./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/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 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................................ 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_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/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 55e25fd47a6133e138b684ec17fad2c015ceccf7 ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:00:11,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:00:11,517 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:00:11,525 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:00:11,525 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:00:11,526 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:00:11,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:00:11,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:00:11,531 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:00:11,531 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:00:11,533 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:00:11,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:00:11,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:00:11,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:00:11,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:00:11,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:00:11,537 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:00:11,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:00:11,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:00:11,542 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:00:11,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:00:11,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:00:11,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:00:11,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:00:11,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:00:11,547 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:00:11,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:00:11,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:00:11,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:00:11,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:00:11,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:00:11,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:00:11,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:00:11,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:00:11,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:00:11,554 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:00:11,554 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:00:11,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:00:11,565 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:00:11,566 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:00:11,566 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:00:11,566 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:00:11,566 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:00:11,567 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:00:11,567 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:00:11,567 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:00:11,567 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:00:11,567 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:00:11,568 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:00:11,568 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:00:11,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:00:11,570 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:00:11,570 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:00:11,570 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:00:11,570 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:00:11,570 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:00:11,571 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:00:11,571 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:00:11,571 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:00:11,571 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:00:11,571 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:00:11,571 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:00:11,571 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:00:11,572 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:00:11,572 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:00:11,572 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:00:11,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:00:11,572 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:00:11,572 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:00:11,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:00:11,573 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:00:11,573 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:00:11,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:00:11,573 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:00:11,573 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_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-11-18 16:00:11,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:00:11,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:00:11,609 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:00:11,610 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:00:11,610 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:00:11,610 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-18 16:00:11,651 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/d3d53f291/f9a1a6a8ad6e4ad79cede775a864c0f6/FLAG5c0c98e5e [2018-11-18 16:00:12,077 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:00:12,078 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-18 16:00:12,083 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/d3d53f291/f9a1a6a8ad6e4ad79cede775a864c0f6/FLAG5c0c98e5e [2018-11-18 16:00:12,095 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/d3d53f291/f9a1a6a8ad6e4ad79cede775a864c0f6 [2018-11-18 16:00:12,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:00:12,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:00:12,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:00:12,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:00:12,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:00:12,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7072fde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12, skipping insertion in model container [2018-11-18 16:00:12,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:00:12,132 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:00:12,294 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:00:12,296 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:00:12,315 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:00:12,331 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:00:12,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12 WrapperNode [2018-11-18 16:00:12,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:00:12,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:00:12,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:00:12,332 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:00:12,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:00:12,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:00:12,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:00:12,352 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:00:12,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... [2018-11-18 16:00:12,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:00:12,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:00:12,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:00:12,446 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:00:12,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:00:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:00:12,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:00:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:00:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 16:00:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 16:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:00:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-18 16:00:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-18 16:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:00:12,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:00:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:00:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:00:12,862 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:00:12,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:12 BoogieIcfgContainer [2018-11-18 16:00:12,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:00:12,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:00:12,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:00:12,866 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:00:12,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:00:12" (1/3) ... [2018-11-18 16:00:12,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341ff7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:00:12, skipping insertion in model container [2018-11-18 16:00:12,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:12" (2/3) ... [2018-11-18 16:00:12,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341ff7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:00:12, skipping insertion in model container [2018-11-18 16:00:12,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:12" (3/3) ... [2018-11-18 16:00:12,869 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-11-18 16:00:12,883 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:00:12,888 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:00:12,901 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:00:12,925 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:00:12,925 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:00:12,925 