./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c --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_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 0d806ca1b262345211037ccd3e4a22cabffa047b ................................................................................................................................................................................................................................................................................................................ 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_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 0d806ca1b262345211037ccd3e4a22cabffa047b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:07:09,586 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 03:07:09,587 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 03:07:09,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 03:07:09,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 03:07:09,594 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 03:07:09,594 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 03:07:09,595 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 03:07:09,596 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 03:07:09,596 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 03:07:09,597 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 03:07:09,597 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 03:07:09,597 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 03:07:09,598 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 03:07:09,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 03:07:09,598 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 03:07:09,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 03:07:09,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 03:07:09,601 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 03:07:09,601 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 03:07:09,602 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 03:07:09,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 03:07:09,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 03:07:09,604 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 03:07:09,604 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 03:07:09,604 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 03:07:09,605 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 03:07:09,605 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 03:07:09,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 03:07:09,606 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 03:07:09,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 03:07:09,606 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 03:07:09,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 03:07:09,607 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 03:07:09,607 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 03:07:09,607 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 03:07:09,608 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 03:07:09,615 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 03:07:09,615 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 03:07:09,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 03:07:09,615 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 03:07:09,616 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 03:07:09,616 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 03:07:09,617 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 03:07:09,617 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 03:07:09,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:07:09,618 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 03:07:09,618 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 03:07:09,619 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 03:07:09,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 03:07:09,619 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 03:07:09,619 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_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2018-12-09 03:07:09,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 03:07:09,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 03:07:09,644 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 03:07:09,645 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 03:07:09,645 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 03:07:09,645 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-12-09 03:07:09,680 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/c9420d899/9ae883d3857f4345b02cec650ad83128/FLAG6e479e394 [2018-12-09 03:07:10,134 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 03:07:10,134 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-12-09 03:07:10,138 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/c9420d899/9ae883d3857f4345b02cec650ad83128/FLAG6e479e394 [2018-12-09 03:07:10,146 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/c9420d899/9ae883d3857f4345b02cec650ad83128 [2018-12-09 03:07:10,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 03:07:10,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 03:07:10,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 03:07:10,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 03:07:10,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 03:07:10,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7962e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10, skipping insertion in model container [2018-12-09 03:07:10,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 03:07:10,167 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 03:07:10,259 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:07:10,261 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 03:07:10,278 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:07:10,319 INFO L195 MainTranslator]: Completed translation [2018-12-09 03:07:10,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10 WrapperNode [2018-12-09 03:07:10,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 03:07:10,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 03:07:10,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 03:07:10,320 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 03:07:10,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 03:07:10,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 03:07:10,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 03:07:10,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 03:07:10,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... [2018-12-09 03:07:10,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 03:07:10,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 03:07:10,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 03:07:10,355 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 03:07:10,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 03:07:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 03:07:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 03:07:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 03:07:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 03:07:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 03:07:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 03:07:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-09 03:07:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-09 03:07:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 03:07:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 03:07:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 03:07:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 03:07:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 03:07:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 03:07:10,545 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 03:07:10,546 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 03:07:10,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:07:10 BoogieIcfgContainer [2018-12-09 03:07:10,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 03:07:10,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 03:07:10,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 03:07:10,550 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 03:07:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:07:10" (1/3) ... [2018-12-09 03:07:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2228d838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:07:10, skipping insertion in model container [2018-12-09 03:07:10,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:10" (2/3) ... [2018-12-09 03:07:10,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2228d838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:07:10, skipping insertion in model container [2018-12-09 03:07:10,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:07:10" (3/3) ... [2018-12-09 03:07:10,552 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b_true-unreach-call.c [2018-12-09 03:07:10,561 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 03:07:10,567 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 03:07:10,581 