./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_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/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_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/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_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/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_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/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 [2018-12-09 18:55:14,999 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:55:15,000 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:55:15,006 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:55:15,007 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:55:15,007 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:55:15,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:55:15,009 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:55:15,009 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:55:15,010 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:55:15,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:55:15,010 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:55:15,011 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:55:15,011 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:55:15,012 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:55:15,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:55:15,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:55:15,013 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:55:15,014 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:55:15,015 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:55:15,016 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:55:15,016 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:55:15,018 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:55:15,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:55:15,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:55:15,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:55:15,019 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:55:15,019 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:55:15,020 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:55:15,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:55:15,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:55:15,021 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:55:15,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:55:15,021 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:55:15,021 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:55:15,022 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:55:15,022 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:55:15,029 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:55:15,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:55:15,030 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:55:15,030 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:55:15,030 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:55:15,031 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:55:15,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:55:15,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:55:15,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:55:15,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:55:15,033 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:55:15,033 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_39040c1a-589c-4118-bd0b-8f9cde6cb693/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 [2018-12-09 18:55:15,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:55:15,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:55:15,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:55:15,062 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:55:15,063 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:55:15,063 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-09 18:55:15,100 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/5f2c4ed9c/85582a9937d34fba9a4ed0fbb83bf05a/FLAG12d85ab7e [2018-12-09 18:55:15,527 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:55:15,527 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-09 18:55:15,531 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/5f2c4ed9c/85582a9937d34fba9a4ed0fbb83bf05a/FLAG12d85ab7e [2018-12-09 18:55:15,539 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/5f2c4ed9c/85582a9937d34fba9a4ed0fbb83bf05a [2018-12-09 18:55:15,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:55:15,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:55:15,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:55:15,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:55:15,545 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:55:15,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e9f86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15, skipping insertion in model container [2018-12-09 18:55:15,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:55:15,564 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:55:15,672 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:55:15,674 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:55:15,695 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:55:15,736 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:55:15,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15 WrapperNode [2018-12-09 18:55:15,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:55:15,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:55:15,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:55:15,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:55:15,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:55:15,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:55:15,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:55:15,752 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:55:15,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... [2018-12-09 18:55:15,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:55:15,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:55:15,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:55:15,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:55:15,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:55:15,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 18:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 18:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-09 18:55:15,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-09 18:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:55:15,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:55:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 18:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-09 18:55:15,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-09 18:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:55:15,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 18:55:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:55:15,952 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:55:15,952 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 18:55:15,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:15 BoogieIcfgContainer [2018-12-09 18:55:15,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:55:15,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:55:15,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:55:15,954 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:55:15,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:55:15" (1/3) ... [2018-12-09 18:55:15,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7224c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:55:15, skipping insertion in model container [2018-12-09 18:55:15,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:15" (2/3) ... [2018-12-09 18:55:15,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7224c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:55:15, skipping insertion in model container [2018-12-09 18:55:15,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:15" (3/3) ... [2018-12-09 18:55:15,956 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-12-09 18:55:15,964 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:55:15,970 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:55:15,979 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:55:16,001 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:55:16,001 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:55:16,002 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:55:16,002 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:55:16,002 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:55:16,002 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:55:16,002 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:55:16,002 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:55:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-09 18:55:16,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 18:55:16,019 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:16,019 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:55:16,021 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:16,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:16,026 INFO L82 PathProgramCache]: Analyzing trace with hash -620426535, now seen corresponding path program 1 times [2018-12-09 18:55:16,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:16,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:16,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:16,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:16,056 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:55:16,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:16,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:55:16,130 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:55:16,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:55:16,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:55:16,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:55:16,141 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-12-09 