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:00:12,925 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:00:12,925 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:00:12,926 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:00:12,926 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:00:12,926 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:00:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-18 16:00:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 16:00:12,945 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:00:12,945 INFO L375 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] [2018-11-18 16:00:12,947 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:00:12,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:12,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1938672589, now seen corresponding path program 1 times [2018-11-18 16:00:12,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:00:12,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:12,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:12,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:12,993 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:00:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:00:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:00:13,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:00:13,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:00:13,059 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:00:13,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:00:13,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:00:13,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:00:13,076 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-18 16:00:13,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:00:13,094 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-18 16:00:13,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:00:13,095 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 16:00:13,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:00:13,102 INFO L225 Difference]: With dead ends: 66 [2018-11-18 16:00:13,102 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 16:00:13,105 INFO L604 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 [2018-11-18 16:00:13,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 16:00:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 16:00:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 16:00:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-18 16:00:13,141 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2018-11-18 16:00:13,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:00:13,142 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-18 16:00:13,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:00:13,142 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-18 16:00:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 16:00:13,142 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:00:13,143 INFO L375 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, 1, 1] [2018-11-18 16:00:13,143 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:00:13,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:13,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1201747331, now seen corresponding path program 1 times [2018-11-18 16:00:13,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:00:13,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:13,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:13,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:13,146 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:00:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:13,228 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:00:13,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:00:13 BoogieIcfgContainer [2018-11-18 16:00:13,247 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:00:13,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:00:13,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:00:13,248 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:00:13,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:12" (3/4) ... [2018-11-18 16:00:13,251 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:00:13,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:00:13,252 INFO L168 Benchmark]: Toolchain (without parser) took 1154.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 958.4 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:13,253 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:13,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.11 ms. Allocated memory is still 1.0 GB. Free memory was 958.4 MB in the beginning and 944.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:13,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:13,255 INFO L168 Benchmark]: Boogie Preprocessor took 93.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.9 MB in the beginning and 1.2 GB in the end (delta: -205.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:13,255 INFO L168 Benchmark]: RCFGBuilder took 416.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:13,256 INFO L168 Benchmark]: TraceAbstraction took 383.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:13,256 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:13,259 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.11 ms. Allocated memory is still 1.0 GB. Free memory was 958.4 MB in the beginning and 944.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.74 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 944.9 MB in the beginning and 1.2 GB in the end (delta: -205.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 416.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 383.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.95 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: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L73] float x = -1.0f / 0.0f; [L74] CALL, EXPR round_float(x) VAL [\old(x)=6442450950] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=6442450950, x=6442450950] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (w) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=6442450950, w=2147483652, x=6442450950] [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450950, exponent_less_127=128, w=2147483652, x=6442450950] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450950, exponent_less_127=128, w=2147483652, x=6442450950] [L40] COND TRUE exponent_less_127 == 128 [L42] RET return x + x; VAL [\old(x)=6442450950, exponent_less_127=128, w=2147483652, x=6442450950] [L74] EXPR round_float(x) VAL [round_float(x)=6442450946, x=6442450950] [L74] float res = round_float(x); [L77] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450946] [L56] __int32_t ix; VAL [\old(x)=6442450946, x=6442450946] [L58] FCALL ieee_float_shape_type gf_u; [L59] FCALL gf_u.value = (x) [L60] EXPR, FCALL gf_u.word [L60] (ix) = gf_u.word [L61] COND FALSE !(0) VAL [\old(x)=6442450946, ix=2147483647, x=6442450946] [L62] ix &= 0x7fffffff [L63] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450946, \result=0, ix=0, x=6442450946] [L77] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450946, x=6442450950] [L77] COND TRUE !isinf_float(res) [L78] __VERIFIER_error() VAL [res=6442450946, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 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=37occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 0.1.23-5842f4b [2018-11-18 16:00:15,026 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:00:15,027 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:00:15,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:00:15,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:00:15,035 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:00:15,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:00:15,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:00:15,038 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:00:15,038 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:00:15,038 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:00:15,039 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:00:15,039 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:00:15,040 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:00:15,041 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:00:15,041 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:00:15,042 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:00:15,043 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:00:15,044 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:00:15,045 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:00:15,046 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:00:15,046 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:00:15,048 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:00:15,048 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:00:15,048 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:00:15,049 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:00:15,050 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:00:15,050 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:00:15,051 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:00:15,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:00:15,052 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:00:15,052 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:00:15,052 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:00:15,053 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:00:15,053 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:00:15,054 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:00:15,054 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:00:15,063 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:00:15,064 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:00:15,064 