./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --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_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ........................................................................................................................................................................................................................ 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_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:27:45,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:27:45,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:27:45,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:27:45,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:27:45,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:27:45,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:27:45,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:27:45,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:27:45,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:27:45,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:27:45,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:27:45,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:27:45,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:27:45,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:27:45,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:27:45,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:27:45,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:27:45,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:27:45,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:27:45,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:27:45,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:27:45,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:27:45,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:27:45,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:27:45,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:27:45,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:27:45,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:27:45,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:27:45,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:27:45,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:27:45,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:27:45,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:27:45,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:27:45,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:27:45,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:27:45,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:27:45,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:27:45,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:27:45,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:27:45,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:27:45,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:27:45,929 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:27:45,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:27:45,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:27:45,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:27:45,930 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:27:45,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:27:45,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:27:45,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:27:45,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:27:45,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:27:45,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:27:45,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:27:45,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:27:45,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:27:45,933 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_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2019-12-07 18:27:46,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:27:46,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:27:46,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:27:46,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:27:46,043 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:27:46,043 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-12-07 18:27:46,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/e3d6cc4ad/d39354f9f786496993811ef9470ac783/FLAG1e8d3bf4a [2019-12-07 18:27:46,445 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:27:46,446 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-12-07 18:27:46,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/e3d6cc4ad/d39354f9f786496993811ef9470ac783/FLAG1e8d3bf4a [2019-12-07 18:27:46,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/e3d6cc4ad/d39354f9f786496993811ef9470ac783 [2019-12-07 18:27:46,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:27:46,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:27:46,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:46,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:27:46,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:27:46,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:46" (1/1) ... [2019-12-07 18:27:46,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fdb8c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:46, skipping insertion in model container [2019-12-07 18:27:46,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:46" (1/1) ... [2019-12-07 18:27:46,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:27:46,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:27:47,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:47,027 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:27:47,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:47,058 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:27:47,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47 WrapperNode [2019-12-07 18:27:47,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:47,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:27:47,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:27:47,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:27:47,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:27:47,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:27:47,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:27:47,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:27:47,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... [2019-12-07 18:27:47,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:27:47,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:27:47,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:27:47,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:27:47,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 18:27:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:27:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:27:47,237 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:27:47,237 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 18:27:47,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:47 BoogieIcfgContainer [2019-12-07 18:27:47,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:27:47,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:27:47,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:27:47,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:27:47,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:27:46" (1/3) ... [2019-12-07 18:27:47,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d8f4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:27:47, skipping insertion in model container [2019-12-07 18:27:47,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:47" (2/3) ... [2019-12-07 18:27:47,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d8f4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:27:47, skipping insertion in model container [2019-12-07 18:27:47,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:47" (3/3) ... [2019-12-07 18:27:47,243 INFO L109 eAbstractionObserver]: Analyzing ICFG float20.i [2019-12-07 18:27:47,249 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:27:47,253 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:27:47,260 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:27:47,274 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:27:47,274 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:27:47,275 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:27:47,275 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:27:47,275 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:27:47,275 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:27:47,275 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:27:47,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:27:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-12-07 18:27:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 18:27:47,288 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:27:47,288 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 18:27:47,288 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:27:47,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:27:47,292 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-12-07 18:27:47,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:27:47,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461439159] [2019-12-07 18:27:47,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:27:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:27:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:27:47,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:27:47,372 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:27:47,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:27:47 BoogieIcfgContainer [2019-12-07 18:27:47,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:27:47,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:27:47,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:27:47,383 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:27:47,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:47" (3/4) ... [2019-12-07 18:27:47,386 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:27:47,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:27:47,388 INFO L168 Benchmark]: Toolchain (without parser) took 559.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 63.4 MB). Free memory was 939.8 MB in the beginning and 1.0 GB in the end (delta: -85.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:27:47,388 INFO L168 Benchmark]: CDTParser took 0.17 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 18:27:47,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 63.4 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:27:47,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.56 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 18:27:47,390 INFO L168 Benchmark]: Boogie Preprocessor took 12.02 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 18:27:47,390 INFO L168 Benchmark]: RCFGBuilder took 140.50 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: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:27:47,391 INFO L168 Benchmark]: TraceAbstraction took 144.22 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:27:47,391 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:27:47,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 230.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 63.4 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.56 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. * Boogie Preprocessor took 12.02 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. * RCFGBuilder took 140.50 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: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144.22 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; [L10] COND TRUE !