18:55:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:16,154 INFO L93 Difference]: Finished difference Result 84 states and 123 transitions. [2018-12-09 18:55:16,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:55:16,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-09 18:55:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:16,161 INFO L225 Difference]: With dead ends: 84 [2018-12-09 18:55:16,161 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 18:55:16,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:55:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 18:55:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-09 18:55:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 18:55:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-12-09 18:55:16,185 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 23 [2018-12-09 18:55:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:16,185 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-12-09 18:55:16,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:55:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-12-09 18:55:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 18:55:16,186 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:16,186 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] [2018-12-09 18:55:16,186 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:16,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1811129790, now seen corresponding path program 1 times [2018-12-09 18:55:16,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:16,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:16,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:16,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:16,188 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:55:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:55:16,251 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 18:55:16,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:55:16 BoogieIcfgContainer [2018-12-09 18:55:16,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:55:16,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:55:16,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:55:16,274 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:55:16,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:15" (3/4) ... [2018-12-09 18:55:16,276 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 18:55:16,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:55:16,276 INFO L168 Benchmark]: Toolchain (without parser) took 735.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -97.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:16,277 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:16,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:16,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:16,278 INFO L168 Benchmark]: Boogie Preprocessor took 20.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:16,279 INFO L168 Benchmark]: RCFGBuilder took 179.47 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:16,279 INFO L168 Benchmark]: TraceAbstraction took 320.60 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:16,279 INFO L168 Benchmark]: Witness Printer took 2.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:16,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 179.47 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 320.60 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 [2018-12-09 18:55:17,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:55:17,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:55:17,568 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:55:17,569 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:55:17,569 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:55:17,570 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:55:17,570 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:55:17,571 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:55:17,572 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:55:17,572 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:55:17,572 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:55:17,573 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:55:17,573 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:55:17,574 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:55:17,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:55:17,574 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:55:17,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:55:17,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:55:17,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:55:17,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:55:17,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:55:17,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:55:17,579 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:55:17,579 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:55:17,579 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:55:17,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:55:17,580 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:55:17,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:55:17,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:55:17,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:55:17,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:55:17,582 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:55:17,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:55:17,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:55:17,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:55:17,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 18:55:17,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:55:17,590 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:55:17,590 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:55:17,591 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:55:17,591 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:55:17,591 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:55:17,591 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:55:17,591 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:55:17,591 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:55:17,591 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:55:17,591 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:55:17,592 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:55:17,593 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:55:17,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 18:55:17,593 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:55:17,594 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 18:55:17,594 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 18:55:17,594 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_39040c1a-589c-4118-bd0b-8f9cde6cb693/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 [2018-12-09 18:55:17,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:55:17,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:55:17,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:55:17,621 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:55:17,621 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:55:17,621 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-09 18:55:17,656 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/406ea5bed/2cddb9b95d9f4aeb94bf5f89a4bd38bf/FLAG32797cff6 [2018-12-09 18:55:18,078 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:55:18,078 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/sv-benchmarks/c/float-newlib/float_req_bl_0931_true-unreach-call.c [2018-12-09 18:55:18,084 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/406ea5bed/2cddb9b95d9f4aeb94bf5f89a4bd38bf/FLAG32797cff6 [2018-12-09 18:55:18,092 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/data/406ea5bed/2cddb9b95d9f4aeb94bf5f89a4bd38bf [2018-12-09 18:55:18,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:55:18,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:55:18,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:55:18,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:55:18,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:55:18,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18, skipping insertion in model container [2018-12-09 18:55:18,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:55:18,119 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:55:18,233 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:55:18,237 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:55:18,262 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:55:18,278 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:55:18,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18 WrapperNode [2018-12-09 18:55:18,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:55:18,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:55:18,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:55:18,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:55:18,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:55:18,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:55:18,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:55:18,296 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:55:18,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... [2018-12-09 18:55:18,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:55:18,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:55:18,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:55:18,359 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:55:18,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:55:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:55:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:55:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-09 18:55:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:55:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-09 18:55:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:55:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 