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 03:07:10,607 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 03:07:10,607 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 03:07:10,607 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 03:07:10,607 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 03:07:10,607 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 03:07:10,608 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 03:07:10,608 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 03:07:10,608 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 03:07:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-09 03:07:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 03:07:10,622 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:10,623 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:10,624 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:10,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:10,628 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-09 03:07:10,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:07:10,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:10,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:10,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:10,658 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:07:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:10,705 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 03:07:10,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:10,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 03:07:10,707 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 03:07:10,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 03:07:10,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 03:07:10,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 03:07:10,719 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-09 03:07:10,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:10,732 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-09 03:07:10,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 03:07:10,732 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 03:07:10,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:10,739 INFO L225 Difference]: With dead ends: 76 [2018-12-09 03:07:10,739 INFO L226 Difference]: Without dead ends: 38 [2018-12-09 03:07:10,741 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 03:07:10,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-09 03:07:10,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-09 03:07:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 03:07:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-09 03:07:10,763 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-09 03:07:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:10,764 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-09 03:07:10,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 03:07:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-09 03:07:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 03:07:10,764 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:10,764 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:10,765 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:10,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:10,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-09 03:07:10,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 03:07:10,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:10,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:10,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 03:07:10,766 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 03:07:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 03:07:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 03:07:10,813 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 03:07:10,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:07:10 BoogieIcfgContainer [2018-12-09 03:07:10,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 03:07:10,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 03:07:10,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 03:07:10,831 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 03:07:10,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:07:10" (3/4) ... [2018-12-09 03:07:10,834 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 03:07:10,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 03:07:10,835 INFO L168 Benchmark]: Toolchain (without parser) took 686.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:10,835 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:07:10,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:10,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.57 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 03:07:10,837 INFO L168 Benchmark]: Boogie Preprocessor took 18.86 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:10,837 INFO L168 Benchmark]: RCFGBuilder took 191.15 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:10,837 INFO L168 Benchmark]: TraceAbstraction took 284.13 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:10,838 INFO L168 Benchmark]: Witness Printer took 3.05 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 03:07:10,839 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.57 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. * Boogie Preprocessor took 18.86 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.15 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 284.13 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=6442450948, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, x=0] [L29] COND TRUE j0 < 20 VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=0] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=0] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=0, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=0] [L92] RET, EXPR ceil_double(x) VAL [ceil_double(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 03:07:12,154 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 03:07:12,155 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 03:07:12,161 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 03:07:12,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 03:07:12,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 03:07:12,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 03:07:12,164 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 03:07:12,164 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 03:07:12,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 03:07:12,165 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 03:07:12,165 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 03:07:12,166 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 03:07:12,166 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 03:07:12,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 03:07:12,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 03:07:12,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 03:07:12,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 03:07:12,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 03:07:12,170 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 03:07:12,171 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 03:07:12,171 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 03:07:12,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 03:07:12,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 03:07:12,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 03:07:12,173 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 03:07:12,174 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 03:07:12,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 03:07:12,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 03:07:12,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 03:07:12,175 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 03:07:12,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 03:07:12,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 03:07:12,176 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 03:07:12,176 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 03:07:12,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 03:07:12,177 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 03:07:12,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 03:07:12,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 03:07:12,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 03:07:12,185 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 03:07:12,185 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 03:07:12,185 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 03:07:12,185 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 03:07:12,186 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 03:07:12,186 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 03:07:12,186 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 03:07:12,186 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 03:07:12,186 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 03:07:12,186 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 