./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73dc70fc086318c728ead326eb8ef835fee9f9a2 ............................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73dc70fc086318c728ead326eb8ef835fee9f9a2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:11:46,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:11:46,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:11:46,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:11:46,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:11:46,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:11:46,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:11:46,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:11:46,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:11:46,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:11:46,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:11:46,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:11:46,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:11:46,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:11:46,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:11:46,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:11:46,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:11:46,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:11:46,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:11:46,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:11:46,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:11:46,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:11:46,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:11:46,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:11:46,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:11:46,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:11:46,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:11:46,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:11:46,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:11:46,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:11:46,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:11:46,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:11:46,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:11:46,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:11:46,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:11:46,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:11:46,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:11:46,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:11:46,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:11:46,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:11:46,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:11:46,049 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:11:46,061 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:11:46,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:11:46,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:11:46,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:11:46,062 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:11:46,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:11:46,063 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:11:46,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:11:46,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:11:46,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:11:46,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:11:46,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:11:46,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:11:46,064 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:11:46,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:11:46,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:11:46,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:11:46,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:11:46,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:11:46,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:11:46,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:11:46,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:11:46,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:11:46,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:11:46,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:11:46,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:11:46,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:11:46,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:11:46,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:11:46,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer 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 -> Automizer 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-12-07 12:11:46,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:11:46,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:11:46,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:11:46,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:11:46,189 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:11:46,189 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-12-07 12:11:46,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/4b8768d15/d1070831f34546f798f27c915b0c799c/FLAG3993f6bcf [2019-12-07 12:11:46,696 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:11:46,697 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-12-07 12:11:46,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/4b8768d15/d1070831f34546f798f27c915b0c799c/FLAG3993f6bcf [2019-12-07 12:11:46,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/4b8768d15/d1070831f34546f798f27c915b0c799c [2019-12-07 12:11:46,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:11:46,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:11:46,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:11:46,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:11:46,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:11:46,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5f1dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46, skipping insertion in model container [2019-12-07 12:11:46,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:11:46,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:11:46,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:11:46,893 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:11:46,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:11:46,931 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:11:46,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46 WrapperNode [2019-12-07 12:11:46,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:11:46,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:11:46,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:11:46,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:11:46,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:11:46,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:11:46,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:11:46,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:11:46,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... [2019-12-07 12:11:46,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:11:46,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:11:46,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:11:46,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:11:46,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/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 [2019-12-07 12:11:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:11:47,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 12:11:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:11:47,260 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:11:47,261 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 12:11:47,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:47 BoogieIcfgContainer [2019-12-07 12:11:47,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:11:47,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:11:47,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:11:47,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:11:47,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:11:46" (1/3) ... [2019-12-07 12:11:47,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0db5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:11:47, skipping insertion in model container [2019-12-07 12:11:47,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:46" (2/3) ... [2019-12-07 12:11:47,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0db5ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:11:47, skipping insertion in model container [2019-12-07 12:11:47,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:47" (3/3) ... [2019-12-07 12:11:47,267 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-12-07 12:11:47,274 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:11:47,278 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:11:47,285 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:11:47,300 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:11:47,300 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:11:47,300 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:11:47,300 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:11:47,300 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:11:47,300 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:11:47,300 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:11:47,300 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:11:47,310 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 12:11:47,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 12:11:47,314 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:11:47,314 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:11:47,314 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:11:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:47,318 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-12-07 12:11:47,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:11:47,323 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754797998] [2019-12-07 12:11:47,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:11:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:11:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:11:47,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754797998] [2019-12-07 12:11:47,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:11:47,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:11:47,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518056373] [2019-12-07 12:11:47,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:11:47,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:11:47,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:11:47,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:11:47,423 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 12:11:47,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:11:47,437 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-12-07 12:11:47,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:11:47,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 12:11:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:11:47,444 INFO L225 Difference]: With dead ends: 82 [2019-12-07 12:11:47,444 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 12:11:47,446 INFO L630 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 [2019-12-07 12:11:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 12:11:47,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 12:11:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 12:11:47,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 12:11:47,470 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-12-07 12:11:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:11:47,470 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 12:11:47,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:11:47,470 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 12:11:47,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:11:47,471 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:11:47,471 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:11:47,471 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:11:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:47,472 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-12-07 12:11:47,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:11:47,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196362645] [2019-12-07 12:11:47,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:11:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:47,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:11:47,563 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:11:47,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:11:47 BoogieIcfgContainer [2019-12-07 12:11:47,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:11:47,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:11:47,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:11:47,584 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:11:47,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:47" (3/4) ... [2019-12-07 12:11:47,586 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:11:47,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:11:47,588 INFO L168 Benchmark]: Toolchain (without parser) took 874.