./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0931_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_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 d2f16ecfa870c96b6993f19e89d203c20f11280a .............................................................................................................................................................................................................................................................................................................................. 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_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 d2f16ecfa870c96b6993f19e89d203c20f11280a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:00:27,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:00:27,614 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:00:27,620 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:00:27,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:00:27,621 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:00:27,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:00:27,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:00:27,623 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:00:27,624 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:00:27,624 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:00:27,624 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:00:27,625 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:00:27,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:00:27,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:00:27,626 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:00:27,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:00:27,627 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:00:27,628 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:00:27,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:00:27,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:00:27,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:00:27,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:00:27,632 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:00:27,632 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:00:27,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:00:27,633 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:00:27,633 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:00:27,634 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:00:27,634 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:00:27,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:00:27,635 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:00:27,635 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:00:27,635 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:00:27,636 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:00:27,636 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:00:27,636 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 03:00:27,643 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:00:27,644 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:00:27,644 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:00:27,644 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:00:27,644 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:00:27,644 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:00:27,644 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:00:27,644 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:00:27,645 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:00:27,645 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:00:27,646 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:00:27,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:00:27,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:00:27,647 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:00:27,647 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:00:27,647 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:00:27,647 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:00:27,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:00:27,647 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 03:00:27,647 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_1c3e9885-9d00-4195-934c-29733022a29e/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 -> d2f16ecfa870c96b6993f19e89d203c20f11280a [2018-12-03 03:00:27,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:00:27,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:00:27,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:00:27,674 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:00:27,674 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:00:27,675 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-03 03:00:27,710 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/8f4488072/49e7ba8801bd4be3a05d15b902919ff7/FLAGe41f48d86 [2018-12-03 03:00:28,125 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:00:28,126 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-03 03:00:28,130 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/8f4488072/49e7ba8801bd4be3a05d15b902919ff7/FLAGe41f48d86 [2018-12-03 03:00:28,138 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/8f4488072/49e7ba8801bd4be3a05d15b902919ff7 [2018-12-03 03:00:28,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:00:28,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:00:28,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:00:28,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:00:28,143 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:00:28,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f41b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28, skipping insertion in model container [2018-12-03 03:00:28,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:00:28,161 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:00:28,261 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:00:28,264 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:00:28,285 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:00:28,325 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:00:28,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28 WrapperNode [2018-12-03 03:00:28,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:00:28,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:00:28,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:00:28,326 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:00:28,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:00:28,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:00:28,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:00:28,342 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:00:28,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... [2018-12-03 03:00:28,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:00:28,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:00:28,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:00:28,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:00:28,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:00:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:00:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-03 03:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-03 03:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:00:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 03:00:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:00:28,559 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:00:28,559 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-03 03:00:28,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:00:28 BoogieIcfgContainer [2018-12-03 03:00:28,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:00:28,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:00:28,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:00:28,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:00:28,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:00:28" (1/3) ... [2018-12-03 03:00:28,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67828951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:00:28, skipping insertion in model container [2018-12-03 03:00:28,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:28" (2/3) ... [2018-12-03 03:00:28,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67828951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:00:28, skipping insertion in model container [2018-12-03 03:00:28,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:00:28" (3/3) ... [2018-12-03 03:00:28,564 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-12-03 03:00:28,569 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:00:28,574 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:00:28,582 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:00:28,599 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:00:28,600 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:00:28,600 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:00:28,600 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:00:28,600 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:00:28,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:00:28,600 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:00:28,600 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:00:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-03 03:00:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 03:00:28,613 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:28,614 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] [2018-12-03 03:00:28,615 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:28,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:28,618 INFO L82 PathProgramCache]: Analyzing trace with hash -620426535, now seen corresponding path program 1 times [2018-12-03 03:00:28,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:00:28,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:00:28,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:28,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:00:28,647 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:00:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:00:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:00:28,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:00:28,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:00:28,706 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:00:28,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:00:28,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:00:28,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:00:28,717 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-12-03 03:00:28,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:00:28,730 INFO L93 Difference]: Finished difference Result 84 states and 123 transitions. [2018-12-03 03:00:28,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:00:28,731 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-03 