03:07:12,187 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 03:07:12,188 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 03:07:12,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 03:07:12,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 03:07:12,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 03:07:12,188 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 03:07:12,188 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 03:07:12,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 03:07:12,188 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 03:07:12,189 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 03:07:12,189 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 03:07:12,189 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 03:07:12,189 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 03:07:12,189 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 03:07:12,189 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 03:07:12,189 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_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2018-12-09 03:07:12,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 03:07:12,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 03:07:12,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 03:07:12,217 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 03:07:12,217 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 03:07:12,218 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-12-09 03:07:12,251 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/c63e4fafd/f734ab7acded4a5ba34629b7ec62c1a5/FLAGc9ddd3478 [2018-12-09 03:07:12,603 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 03:07:12,603 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/sv-benchmarks/c/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-12-09 03:07:12,607 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/c63e4fafd/f734ab7acded4a5ba34629b7ec62c1a5/FLAGc9ddd3478 [2018-12-09 03:07:12,977 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/data/c63e4fafd/f734ab7acded4a5ba34629b7ec62c1a5 [2018-12-09 03:07:12,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 03:07:12,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 03:07:12,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 03:07:12,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 03:07:12,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 03:07:12,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:07:12" (1/1) ... [2018-12-09 03:07:12,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3832628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:12, skipping insertion in model container [2018-12-09 03:07:12,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:07:12" (1/1) ... [2018-12-09 03:07:12,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 03:07:13,006 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 03:07:13,104 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:07:13,109 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 03:07:13,127 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 03:07:13,144 INFO L195 MainTranslator]: Completed translation [2018-12-09 03:07:13,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13 WrapperNode [2018-12-09 03:07:13,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 03:07:13,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 03:07:13,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 03:07:13,145 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 03:07:13,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 03:07:13,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 03:07:13,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 03:07:13,160 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 03:07:13,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... [2018-12-09 03:07:13,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 03:07:13,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 03:07:13,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 03:07:13,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 03:07:13,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 03:07:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 03:07:13,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 03:07:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-09 03:07:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 03:07:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 03:07:13,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 03:07:13,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 03:07:13,415 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 03:07:13,995 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 03:07:13,995 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 03:07:13,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:07:13 BoogieIcfgContainer [2018-12-09 03:07:13,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 03:07:13,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 03:07:13,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 03:07:13,998 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 03:07:13,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:07:12" (1/3) ... [2018-12-09 03:07:13,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdef83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:07:13, skipping insertion in model container [2018-12-09 03:07:13,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:07:13" (2/3) ... [2018-12-09 03:07:13,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fdef83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:07:13, skipping insertion in model container [2018-12-09 03:07:13,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:07:13" (3/3) ... [2018-12-09 03:07:14,000 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b_true-unreach-call.c [2018-12-09 03:07:14,006 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 03:07:14,010 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 03:07:14,019 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 03:07:14,035 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 03:07:14,036 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 03:07:14,036 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 03:07:14,036 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 03:07:14,036 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 03:07:14,036 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 03:07:14,036 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 03:07:14,036 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 03:07:14,036 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 03:07:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-09 03:07:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 03:07:14,048 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:14,049 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:14,050 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:14,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:14,053 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-09 03:07:14,055 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:07:14,056 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/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 03:07:14,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:14,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:14,107 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 03:07:14,107 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 03:07:14,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:14,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 03:07:14,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 03:07:14,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 03:07:14,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 03:07:14,126 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-09 03:07:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:14,138 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-09 03:07:14,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 03:07:14,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 03:07:14,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:14,145 INFO L225 Difference]: With dead ends: 76 [2018-12-09 03:07:14,145 INFO L226 Difference]: Without dead ends: 38 [2018-12-09 03:07:14,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 03:07:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-09 03:07:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-09 03:07:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 03:07:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-09 03:07:14,169 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-09 03:07:14,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:14,169 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-09 03:07:14,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 03:07:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-09 03:07:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 03:07:14,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:14,170 