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:00:15,064 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:00:15,065 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:00:15,065 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:00:15,065 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:00:15,065 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:00:15,065 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:00:15,065 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:00:15,066 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:00:15,066 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:00:15,066 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:00:15,066 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:00:15,066 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:00:15,067 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:00:15,068 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:00:15,068 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:00:15,068 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:00:15,068 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:00:15,068 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:00:15,068 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:00:15,068 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:00:15,069 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:00:15,069 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:00:15,069 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:00:15,069 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:00:15,069 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:00:15,069 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:00:15,069 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_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-11-18 16:00:15,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:00:15,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:00:15,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:00:15,113 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:00:15,113 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:00:15,114 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-18 16:00:15,158 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/59c1c5994/bda207f88b4a41fabb4e2b24ce77fd45/FLAGada605175 [2018-11-18 16:00:15,520 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:00:15,521 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/sv-benchmarks/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-18 16:00:15,525 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/59c1c5994/bda207f88b4a41fabb4e2b24ce77fd45/FLAGada605175 [2018-11-18 16:00:15,533 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/data/59c1c5994/bda207f88b4a41fabb4e2b24ce77fd45 [2018-11-18 16:00:15,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:00:15,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:00:15,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:00:15,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:00:15,540 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:00:15,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b348b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15, skipping insertion in model container [2018-11-18 16:00:15,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:00:15,561 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:00:15,713 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:00:15,717 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:00:15,738 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:00:15,756 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:00:15,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15 WrapperNode [2018-11-18 16:00:15,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:00:15,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:00:15,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:00:15,758 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:00:15,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:00:15,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:00:15,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:00:15,778 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:00:15,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... [2018-11-18 16:00:15,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:00:15,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:00:15,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:00:15,811 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:00:15,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:00:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:00:15,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:00:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 16:00:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 16:00:15,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 16:00:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:00:15,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:00:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:00:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:00:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-18 16:00:15,925 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-18 16:00:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:00:15,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:00:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:00:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:00:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:00:16,158 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:00:16,203 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:00:16,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:16 BoogieIcfgContainer [2018-11-18 16:00:16,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:00:16,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:00:16,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:00:16,207 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:00:16,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:00:15" (1/3) ... [2018-11-18 16:00:16,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:00:16, skipping insertion in model container [2018-11-18 16:00:16,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:15" (2/3) ... [2018-11-18 16:00:16,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5fc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:00:16, skipping insertion in model container [2018-11-18 16:00:16,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:16" (3/3) ... [2018-11-18 16:00:16,210 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-11-18 16:00:16,216 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:00:16,220 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:00:16,229 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:00:16,248 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:00:16,248 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:00:16,248 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:00:16,248 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:00:16,248 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:00:16,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:00:16,248 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:00:16,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:00:16,248 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:00:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-18 16:00:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 16:00:16,265 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:00:16,265 INFO L375 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] [2018-11-18 16:00:16,267 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:00:16,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:16,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1479900989, now seen corresponding path program 1 times [2018-11-18 16:00:16,273 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:00:16,273 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 16:00:16,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:00:16,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:00:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:00:16,348 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:00:16,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:00:16,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:00:16,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:00:16,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:00:16,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:00:16,371 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-18 16:00:16,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:00:16,386 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-18 16:00:16,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:00:16,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 16:00:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:00:16,392 INFO L225 Difference]: With dead ends: 64 [2018-11-18 16:00:16,393 INFO L226 Difference]: Without dead ends: 32 [2018-11-18 16:00:16,395 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:00:16,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-18 16:00:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-18 16:00:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 16:00:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-18 16:00:16,424 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2018-11-18 16:00:16,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:00:16,425 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-18 16:00:16,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:00:16,425 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-18 16:00:16,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 16:00:16,426 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:00:16,426 INFO L375 