03:00:28,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:00:28,736 INFO L225 Difference]: With dead ends: 84 [2018-12-03 03:00:28,737 INFO L226 Difference]: Without dead ends: 42 [2018-12-03 03:00:28,738 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 [2018-12-03 03:00:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-03 03:00:28,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-03 03:00:28,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-03 03:00:28,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-12-03 03:00:28,761 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 23 [2018-12-03 03:00:28,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:00:28,761 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-12-03 03:00:28,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:00:28,761 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-12-03 03:00:28,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 03:00:28,762 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:28,762 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, 1] [2018-12-03 03:00:28,762 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:28,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:28,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1811129790, now seen corresponding path program 1 times [2018-12-03 03:00:28,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:00:28,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:00:28,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:28,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:00:28,763 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:00:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:00:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:00:28,822 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 03:00:28,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:00:28 BoogieIcfgContainer [2018-12-03 03:00:28,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:00:28,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:00:28,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:00:28,844 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:00:28,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:00:28" (3/4) ... [2018-12-03 03:00:28,846 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 03:00:28,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:00:28,847 INFO L168 Benchmark]: Toolchain (without parser) took 707.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -92.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:00:28,848 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. [2018-12-03 03:00:28,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-12-03 03:00:28,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.71 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-03 03:00:28,849 INFO L168 Benchmark]: Boogie Preprocessor took 21.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:00:28,849 INFO L168 Benchmark]: RCFGBuilder took 196.88 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-03 03:00:28,849 INFO L168 Benchmark]: TraceAbstraction took 283.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-12-03 03:00:28,850 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:00:28,851 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 184.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.71 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 196.88 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 283.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 106. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450964, \old(Lg2_log)=6442450965, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450951, \old(Lg6_log)=6442450960, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450953, \old(two25_log)=6442450957, \old(zero_log)=6442450955, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L116] float x = 1.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L21] float hfsq, f, s, z, R, w, t1, t2, dk; [L22] __int32_t k, ix, i, j; VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L30] k = 0 VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L31] COND TRUE ((ix & 0x7fffffff) == 0) [L32] return -two25_log / zero_log; VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L117] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L100] __int32_t ix; VAL [\old(x)=6442450950, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450950, zero_log=0] [L102] ieee_float_shape_type gf_u; [L103] gf_u.value = (x) [L104] EXPR gf_u.word [L104] (ix) = gf_u.word [L106] ix &= 0x7fffffff [L107] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450950, \result=0, ix=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450950, zero_log=0] [L120] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] [L120] COND TRUE !isinf_float(res) [L121] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450950, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 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=46occurred 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, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 [2018-12-03 03:00:30,239 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:00:30,240 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:00:30,246 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:00:30,246 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:00:30,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:00:30,247 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:00:30,248 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:00:30,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:00:30,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:00:30,249 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:00:30,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:00:30,250 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:00:30,251 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:00:30,251 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:00:30,251 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:00:30,252 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:00:30,253 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:00:30,254 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:00:30,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:00:30,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:00:30,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:00:30,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:00:30,257 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:00:30,257 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:00:30,257 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:00:30,258 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:00:30,258 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:00:30,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:00:30,259 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:00:30,259 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:00:30,260 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:00:30,260 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:00:30,260 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:00:30,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:00:30,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:00:30,261 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 03:00:30,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:00:30,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:00:30,269 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:00:30,269 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:00:30,269 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:00:30,269 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:00:30,270 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:00:30,270 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:00:30,270 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:00:30,270 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:00:30,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:00:30,270 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 03:00:30,271 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:00:30,272 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:00:30,272 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 03:00:30,272 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:00:30,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:00:30,272 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:00:30,272 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:00:30,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:00:30,273 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 03:00:30,273 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 03:00:30,274 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_1c3e9885-9d00-4195-934c-29733022a29e/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 -> d2f16ecfa870c96b6993f19e89d203c20f11280a [2018-12-03 03:00:30,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:00:30,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:00:30,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:00:30,306 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:00:30,307 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:00:30,307 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-03 03:00:30,350 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/fdbda0f06/7d4a1eeda6bb46849b3a79d6348c94ec/FLAG7e0881ce0 [2018-12-03 03:00:30,666 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:00:30,666 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-03 03:00:30,670 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/fdbda0f06/7d4a1eeda6bb46849b3a79d6348c94ec/FLAG7e0881ce0 [2018-12-03 03:00:31,083 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/data/fdbda0f06/7d4a1eeda6bb46849b3a79d6348c94ec [2018-12-03 03:00:31,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:00:31,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:00:31,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:00:31,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:00:31,090 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:00:31,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45734aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31, skipping insertion in model container [2018-12-03 03:00:31,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:00:31,110 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:00:31,217 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:00:31,221 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:00:31,249 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:00:31,265 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:00:31,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31 WrapperNode [2018-12-03 03:00:31,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:00:31,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:00:31,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:00:31,266 