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:14,170 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:14,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:14,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-09 03:07:14,171 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:07:14,171 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 03:07:14,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:14,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:14,341 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 03:07:14,341 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 03:07:14,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:14,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 03:07:14,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 03:07:14,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 03:07:14,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 03:07:14,354 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 7 states. [2018-12-09 03:07:16,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:16,677 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2018-12-09 03:07:16,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 03:07:16,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 03:07:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:16,679 INFO L225 Difference]: With dead ends: 62 [2018-12-09 03:07:16,679 INFO L226 Difference]: Without dead ends: 30 [2018-12-09 03:07:16,680 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-09 03:07:16,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-09 03:07:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-12-09 03:07:16,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-09 03:07:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-12-09 03:07:16,683 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2018-12-09 03:07:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:16,683 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-12-09 03:07:16,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 03:07:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-09 03:07:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 03:07:16,684 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:16,684 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:16,684 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:16,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:16,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1067163641, now seen corresponding path program 1 times [2018-12-09 03:07:16,685 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:07:16,685 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 03:07:16,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:16,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:18,554 WARN L180 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 03:07:18,558 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 03:07:18,558 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 03:07:18,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:18,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 03:07:18,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 03:07:18,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 03:07:18,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 03:07:18,568 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2018-12-09 03:07:20,942 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 03:07:21,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:21,504 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-09 03:07:21,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 03:07:21,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-09 03:07:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:21,512 INFO L225 Difference]: With dead ends: 34 [2018-12-09 03:07:21,512 INFO L226 Difference]: Without dead ends: 25 [2018-12-09 03:07:21,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 03:07:21,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-09 03:07:21,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-09 03:07:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-09 03:07:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-12-09 03:07:21,515 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2018-12-09 03:07:21,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:21,515 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-12-09 03:07:21,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 03:07:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-12-09 03:07:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 03:07:21,516 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:21,516 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:21,516 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:21,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:21,516 INFO L82 PathProgramCache]: Analyzing trace with hash -232086029, now seen corresponding path program 1 times [2018-12-09 03:07:21,516 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:07:21,517 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 03:07:21,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:21,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:21,667 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 03:07:21,667 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 03:07:21,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:21,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 03:07:21,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 03:07:21,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 03:07:21,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 03:07:21,681 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 6 states. [2018-12-09 03:07:22,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:22,061 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-12-09 03:07:22,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 03:07:22,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-09 03:07:22,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:22,063 INFO L225 Difference]: With dead ends: 39 [2018-12-09 03:07:22,063 INFO L226 Difference]: Without dead ends: 30 [2018-12-09 03:07:22,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 03:07:22,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-09 03:07:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-12-09 03:07:22,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-09 03:07:22,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-12-09 03:07:22,066 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-12-09 03:07:22,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:22,066 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-12-09 03:07:22,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 03:07:22,066 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-12-09 03:07:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 03:07:22,067 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:22,067 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:22,067 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:22,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:22,067 INFO L82 PathProgramCache]: Analyzing trace with hash 785443165, now seen corresponding path program 1 times [2018-12-09 03:07:22,068 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:07:22,068 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 03:07:22,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:22,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:22,200 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 03:07:22,201 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 03:07:22,202 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 03:07:22,203 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 03:07:22,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-12-09 03:07:22,289 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 03:07:22,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 63 [2018-12-09 03:07:22,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-12-09 03:07:22,321 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,341 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,366 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-12-09 03:07:22,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-12-09 03:07:22,376 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,381 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,397 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-12-09 03:07:22,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-12-09 03:07:22,403 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,409 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,416 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 03:07:22,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 03:07:22,429 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-12-09 03:07:22,497 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 03:07:22,497 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 