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, 1] [2018-11-18 16:00:16,426 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:00:16,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:16,427 INFO L82 PathProgramCache]: Analyzing trace with hash -691551121, now seen corresponding path program 1 times [2018-11-18 16:00:16,427 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:00:16,427 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-18 16:00:16,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 16:00:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:00:16,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:00:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:00:17,230 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:00:17,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:00:17,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 16:00:17,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 16:00:17,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 16:00:17,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:00:17,254 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2018-11-18 16:00:17,762 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 16:00:18,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:00:18,791 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-11-18 16:00:18,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 16:00:18,792 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-18 16:00:18,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:00:18,794 INFO L225 Difference]: With dead ends: 41 [2018-11-18 16:00:18,794 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 16:00:18,795 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 16:00:18,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 16:00:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-11-18 16:00:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 16:00:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-11-18 16:00:18,802 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2018-11-18 16:00:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:00:18,802 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-11-18 16:00:18,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 16:00:18,803 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-11-18 16:00:18,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 16:00:18,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:00:18,804 INFO L375 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, 1] [2018-11-18 16:00:18,804 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:00:18,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:18,804 INFO L82 PathProgramCache]: Analyzing trace with hash -984954128, now seen corresponding path program 1 times [2018-11-18 16:00:18,805 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:00:18,805 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/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 [2018-11-18 16:00:18,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:00:18,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:00:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:00:19,055 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:00:19,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:00:19,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:00:19,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:00:19,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:00:19,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:00:19,070 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2018-11-18 16:00:19,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:00:19,286 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-11-18 16:00:19,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:00:19,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 16:00:19,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:00:19,287 INFO L225 Difference]: With dead ends: 34 [2018-11-18 16:00:19,287 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:00:19,288 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 16:00:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:00:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:00:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:00:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:00:19,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-18 16:00:19,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:00:19,289 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:00:19,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:00:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:00:19,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:00:19,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:00:19,386 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-11-18 16:00:19,386 INFO L421 ceAbstractionStarter]: At program point L57-3(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-18 16:00:19,386 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-11-18 16:00:19,386 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-11-18 16:00:19,386 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-11-18 16:00:19,387 INFO L425 ceAbstractionStarter]: For program point L46-2(lines 11 52) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 16:00:19,388 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-18 16:00:19,388 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 16:00:19,389 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:00:19,389 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:00:19,389 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:00:19,389 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:00:19,389 INFO L425 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-11-18 16:00:19,389 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 65 83) the Hoare annotation is: true [2018-11-18 16:00:19,389 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= main_~x~0 .cse0))) [2018-11-18 16:00:19,389 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 65 83) no Hoare annotation was computed. [2018-11-18 16:00:19,390 INFO L425 ceAbstractionStarter]: For program point L77-1(lines 77 80) no Hoare annotation was computed. [2018-11-18 16:00:19,390 INFO L421 ceAbstractionStarter]: At program point L74(line 74) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-18 16:00:19,390 INFO L425 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-11-18 16:00:19,390 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 65 83) no Hoare annotation was computed. [2018-11-18 16:00:19,390 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 78) no Hoare annotation was computed. [2018-11-18 16:00:19,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:00:19 BoogieIcfgContainer [2018-11-18 16:00:19,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:00:19,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:00:19,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:00:19,400 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:00:19,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:16" (3/4) ... [2018-11-18 16:00:19,402 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:00:19,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-18 16:00:19,406 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:00:19,407 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-18 16:00:19,407 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:00:19,410 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 16:00:19,410 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 16:00:19,411 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:00:19,433 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 16:00:19,433 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:00:19,449 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fed5120a-a3da-4387-ac9a-11f09d0b9cb8/bin-2019/utaipan/witness.graphml [2018-11-18 16:00:19,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:00:19,450 INFO L168 Benchmark]: Toolchain (without parser) took 3914.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.9 MB in the beginning and 985.2 MB in the end (delta: -33.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:19,450 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:19,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.39 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:19,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.32 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:19,451 INFO L168 Benchmark]: Boogie Preprocessor took 32.18 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:19,451 INFO L168 Benchmark]: RCFGBuilder took 393.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:19,452 INFO L168 Benchmark]: TraceAbstraction took 3194.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.3 MB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:00:19,452 INFO L168 Benchmark]: Witness Printer took 49.33 ms. Allocated memory is still 1.2 GB. Free memory is still 985.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:00:19,453 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 220.39 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 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 20.32 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.18 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 393.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3194.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 992.3 MB in the end (delta: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.33 ms. Allocated memory is still 1.2 GB. Free memory is still 985.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 53 SDslu, 256 SDs, 0 SdLazy, 137 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 49 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 6 QuantifiedInterpolants, 8260 SizeOfPredicates, 9 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...