18:55:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:55:18,487 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:55:18,967 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:55:28,214 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:55:28,231 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:55:28,231 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 18:55:28,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:28 BoogieIcfgContainer [2018-12-09 18:55:28,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:55:28,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:55:28,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:55:28,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:55:28,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:55:18" (1/3) ... [2018-12-09 18:55:28,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1a50ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:55:28, skipping insertion in model container [2018-12-09 18:55:28,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:18" (2/3) ... [2018-12-09 18:55:28,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1a50ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:55:28, skipping insertion in model container [2018-12-09 18:55:28,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:28" (3/3) ... [2018-12-09 18:55:28,235 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931_true-unreach-call.c [2018-12-09 18:55:28,240 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:55:28,245 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:55:28,253 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:55:28,269 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 18:55:28,269 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:55:28,270 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:55:28,270 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:55:28,270 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:55:28,270 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:55:28,270 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:55:28,270 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:55:28,270 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:55:28,279 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-09 18:55:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 18:55:28,283 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:28,283 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:55:28,285 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:28,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:28,288 INFO L82 PathProgramCache]: Analyzing trace with hash -501312773, now seen corresponding path program 1 times [2018-12-09 18:55:28,290 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:55:28,290 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 18:55:28,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:28,496 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:55:28,507 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:55:28,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:28,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:55:28,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:55:28,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:55:28,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:55:28,534 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-09 18:55:28,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:28,547 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-12-09 18:55:28,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:55:28,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 18:55:28,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:28,554 INFO L225 Difference]: With dead ends: 82 [2018-12-09 18:55:28,554 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 18:55:28,556 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 [2018-12-09 18:55:28,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 18:55:28,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 18:55:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 18:55:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-09 18:55:28,579 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 22 [2018-12-09 18:55:28,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:28,579 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-09 18:55:28,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:55:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-09 18:55:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 18:55:28,580 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:28,580 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:55:28,580 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:28,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:28,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1288548818, now seen corresponding path program 1 times [2018-12-09 18:55:28,581 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:55:28,581 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 18:55:28,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:28,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:55:28,849 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:55:28,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:28,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:55:28,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:55:28,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:55:28,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:55:28,860 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 6 states. [2018-12-09 18:55:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:32,762 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2018-12-09 18:55:32,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:55:32,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-09 18:55:32,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:32,765 INFO L225 Difference]: With dead ends: 58 [2018-12-09 18:55:32,765 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 18:55:32,766 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 [2018-12-09 18:55:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 18:55:32,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-12-09 18:55:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 18:55:32,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-12-09 18:55:32,773 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 24 [2018-12-09 18:55:32,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:32,773 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-12-09 18:55:32,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:55:32,773 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-12-09 18:55:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 18:55:32,774 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:32,774 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] [2018-12-09 18:55:32,775 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:32,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:32,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1497344050, now seen corresponding path program 1 times [2018-12-09 18:55:32,775 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:55:32,775 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 18:55:32,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:32,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:33,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:55:33,034 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:55:33,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:33,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:55:33,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:55:33,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:55:33,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:55:33,044 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-12-09 18:55:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:35,862 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-12-09 18:55:35,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:55:35,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-09 18:55:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:35,864 INFO L225 Difference]: With dead ends: 58 [2018-12-09 18:55:35,864 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 18:55:35,865 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 [2018-12-09 18:55:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 18:55:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-12-09 18:55:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 18:55:35,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-09 18:55:35,869 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 25 [2018-12-09 18:55:35,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:35,869 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-09 18:55:35,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:55:35,869 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-09 18:55:35,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 18:55:35,870 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:35,870 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] [2018-12-09 18:55:35,870 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:35,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:35,871 INFO L82 PathProgramCache]: Analyzing trace with hash -553673678, now seen corresponding path program 1 times [2018-12-09 18:55:35,871 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:55:35,871 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 18:55:35,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:35,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:55:36,488 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:55:36,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:36,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 18:55:36,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 18:55:36,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 18:55:36,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 