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:00:31,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:00:31,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:00:31,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:00:31,283 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:00:31,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... [2018-12-03 03:00:31,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:00:31,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:00:31,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:00:31,340 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:00:31,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:00:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:00:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-03 03:00:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:00:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-03 03:00:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:00:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 03:00:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:00:31,459 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:00:31,934 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:00:39,807 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:00:39,823 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:00:39,823 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-03 03:00:39,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:00:39 BoogieIcfgContainer [2018-12-03 03:00:39,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:00:39,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:00:39,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:00:39,826 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:00:39,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:00:31" (1/3) ... [2018-12-03 03:00:39,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f56540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:00:39, skipping insertion in model container [2018-12-03 03:00:39,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:00:31" (2/3) ... [2018-12-03 03:00:39,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f56540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:00:39, skipping insertion in model container [2018-12-03 03:00:39,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:00:39" (3/3) ... [2018-12-03 03:00:39,828 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-12-03 03:00:39,834 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:00:39,838 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:00:39,848 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:00:39,866 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 03:00:39,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:00:39,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:00:39,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:00:39,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:00:39,867 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:00:39,867 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:00:39,867 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:00:39,867 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:00:39,877 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-03 03:00:39,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-03 03:00:39,881 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:39,881 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] [2018-12-03 03:00:39,883 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:39,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:39,886 INFO L82 PathProgramCache]: Analyzing trace with hash -501312773, now seen corresponding path program 1 times [2018-12-03 03:00:39,888 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:00:39,889 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:39,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:00:40,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:00:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:00:40,113 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:00:40,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:00:40,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:00:40,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:00:40,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:00:40,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:00:40,141 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-03 03:00:40,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:00:40,155 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-12-03 03:00:40,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:00:40,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-03 03:00:40,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:00:40,161 INFO L225 Difference]: With dead ends: 82 [2018-12-03 03:00:40,162 INFO L226 Difference]: Without dead ends: 41 [2018-12-03 03:00:40,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:00:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-03 03:00:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-03 03:00:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 03:00:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-03 03:00:40,186 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 22 [2018-12-03 03:00:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:00:40,186 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-03 03:00:40,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:00:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-03 03:00:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 03:00:40,187 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:40,187 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] [2018-12-03 03:00:40,187 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:40,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:40,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1288548818, now seen corresponding path program 1 times [2018-12-03 03:00:40,188 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:00:40,188 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:40,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:00:40,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:00:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:00:40,455 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:00:40,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:00:40,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 03:00:40,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:00:40,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:00:40,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:00:40,471 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 6 states. [2018-12-03 03:00:43,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:00:43,691 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2018-12-03 03:00:43,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:00:43,692 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-03 03:00:43,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:00:43,693 INFO L225 Difference]: With dead ends: 58 [2018-12-03 03:00:43,694 INFO L226 Difference]: Without dead ends: 45 [2018-12-03 03:00:43,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 03:00:43,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-03 03:00:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-12-03 03:00:43,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 03:00:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-12-03 03:00:43,699 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 24 [2018-12-03 03:00:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:00:43,700 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-12-03 03:00:43,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:00:43,700 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-12-03 03:00:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 03:00:43,700 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:43,700 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, 1] [2018-12-03 03:00:43,701 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:43,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:43,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1497344050, now seen corresponding path program 1 times [2018-12-03 03:00:43,701 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:00:43,701 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:43,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:00:43,906 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:00:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:00:43,944 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:00:43,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:00:43,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 03:00:43,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:00:43,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:00:43,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:00:43,955 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-12-03 03:00:46,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:00:46,963 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-12-03 03:00:46,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:00:46,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-03 03:00:46,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:00:46,965 INFO L225 Difference]: With dead ends: 58 [2018-12-03 03:00:46,965 INFO L226 Difference]: Without dead ends: 45 [2018-12-03 03:00:46,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 03:00:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-03 03:00:46,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-12-03 03:00:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 03:00:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-03 03:00:46,969 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 25 [2018-12-03 03:00:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:00:46,970 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-03 03:00:46,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:00:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-03 03:00:46,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 03:00:46,970 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:46,970 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, 1, 1] [2018-12-03 03:00:46,971 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:46,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:46,971 INFO L82 PathProgramCache]: Analyzing trace with hash -553673678, now seen corresponding path program 1 times [2018-12-03 03:00:46,971 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:00:46,971 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:46,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:00:47,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:00:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:00:47,491 