(ulpdiff == 0x1p-126f) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 18:27:48,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:27:48,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:27:48,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:27:48,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:27:48,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:27:48,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:27:48,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:27:48,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:27:48,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:27:48,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:27:48,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:27:48,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:27:48,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:27:48,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:27:48,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:27:48,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:27:48,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:27:48,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:27:48,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:27:48,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:27:48,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:27:48,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:27:48,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:27:48,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:27:48,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:27:48,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:27:48,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:27:48,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:27:48,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:27:48,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:27:48,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:27:48,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:27:48,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:27:48,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:27:48,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:27:48,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:27:48,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:27:48,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:27:48,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:27:48,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:27:48,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:27:48,800 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:27:48,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:27:48,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:27:48,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:27:48,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:27:48,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:27:48,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:27:48,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:27:48,803 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:27:48,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:27:48,803 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:27:48,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:27:48,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:27:48,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:27:48,804 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:27:48,805 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:27:48,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:27:48,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:27:48,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:27:48,805 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_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2019-12-07 18:27:48,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:27:48,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:27:48,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:27:48,978 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:27:48,978 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:27:48,978 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-12-07 18:27:49,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/db6a539d2/a6e920b37f6f45d982a37432b5b8e8fb/FLAGa030656e8 [2019-12-07 18:27:49,457 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:27:49,457 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/sv-benchmarks/c/floats-cbmc-regression/float20.i [2019-12-07 18:27:49,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/db6a539d2/a6e920b37f6f45d982a37432b5b8e8fb/FLAGa030656e8 [2019-12-07 18:27:49,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/data/db6a539d2/a6e920b37f6f45d982a37432b5b8e8fb [2019-12-07 18:27:49,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:27:49,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:27:49,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:49,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:27:49,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:27:49,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b30e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49, skipping insertion in model container [2019-12-07 18:27:49,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:27:49,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:27:49,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:49,617 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:27:49,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:27:49,642 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:27:49,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49 WrapperNode [2019-12-07 18:27:49,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:27:49,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:27:49,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:27:49,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:27:49,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:27:49,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:27:49,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:27:49,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:27:49,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... [2019-12-07 18:27:49,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:27:49,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:27:49,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:27:49,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:27:49,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 18:27:49,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:27:49,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:27:51,344 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:27:51,344 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 18:27:51,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:51 BoogieIcfgContainer [2019-12-07 18:27:51,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:27:51,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:27:51,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:27:51,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:27:51,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:27:49" (1/3) ... [2019-12-07 18:27:51,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d1c5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:27:51, skipping insertion in model container [2019-12-07 18:27:51,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:27:49" (2/3) ... [2019-12-07 18:27:51,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d1c5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:27:51, skipping insertion in model container [2019-12-07 18:27:51,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:51" (3/3) ... [2019-12-07 18:27:51,350 INFO L109 eAbstractionObserver]: Analyzing ICFG float20.i [2019-12-07 18:27:51,356 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:27:51,360 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:27:51,367 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:27:51,382 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:27:51,382 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:27:51,382 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:27:51,382 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:27:51,383 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:27:51,383 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:27:51,383 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:27:51,383 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:27:51,392 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-12-07 18:27:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:27:51,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:27:51,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:27:51,397 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:27:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:27:51,400 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 18:27:51,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:27:51,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928203852] [2019-12-07 18:27:51,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 18:27:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:27:51,494 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 18:27:51,498 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:27:51,738 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-12-07 18:27:51,764 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 18:27:51,764 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:27:52,024 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 18:27:52,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928203852] [2019-12-07 18:27:52,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:27:52,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 18:27:52,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68131673] [2019-12-07 18:27:52,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:27:52,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:27:52,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:27:52,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:27:52,039 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2019-12-07 18:27:54,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:27:54,294 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-12-07 18:27:54,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:27:54,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 18:27:54,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:27:54,304 INFO L225 Difference]: With dead ends: 29 [2019-12-07 18:27:54,304 INFO L226 Difference]: Without dead ends: 11 [2019-12-07 18:27:54,306 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:27:54,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-07 18:27:54,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 18:27:54,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 18:27:54,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-12-07 18:27:54,328 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2019-12-07 18:27:54,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:27:54,328 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-12-07 18:27:54,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:27:54,328 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-12-07 18:27:54,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 18:27:54,328 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:27:54,328 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:27:54,529 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:27:54,530 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:27:54,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:27:54,530 INFO L82 PathProgramCache]: Analyzing trace with hash 889630855, now seen corresponding path program 1 times [2019-12-07 18:27:54,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:27:54,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211124848] [2019-12-07 18:27:54,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 18:27:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:27:54,767 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 18:27:54,768 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:27:58,827 WARN L192 SmtUtils]: Spent 3.16 s on a formula simplification that was a NOOP. DAG size: 22 [2019-12-07 18:27:59,140 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 18:27:59,141 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:03,856 WARN L192 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 21 [2019-12-07 18:28:03,860 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 