,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:06 BoogieIcfgContainer [2018-11-18 12:02:06,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:02:06,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:02:06,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:02:06,327 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:02:06,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:02:05" (1/3) ... [2018-11-18 12:02:06,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@befe994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:02:06, skipping insertion in model container [2018-11-18 12:02:06,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:02:05" (2/3) ... [2018-11-18 12:02:06,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@befe994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:02:06, skipping insertion in model container [2018-11-18 12:02:06,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:06" (3/3) ... [2018-11-18 12:02:06,330 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-18 12:02:06,338 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:02:06,342 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:02:06,350 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:02:06,369 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:02:06,369 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:02:06,369 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:02:06,370 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:02:06,370 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:02:06,370 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:02:06,370 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:02:06,370 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:02:06,370 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:02:06,385 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-18 12:02:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 12:02:06,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:06,390 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:02:06,391 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:06,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:06,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-18 12:02:06,397 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:02:06,397 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 [2018-11-18 12:02:06,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:06,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:02:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:02:06,628 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:02:06,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:02:06,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:02:06,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:02:06,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:02:06,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:02:06,663 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-11-18 12:02:08,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:08,476 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-11-18 12:02:08,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:02:08,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-18 12:02:08,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:08,485 INFO L225 Difference]: With dead ends: 30 [2018-11-18 12:02:08,485 INFO L226 Difference]: Without dead ends: 15 [2018-11-18 12:02:08,487 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:02:08,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-18 12:02:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-18 12:02:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 12:02:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-18 12:02:08,509 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-11-18 12:02:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:08,510 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-18 12:02:08,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:02:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-18 12:02:08,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 12:02:08,510 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:02:08,511 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:02:08,511 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:02:08,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:02:08,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-11-18 12:02:08,511 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:02:08,512 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/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 [2018-11-18 12:02:08,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:02:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:02:08,664 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:02:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:02:08,730 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:02:08,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:02:08,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:02:08,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:02:08,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:02:08,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:02:08,740 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-11-18 12:02:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:02:09,906 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-18 12:02:09,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:02:09,906 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-18 12:02:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:02:09,907 INFO L225 Difference]: With dead ends: 15 [2018-11-18 12:02:09,907 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:02:09,908 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:02:09,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:02:09,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:02:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:02:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:02:09,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-18 12:02:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:02:09,909 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:02:09,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:02:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:02:09,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:02:09,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:02:09,949 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:02:09,950 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:02:09,950 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:02:09,950 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:02:09,950 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:02:09,950 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:02:09,950 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:02:09,950 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-11-18 12:02:09,950 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-11-18 12:02:09,950 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-18 12:02:09,951 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-18 12:02:09,951 INFO L425 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-11-18 12:02:09,951 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-18 12:02:09,951 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-11-18 12:02:09,951 INFO L421 ceAbstractionStarter]: At program point L15-2(lines 15 16) the Hoare annotation is: (or (= (bvadd main_~x~0 (_ bv4294967292 32)) (_ bv0 32)) (= (bvadd main_~x~0 (_ bv4294967294 32)) (_ bv0 32))) [2018-11-18 12:02:09,951 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-11-18 12:02:09,951 INFO L425 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-11-18 12:02:09,952 INFO L425 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-11-18 12:02:09,952 INFO L428 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-11-18 12:02:09,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:02:09 BoogieIcfgContainer [2018-11-18 12:02:09,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:02:09,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:02:09,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:02:09,955 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:02:09,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:02:06" (3/4) ... [2018-11-18 12:02:09,957 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:02:09,962 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:02:09,963 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:02:09,963 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-11-18 12:02:09,966 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 12:02:09,966 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:02:09,994 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4fc694be-a30c-4c25-9a5e-ebf641f9d0ef/bin-2019/utaipan/witness.graphml [2018-11-18 12:02:09,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:02:09,995 INFO L168 Benchmark]: Toolchain (without parser) took 4911.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:09,996 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:02:09,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.73 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:09,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.87 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:09,997 INFO L168 Benchmark]: Boogie Preprocessor took 16.55 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:02:09,998 INFO L168 Benchmark]: RCFGBuilder took 1054.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:09,998 INFO L168 Benchmark]: TraceAbstraction took 3628.94 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:02:09,999 INFO L168 Benchmark]: Witness Printer took 40.12 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. [2018-11-18 12:02:10,001 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.73 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 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 13.87 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.55 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1054.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3628.94 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 40.12 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: 24]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...