18:55:36,496 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 11 states. [2018-12-09 18:55:36,933 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 18:55:47,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:47,202 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-12-09 18:55:47,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 18:55:47,203 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-09 18:55:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:47,203 INFO L225 Difference]: With dead ends: 50 [2018-12-09 18:55:47,204 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 18:55:47,204 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-09 18:55:47,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 18:55:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-12-09 18:55:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 18:55:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-12-09 18:55:47,209 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 26 [2018-12-09 18:55:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:47,209 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-12-09 18:55:47,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 18:55:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-12-09 18:55:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-09 18:55:47,210 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:47,210 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] [2018-12-09 18:55:47,210 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:47,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:47,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1873417268, now seen corresponding path program 1 times [2018-12-09 18:55:47,210 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:55:47,210 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 18:55:47,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:48,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:55:48,125 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:55:48,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:48,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:55:48,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:55:48,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:55:48,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:55:48,142 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 6 states. [2018-12-09 18:55:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:50,782 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-12-09 18:55:50,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 18:55:50,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-12-09 18:55:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:50,783 INFO L225 Difference]: With dead ends: 43 [2018-12-09 18:55:50,784 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:55:50,784 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 [2018-12-09 18:55:50,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:55:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:55:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:55:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:55:50,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-12-09 18:55:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:50,785 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:55:50,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:55:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:55:50,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:55:50,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 18:55:50,849 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 99 108) the Hoare annotation is: true [2018-12-09 18:55:50,849 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 99 108) no Hoare annotation was computed. [2018-12-09 18:55:50,849 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 99 108) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L444 ceAbstractionStarter]: At program point L101-2(lines 101 105) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point L101-3(lines 101 105) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-12-09 18:55:50,850 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)))) [2018-12-09 18:55:50,850 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-12-09 18:55:50,850 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (= __ieee754_logf_~x |__ieee754_logf_#in~x|) [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-12-09 18:55:50,851 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))))) [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-12-09 18:55:50,851 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 18:55:50,852 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 110 125) the Hoare annotation is: true [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 110 125) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-09 18:55:50,852 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 110 125) no Hoare annotation was computed. [2018-12-09 18:55:50,852 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))) [2018-12-09 18:55:50,853 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 123) no Hoare annotation was computed. [2018-12-09 18:55:50,853 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))) [2018-12-09 18:55:50,853 INFO L448 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-12-09 18:55:50,860 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,860 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,860 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,860 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,861 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,861 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,861 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,861 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,862 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,862 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,862 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,862 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,862 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,863 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,863 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,863 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:55:50 BoogieIcfgContainer [2018-12-09 18:55:50,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:55:50,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:55:50,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:55:50,865 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:55:50,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:28" (3/4) ... [2018-12-09 18:55:50,867 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:55:50,871 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-09 18:55:50,871 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 18:55:50,871 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-12-09 18:55:50,871 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 18:55:50,875 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-12-09 18:55:50,875 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 18:55:50,875 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 18:55:50,875 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 18:55:50,891 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 18:55:50,891 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 18:55:50,892 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]) [2018-12-09 18:55:50,892 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])) [2018-12-09 18:55:50,907 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_39040c1a-589c-4118-bd0b-8f9cde6cb693/bin-2019/utaipan/witness.graphml [2018-12-09 18:55:50,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:55:50,907 INFO L168 Benchmark]: Toolchain (without parser) took 32813.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.7 MB in the beginning and 893.7 MB in the end (delta: 51.0 MB). Peak memory consumption was 183.6 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:50,908 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:50,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.58 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:50,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.64 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:50,908 INFO L168 Benchmark]: Boogie Preprocessor took 63.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:50,909 INFO L168 Benchmark]: RCFGBuilder took 9872.18 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:50,909 INFO L168 Benchmark]: TraceAbstraction took 22632.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.5 MB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:50,909 INFO L168 Benchmark]: Witness Printer took 42.46 ms. Allocated memory is still 1.2 GB. Free memory is still 893.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:50,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.58 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 16.64 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9872.18 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22632.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.5 MB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.46 ms. Allocated memory is still 1.2 GB. Free memory is still 893.7 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 [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,913 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 [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,914 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~0,QUANTIFIED] [2018-12-09 18:55:50,915 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, 22.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 20.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 206 SDtfs, 78 SDslu, 696 SDs, 0 SdLazy, 211 SolverSat, 11 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s 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, 0.8s 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...