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -96.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:47,588 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:11:47,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:47,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:47,589 INFO L168 Benchmark]: Boogie Preprocessor took 23.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:11:47,590 INFO L168 Benchmark]: RCFGBuilder took 275.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:47,590 INFO L168 Benchmark]: TraceAbstraction took 321.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:47,590 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:47,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 275.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 321.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-12-07 12:11:49,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:11:49,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:11:49,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:11:49,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:11:49,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:11:49,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:11:49,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:11:49,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:11:49,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:11:49,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:11:49,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:11:49,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:11:49,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:11:49,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:11:49,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:11:49,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:11:49,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:11:49,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:11:49,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:11:49,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:11:49,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:11:49,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:11:49,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:11:49,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:11:49,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:11:49,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:11:49,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:11:49,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:11:49,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:11:49,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:11:49,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:11:49,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:11:49,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:11:49,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:11:49,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:11:49,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:11:49,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:11:49,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:11:49,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:11:49,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:11:49,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:11:49,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:11:49,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:11:49,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:11:49,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:11:49,092 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:11:49,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:11:49,093 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:11:49,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:11:49,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:11:49,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:11:49,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:11:49,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:11:49,094 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:11:49,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:11:49,094 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:11:49,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:11:49,094 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:11:49,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:11:49,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:11:49,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:11:49,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:11:49,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:11:49,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:11:49,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:11:49,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:11:49,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:11:49,096 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:11:49,096 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:11:49,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:11:49,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:11:49,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:11:49,096 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer 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 -> Automizer 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-12-07 12:11:49,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:11:49,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:11:49,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:11:49,276 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:11:49,276 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:11:49,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-12-07 12:11:49,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/f09cadc40/8a623755e7fe4d749e22e0a861496770/FLAGe33338df3 [2019-12-07 12:11:49,735 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:11:49,735 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-12-07 12:11:49,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/f09cadc40/8a623755e7fe4d749e22e0a861496770/FLAGe33338df3 [2019-12-07 12:11:49,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/data/f09cadc40/8a623755e7fe4d749e22e0a861496770 [2019-12-07 12:11:49,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:11:49,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:11:49,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:11:49,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:11:49,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:11:49,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:49,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57205783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49, skipping insertion in model container [2019-12-07 12:11:49,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:49,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:11:49,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:11:49,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:11:49,904 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:11:49,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:11:49,979 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:11:49,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49 WrapperNode [2019-12-07 12:11:49,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:11:49,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:11:49,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:11:49,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:11:49,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:49,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:11:50,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:11:50,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:11:50,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:11:50,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... [2019-12-07 12:11:50,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:11:50,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:11:50,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:11:50,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:11:50,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/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 [2019-12-07 12:11:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 12:11:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:11:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 12:11:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:11:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:11:50,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:11:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 12:11:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:11:50,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:11:51,008 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:11:51,008 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 12:11:51,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:51 BoogieIcfgContainer [2019-12-07 12:11:51,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:11:51,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:11:51,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:11:51,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:11:51,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:11:49" (1/3) ... [2019-12-07 12:11:51,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9ce253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:11:51, skipping insertion in model container [2019-12-07 12:11:51,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:49" (2/3) ... [2019-12-07 12:11:51,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9ce253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:11:51, skipping insertion in model container [2019-12-07 12:11:51,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:51" (3/3) ... [2019-12-07 12:11:51,013 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-12-07 12:11:51,019 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:11:51,024 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:11:51,031 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:11:51,045 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:11:51,045 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:11:51,045 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:11:51,045 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:11:51,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:11:51,046 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:11:51,046 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:11:51,046 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:11:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-12-07 12:11:51,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 12:11:51,059 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:11:51,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:11:51,060 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:11:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:51,063 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-12-07 12:11:51,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:11:51,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686847706] [2019-12-07 12:11:51,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/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 [2019-12-07 12:11:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:11:51,305 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:11:51,309 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:11:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:11:51,317 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:11:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:11:51,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686847706] [2019-12-07 12:11:51,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:11:51,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:11:51,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149507486] [2019-12-07 12:11:51,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:11:51,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:11:51,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:11:51,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:11:51,334 