18:28:03,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211124848] [2019-12-07 18:28:03,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:03,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 18:28:03,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278014007] [2019-12-07 18:28:03,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:28:03,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:03,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:28:03,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:28:03,862 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 6 states. [2019-12-07 18:28:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:07,066 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 18:28:07,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:28:07,092 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-12-07 18:28:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:07,093 INFO L225 Difference]: With dead ends: 11 [2019-12-07 18:28:07,093 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 18:28:07,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:28:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 18:28:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 18:28:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 18:28:07,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-12-07 18:28:07,096 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2019-12-07 18:28:07,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:07,096 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-12-07 18:28:07,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:28:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-07 18:28:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 18:28:07,097 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:07,097 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:07,298 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:28:07,298 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:07,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:07,299 INFO L82 PathProgramCache]: Analyzing trace with hash 236885482, now seen corresponding path program 1 times [2019-12-07 18:28:07,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:07,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240998046] [2019-12-07 18:28:07,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/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 18:28:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:07,562 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:28:07,562 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:07,837 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-12-07 18:28:07,867 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 18:28:07,867 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:08,238 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 18:28:08,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240998046] [2019-12-07 18:28:08,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:08,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 18:28:08,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416455575] [2019-12-07 18:28:08,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:28:08,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:08,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:28:08,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:28:08,240 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 6 states. [2019-12-07 18:28:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:11,098 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-12-07 18:28:11,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:28:11,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-12-07 18:28:11,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:11,105 INFO L225 Difference]: With dead ends: 9 [2019-12-07 18:28:11,105 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:28:11,105 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:28:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:28:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:28:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:28:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:28:11,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-07 18:28:11,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:11,106 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:28:11,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:28:11,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:28:11,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:28:11,307 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:28:11,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:28:11,465 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-12-07 18:28:11,608 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-12-07 18:28:14,956 WARN L192 SmtUtils]: Spent 3.35 s on a formula simplification that was a NOOP. DAG size: 29 [2019-12-07 18:28:15,100 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-12-07 18:28:15,102 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:28:15,102 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-12-07 18:28:15,102 INFO L246 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-12-07 18:28:15,102 INFO L242 CegarLoopResult]: At program point L31-3(lines 26 34) the Hoare annotation is: (and (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))) (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:28:15,102 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2019-12-07 18:28:15,102 INFO L246 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2019-12-07 18:28:15,103 INFO L246 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-12-07 18:28:15,103 INFO L242 CegarLoopResult]: At program point L21-3(lines 15 24) the Hoare annotation is: (and (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))) (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))))) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_bugBrokenOut_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bugBrokenOut_~ulpdiff~1 ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_bugBrokenOut_~min) ((_ to_fp 11 53) currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))) (fp.eq ULTIMATE.start_bugBrokenOut_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))))) [2019-12-07 18:28:15,103 INFO L242 CegarLoopResult]: At program point L46(lines 36 47) the Hoare annotation is: (and (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))) (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:28:15,103 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:28:15,103 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:28:15,103 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:28:15,103 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-12-07 18:28:15,104 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2019-12-07 18:28:15,104 INFO L246 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2019-12-07 18:28:15,104 INFO L246 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-12-07 18:28:15,104 INFO L242 CegarLoopResult]: At program point L10-3(lines 5 13) the Hoare annotation is: (and (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))) (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:28:15,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,112 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,117 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,117 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,117 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,118 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,119 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,120 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,121 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,123 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,126 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,128 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,135 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:28:15 BoogieIcfgContainer [2019-12-07 18:28:15,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:28:15,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:28:15,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:28:15,138 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:28:15,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:27:51" (3/4) ... [2019-12-07 18:28:15,141 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:28:15,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 18:28:15,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:28:15,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:28:15,167 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:28:15,168 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) [2019-12-07 18:28:15,168 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:28:15,168 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:28:15,179 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_803b2d25-dc6f-4c83-945b-6c900af4b7ad/bin/uautomizer/witness.graphml [2019-12-07 18:28:15,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:28:15,180 INFO L168 Benchmark]: Toolchain (without parser) took 25707.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 952.4 MB in the beginning and 989.3 MB in the end (delta: -36.9 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,181 INFO L168 Benchmark]: CDTParser took 0.16 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 18:28:15,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.18 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,182 INFO L168 Benchmark]: Boogie Preprocessor took 15.31 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,182 INFO L168 Benchmark]: RCFGBuilder took 1631.83 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,182 INFO L168 Benchmark]: TraceAbstraction took 23791.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.2 MB in the end (delta: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,183 INFO L168 Benchmark]: Witness Printer took 41.65 ms. Allocated memory is still 1.1 GB. Free memory was 996.2 MB in the beginning and 989.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:15,184 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 170.18 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.31 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1631.83 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23791.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.2 MB in the end (delta: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. * Witness Printer took 41.65 ms. Allocated memory is still 1.1 GB. Free memory was 996.2 MB in the beginning and 989.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant [2019-12-07 18:28:15,191 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,191 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 5]: Loop Invariant [2019-12-07 18:28:15,195 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,195 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,196 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,196 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2019-12-07 18:28:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,202 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2019-12-07 18:28:15,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) - InvariantResult [Line: 36]: Loop Invariant [2019-12-07 18:28:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,205 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,207 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2019-12-07 18:28:15,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:28:15,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:28:15,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))) && ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Result: SAFE, OverallTime: 19.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, HoareTripleCheckerStatistics: 9 SDtfs, 52 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 132 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 12 QuantifiedInterpolants, 1679 SizeOfPredicates, 12 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 15 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...