03:07:22,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:22,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 03:07:22,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 03:07:22,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 03:07:22,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 03:07:22,506 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-12-09 03:07:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:23,094 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-12-09 03:07:23,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 03:07:23,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-09 03:07:23,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:23,096 INFO L225 Difference]: With dead ends: 34 [2018-12-09 03:07:23,096 INFO L226 Difference]: Without dead ends: 25 [2018-12-09 03:07:23,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 03:07:23,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-09 03:07:23,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-09 03:07:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-09 03:07:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-12-09 03:07:23,100 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 24 [2018-12-09 03:07:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:23,100 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-12-09 03:07:23,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 03:07:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-12-09 03:07:23,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 03:07:23,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 03:07:23,102 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 03:07:23,102 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 03:07:23,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 03:07:23,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1465501535, now seen corresponding path program 1 times [2018-12-09 03:07:23,102 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 03:07:23,102 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 03:07:23,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 03:07:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 03:07:23,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 03:07:23,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-12-09 03:07:23,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2018-12-09 03:07:23,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2018-12-09 03:07:23,267 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 03:07:23,271 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 03:07:23,275 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 03:07:23,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 03:07:23,286 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:64, output treesize:34 [2018-12-09 03:07:23,463 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 03:07:23,463 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 03:07:23,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 03:07:23,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 03:07:23,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 03:07:23,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 03:07:23,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-09 03:07:23,472 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 10 states. [2018-12-09 03:07:24,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 03:07:24,119 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-12-09 03:07:24,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 03:07:24,120 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2018-12-09 03:07:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 03:07:24,121 INFO L225 Difference]: With dead ends: 25 [2018-12-09 03:07:24,121 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 03:07:24,121 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-12-09 03:07:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 03:07:24,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 03:07:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 03:07:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 03:07:24,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-09 03:07:24,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 03:07:24,122 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 03:07:24,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 03:07:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 03:07:24,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 03:07:24,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-09 03:07:24,226 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-09 03:07:24,227 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= |ceil_double_#in~x| ceil_double_~x)) [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-12-09 03:07:24,228 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 100) the Hoare annotation is: true [2018-12-09 03:07:24,228 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 100) no Hoare annotation was computed. [2018-12-09 03:07:24,228 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= (_ +zero 11 53) main_~x~0)) [2018-12-09 03:07:24,229 INFO L448 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-12-09 03:07:24,229 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-12-09 03:07:24,229 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 100) no Hoare annotation was computed. [2018-12-09 03:07:24,233 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 03:07:24,236 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 03:07:24,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:07:24 BoogieIcfgContainer [2018-12-09 03:07:24,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 03:07:24,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 03:07:24,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 03:07:24,238 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 03:07:24,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:07:13" (3/4) ... [2018-12-09 03:07:24,241 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 03:07:24,245 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 03:07:24,245 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-09 03:07:24,245 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 03:07:24,248 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-09 03:07:24,248 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 03:07:24,248 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 03:07:24,266 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x [2018-12-09 03:07:24,284 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a7307465-aa06-45a7-aa8a-5ba0d38e061f/bin-2019/utaipan/witness.graphml [2018-12-09 03:07:24,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 03:07:24,285 INFO L168 Benchmark]: Toolchain (without parser) took 11305.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 943.4 MB in the beginning and 812.4 MB in the end (delta: 131.0 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:24,285 INFO L168 Benchmark]: CDTParser took 0.12 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 03:07:24,285 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:24,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.68 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 03:07:24,286 INFO L168 Benchmark]: Boogie Preprocessor took 51.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:24,286 INFO L168 Benchmark]: RCFGBuilder took 784.32 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:24,287 INFO L168 Benchmark]: TraceAbstraction took 10241.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 819.1 MB in the end (delta: 250.7 MB). Peak memory consumption was 250.7 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:24,287 INFO L168 Benchmark]: Witness Printer took 46.14 ms. Allocated memory is still 1.1 GB. Free memory was 819.1 MB in the beginning and 812.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 03:07:24,289 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.68 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 784.32 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10241.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 819.1 MB in the end (delta: 250.7 MB). Peak memory consumption was 250.7 MB. Max. memory is 11.5 GB. * Witness Printer took 46.14 ms. Allocated memory is still 1.1 GB. Free memory was 819.1 MB in the beginning and 812.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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 - InvariantResult [Line: 22]: Loop Invariant [2018-12-09 03:07:24,291 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 03:07:24,292 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 10.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 6.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 153 SDtfs, 204 SDslu, 279 SDs, 0 SdLazy, 279 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 29 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 124 ConstructedInterpolants, 44 QuantifiedInterpolants, 26860 SizeOfPredicates, 17 NumberOfNonLiveVariables, 378 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...