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:00:47,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:00:47,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-03 03:00:47,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 03:00:47,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 03:00:47,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:00:47,500 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 11 states. [2018-12-03 03:00:57,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:00:57,975 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-12-03 03:00:57,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 03:00:57,976 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-03 03:00:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:00:57,977 INFO L225 Difference]: With dead ends: 50 [2018-12-03 03:00:57,977 INFO L226 Difference]: Without dead ends: 43 [2018-12-03 03:00:57,977 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-03 03:00:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-03 03:00:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-12-03 03:00:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 03:00:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-12-03 03:00:57,982 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 26 [2018-12-03 03:00:57,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:00:57,982 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-12-03 03:00:57,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 03:00:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-12-03 03:00:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-03 03:00:57,982 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:00:57,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:00:57,983 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:00:57,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:00:57,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1873417268, now seen corresponding path program 1 times [2018-12-03 03:00:57,983 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:00:57,983 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/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 [2018-12-03 03:00:57,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:00:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:00:58,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:00:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:00:58,873 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:00:58,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:00:58,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 03:00:58,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 03:00:58,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 03:00:58,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 03:00:58,890 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 6 states. [2018-12-03 03:01:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:01:01,558 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-12-03 03:01:01,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 03:01:01,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-12-03 03:01:01,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:01:01,560 INFO L225 Difference]: With dead ends: 43 [2018-12-03 03:01:01,560 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 03:01:01,560 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-03 03:01:01,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 03:01:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 03:01:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 03:01:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 03:01:01,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-12-03 03:01:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:01:01,561 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 03:01:01,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 03:01:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 03:01:01,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 03:01:01,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 03:01:01,635 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 99 108) the Hoare annotation is: true [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 99 108) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 99 108) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L444 ceAbstractionStarter]: At program point L101-2(lines 101 105) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point L101-3(lines 101 105) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-12-03 03:01:01,635 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L444 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: (and (exists ((__ieee754_logf_~ix~0 (_ BitVec 32))) (and (bvslt __ieee754_logf_~ix~0 (_ bv2139095040 32)) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0)))) [2018-12-03 03:01:01,636 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (= __ieee754_logf_~x |__ieee754_logf_#in~x|) [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L444 ceAbstractionStarter]: At program point L49-2(lines 49 53) the Hoare annotation is: (exists ((__ieee754_logf_~ix~0 (_ BitVec 32))) (and (bvslt __ieee754_logf_~ix~0 (_ bv2139095040 32)) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-12-03 03:01:01,636 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 03:01:01,637 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-12-03 03:01:01,637 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 110 125) the Hoare annotation is: true [2018-12-03 03:01:01,637 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 110 125) no Hoare annotation was computed. [2018-12-03 03:01:01,638 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-03 03:01:01,638 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 110 125) no Hoare annotation was computed. [2018-12-03 03:01:01,638 INFO L444 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-03 03:01:01,638 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 123) no Hoare annotation was computed. [2018-12-03 03:01:01,638 INFO L444 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-12-03 03:01:01,638 INFO L448 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-12-03 03:01:01,645 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,649 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,649 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:01:01 BoogieIcfgContainer [2018-12-03 03:01:01,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:01:01,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:01:01,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:01:01,651 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:01:01,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:00:39" (3/4) ... [2018-12-03 03:01:01,654 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 03:01:01,658 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-03 03:01:01,659 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 03:01:01,659 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-12-03 03:01:01,659 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 03:01:01,662 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-12-03 03:01:01,662 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-03 03:01:01,663 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 03:01:01,663 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 03:01:01,680 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-03 03:01:01,680 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 03:01:01,680 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) && \old(x) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2018-12-03 03:01:01,680 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) [2018-12-03 03:01:01,700 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1c3e9885-9d00-4195-934c-29733022a29e/bin-2019/utaipan/witness.graphml [2018-12-03 03:01:01,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:01:01,701 INFO L168 Benchmark]: Toolchain (without parser) took 30614.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 942.0 MB in the beginning and 894.1 MB in the end (delta: 48.0 MB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. [2018-12-03 03:01:01,701 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:01:01,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.94 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:01:01,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.51 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:01:01,702 INFO L168 Benchmark]: Boogie Preprocessor took 56.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:01:01,702 INFO L168 Benchmark]: RCFGBuilder took 8483.70 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-12-03 03:01:01,702 INFO L168 Benchmark]: TraceAbstraction took 21826.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.1 MB in the end (delta: 194.0 MB). Peak memory consumption was 194.0 MB. Max. memory is 11.5 GB. [2018-12-03 03:01:01,703 INFO L168 Benchmark]: Witness Printer took 48.96 ms. Allocated memory is still 1.2 GB. Free memory is still 894.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:01:01,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.94 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 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 16.51 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8483.70 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21826.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.1 MB in the end (delta: 194.0 MB). Peak memory consumption was 194.0 MB. Max. memory is 11.5 GB. * Witness Printer took 48.96 ms. Allocated memory is still 1.2 GB. Free memory is still 894.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 101]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 49]: Loop Invariant [2018-12-03 03:01:01,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,706 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 40]: Loop Invariant [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,707 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-03 03:01:01,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_logf_~ix~0 : bv32 :: ~bvslt32(__ieee754_logf_~ix~0, 2139095040bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_logf_~ix~0[31:31], __ieee754_logf_~ix~0[30:23], __ieee754_logf_~ix~0[22:0])) && \old(x) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. SAFE Result, 21.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 19.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 206 SDtfs, 78 SDslu, 696 SDs, 0 SdLazy, 212 SolverSat, 11 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 26 NumberOfFragments, 83 HoareAnnotationTreeSize, 20 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 16 QuantifiedInterpolants, 16449 SizeOfPredicates, 14 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...