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-12-07 12:11:51,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:11:51,348 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-12-07 12:11:51,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:11:51,349 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 12:11:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:11:51,356 INFO L225 Difference]: With dead ends: 82 [2019-12-07 12:11:51,356 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 12:11:51,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:11:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 12:11:51,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 12:11:51,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 12:11:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-12-07 12:11:51,383 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-12-07 12:11:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:11:51,384 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-12-07 12:11:51,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:11:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-12-07 12:11:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:11:51,384 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:11:51,385 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:11:51,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:11:51,586 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:11:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:51,587 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-12-07 12:11:51,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:11:51,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912763471] [2019-12-07 12:11:51,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/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 [2019-12-07 12:11:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:11:51,879 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 12:11:51,881 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:11:53,290 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-12-07 12:11:53,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:11:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:11:54,326 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:11:58,084 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-12-07 12:11:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:11:58,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912763471] [2019-12-07 12:11:58,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:11:58,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 12:11:58,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075874230] [2019-12-07 12:11:58,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 12:11:58,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:11:58,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 12:11:58,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-12-07 12:11:58,318 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-12-07 12:12:02,891 WARN L192 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2019-12-07 12:12:04,157 WARN L192 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-12-07 12:12:05,108 WARN L192 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-12-07 12:12:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:05,299 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-12-07 12:12:05,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:12:05,300 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-12-07 12:12:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:05,301 INFO L225 Difference]: With dead ends: 44 [2019-12-07 12:12:05,301 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 12:12:05,302 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2019-12-07 12:12:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 12:12:05,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 12:12:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 12:12:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-12-07 12:12:05,306 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-12-07 12:12:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:05,306 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-12-07 12:12:05,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 12:12:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-12-07 12:12:05,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 12:12:05,307 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:12:05,307 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:12:05,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:12:05,508 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:12:05,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:12:05,509 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-12-07 12:12:05,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:12:05,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474797291] [2019-12-07 12:12:05,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/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 [2019-12-07 12:12:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:12:05,594 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 12:12:05,596 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:12:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:05,624 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:12:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:12:05,663 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474797291] [2019-12-07 12:12:05,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:12:05,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 12:12:05,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756766253] [2019-12-07 12:12:05,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:12:05,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:12:05,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:12:05,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:12:05,665 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2019-12-07 12:12:05,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:12:05,710 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-12-07 12:12:05,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:12:05,710 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-12-07 12:12:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:12:05,710 INFO L225 Difference]: With dead ends: 39 [2019-12-07 12:12:05,711 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:12:05,711 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:12:05,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:12:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:12:05,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:12:05,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:12:05,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-12-07 12:12:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:12:05,712 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:12:05,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:12:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:12:05,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:12:05,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:12:05,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:12:06,011 INFO L249 CegarLoopResult]: At program point L126(lines 110 127) the Hoare annotation is: true [2019-12-07 12:12:06,011 INFO L246 CegarLoopResult]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 12:12:06,011 INFO L246 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L242 CegarLoopResult]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-12-07 12:12:06,012 INFO L246 CegarLoopResult]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L242 CegarLoopResult]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L242 CegarLoopResult]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-12-07 12:12:06,013 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:12:06,014 INFO L246 CegarLoopResult]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-12-07 12:12:06,014 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-12-07 12:12:06,014 INFO L242 CegarLoopResult]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-12-07 12:12:06,014 INFO L246 CegarLoopResult]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-12-07 12:12:06,014 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-12-07 12:12:06,014 INFO L242 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-12-07 12:12:06,014 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:12:06,014 INFO L246 CegarLoopResult]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-12-07 12:12:06,015 INFO L246 CegarLoopResult]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-12-07 12:12:06,015 INFO L246 CegarLoopResult]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-12-07 12:12:06,015 INFO L246 CegarLoopResult]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-12-07 12:12:06,015 INFO L242 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-12-07 12:12:06,015 INFO L246 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-12-07 12:12:06,015 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-12-07 12:12:06,016 INFO L242 CegarLoopResult]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-12-07 12:12:06,016 INFO L246 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-12-07 12:12:06,016 INFO L246 CegarLoopResult]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-12-07 12:12:06,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,032 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,033 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:12:06 BoogieIcfgContainer [2019-12-07 12:12:06,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:12:06,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:12:06,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:12:06,036 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:12:06,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:51" (3/4) ... [2019-12-07 12:12:06,039 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:12:06,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 12:12:06,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 12:12:06,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:12:06,086 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e427f872-868a-45cc-bd97-d9dfe6141197/bin/uautomizer/witness.graphml [2019-12-07 12:12:06,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:12:06,087 INFO L168 Benchmark]: Toolchain (without parser) took 16336.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.7 MB in the beginning and 958.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 127.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:06,088 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:06,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:06,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.46 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. [2019-12-07 12:12:06,089 INFO L168 Benchmark]: Boogie Preprocessor took 28.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:06,089 INFO L168 Benchmark]: RCFGBuilder took 969.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:06,089 INFO L168 Benchmark]: TraceAbstraction took 15025.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.3 MB in the end (delta: 117.4 MB). Peak memory consumption was 117.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:12:06,090 INFO L168 Benchmark]: Witness Printer took 51.20 ms. Allocated memory is still 1.2 GB. Free memory is still 958.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:12:06,091 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 227.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 969.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15025.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.3 MB in the end (delta: 117.4 MB). Peak memory consumption was 117.4 MB. Max. memory is 11.5 GB. * Witness Printer took 51.20 ms. Allocated memory is still 1.2 GB. Free memory is still 958.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-12-07 12:12:06,097 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,097 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-12-07 12:12:06,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant [2019-12-07 12:12:06,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:12:06,099 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:12:06,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 14.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 111 SDslu, 197 SDs, 0 SdLazy, 38 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 4137 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...