./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 31da98a788dd1938c78053bade42bc512d4e8954 ................................................................................................................................................................................................................................................................................................................................................................. 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/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 31da98a788dd1938c78053bade42bc512d4e8954 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:12,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:12,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:12,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:12,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:12,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:12,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:12,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:12,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:12,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:12,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:12,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:12,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:12,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:12,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:12,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:12,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:12,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:12,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:12,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:12,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:12,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:12,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:12,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:12,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:12,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:12,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:12,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:12,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:12,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:12,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:12,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:12,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:12,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:12,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:12,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:12,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:12,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:12,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:12,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:12,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:12,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:12,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:12,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:12,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:12,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:12,838 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:12,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:12,840 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:12,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:12,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:12,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:12,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:12,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:12,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:12,841 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:12,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:12,841 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:12,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:12,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:12,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:12,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:12,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:12,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:12,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:12,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:12,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:12,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:12,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:12,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:12,843 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/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2019-10-22 09:02:12,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:12,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:12,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:12,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:12,885 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:12,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-10-22 09:02:12,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/73a82cdf5/37f07401e7f44ad198701f9a9580526c/FLAG0c3bd7d0d [2019-10-22 09:02:13,314 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:13,315 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-10-22 09:02:13,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/73a82cdf5/37f07401e7f44ad198701f9a9580526c/FLAG0c3bd7d0d [2019-10-22 09:02:13,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/73a82cdf5/37f07401e7f44ad198701f9a9580526c [2019-10-22 09:02:13,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:13,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:13,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:13,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:13,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:13,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8bb5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13, skipping insertion in model container [2019-10-22 09:02:13,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:13,367 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:13,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:13,613 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:13,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:13,656 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:13,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13 WrapperNode [2019-10-22 09:02:13,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:13,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:13,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:13,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:13,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:13,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:13,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:13,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:13,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... [2019-10-22 09:02:13,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:13,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:13,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:13,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:13,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 [2019-10-22 09:02:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 09:02:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:13,977 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:13,977 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:02:13,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:13 BoogieIcfgContainer [2019-10-22 09:02:13,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:13,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:13,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:13,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:13,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:13" (1/3) ... [2019-10-22 09:02:13,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ddd37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:13, skipping insertion in model container [2019-10-22 09:02:13,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:13" (2/3) ... [2019-10-22 09:02:13,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ddd37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:13, skipping insertion in model container [2019-10-22 09:02:13,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:13" (3/3) ... [2019-10-22 09:02:13,985 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2019-10-22 09:02:13,993 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:14,000 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:14,009 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:14,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:14,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:14,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:14,031 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:14,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:14,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:14,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:14,031 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 09:02:14,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:02:14,050 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:14,050 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:14,052 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:14,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:14,057 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-10-22 09:02:14,064 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:14,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95691099] [2019-10-22 09:02:14,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,065 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:14,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95691099] [2019-10-22 09:02:14,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:14,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:14,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257275055] [2019-10-22 09:02:14,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:02:14,177 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:14,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:02:14,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:02:14,189 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-22 09:02:14,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:14,204 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-10-22 09:02:14,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:02:14,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:02:14,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:14,215 INFO L225 Difference]: With dead ends: 54 [2019-10-22 09:02:14,216 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:02:14,218 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:02:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:02:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:02:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:02:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-10-22 09:02:14,247 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-10-22 09:02:14,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:14,247 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-10-22 09:02:14,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:02:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-10-22 09:02:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:02:14,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:14,248 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:14,248 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:14,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:14,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-10-22 09:02:14,249 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:14,249 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999440401] [2019-10-22 09:02:14,249 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,249 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:14,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999440401] [2019-10-22 09:02:14,316 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:14,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:14,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827657176] [2019-10-22 09:02:14,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:14,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:14,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:14,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:14,319 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-10-22 09:02:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:14,375 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-10-22 09:02:14,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:14,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 09:02:14,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:14,377 INFO L225 Difference]: With dead ends: 41 [2019-10-22 09:02:14,377 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 09:02:14,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 09:02:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-10-22 09:02:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:02:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 09:02:14,383 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-10-22 09:02:14,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:14,384 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 09:02:14,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 09:02:14,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:14,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:14,384 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:14,385 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:14,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:14,385 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-10-22 09:02:14,385 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:14,386 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431995925] [2019-10-22 09:02:14,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:14,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431995925] [2019-10-22 09:02:14,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:14,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:14,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319124605] [2019-10-22 09:02:14,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:14,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:14,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:14,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:14,461 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-10-22 09:02:14,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:14,535 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-10-22 09:02:14,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:14,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-22 09:02:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:14,538 INFO L225 Difference]: With dead ends: 43 [2019-10-22 09:02:14,538 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 09:02:14,539 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:14,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 09:02:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-10-22 09:02:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:02:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 09:02:14,545 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-10-22 09:02:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:14,546 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 09:02:14,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 09:02:14,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:14,547 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:14,547 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:14,547 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:14,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:14,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-10-22 09:02:14,547 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:14,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246666304] [2019-10-22 09:02:14,548 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,548 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:14,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:02:14,610 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:02:14,610 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:02:14,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:14 BoogieIcfgContainer [2019-10-22 09:02:14,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:14,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:14,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:14,634 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:14,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:13" (3/4) ... [2019-10-22 09:02:14,637 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:02:14,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:14,640 INFO L168 Benchmark]: Toolchain (without parser) took 1301.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -120.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:14,640 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:14,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:14,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:14,642 INFO L168 Benchmark]: Boogie Preprocessor took 23.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:14,642 INFO L168 Benchmark]: RCFGBuilder took 264.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:14,643 INFO L168 Benchmark]: TraceAbstraction took 653.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:14,643 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:14,645 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 653.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L12] __uint32_t w; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] return 0; [L35] COND TRUE __fpclassify_float(x) == 0 [L36] return y; [L56] float res = fmin_float(x, y); [L44] return x != x; [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 22 SDslu, 110 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 0.1.24-cad4683 [2019-10-22 09:02:16,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:16,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:16,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:16,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:16,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:16,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:16,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:16,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:16,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:16,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:16,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:16,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:16,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:16,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:16,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:16,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:16,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:16,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:16,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:16,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:16,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:16,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:16,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:16,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:16,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:16,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:16,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:16,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:16,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:16,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:16,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:16,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:16,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:16,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:16,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:16,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:16,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:16,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:16,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:16,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:16,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:02:16,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:16,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:16,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:16,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:16,739 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:16,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:16,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:16,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:16,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:16,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:16,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:16,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:16,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:02:16,740 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:02:16,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:16,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:16,741 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:16,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:16,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:16,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:16,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:16,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:16,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:16,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:16,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:16,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:16,744 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:02:16,744 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:02:16,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:16,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:02:16,745 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/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2019-10-22 09:02:16,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:16,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:16,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:16,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:16,786 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:16,787 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-10-22 09:02:16,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/1d52487ac/87935753cdf840feb82e21d807166e9b/FLAG56a091845 [2019-10-22 09:02:17,214 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:17,215 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/sv-benchmarks/c/float-newlib/float_req_bl_1230.c [2019-10-22 09:02:17,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/1d52487ac/87935753cdf840feb82e21d807166e9b/FLAG56a091845 [2019-10-22 09:02:17,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/data/1d52487ac/87935753cdf840feb82e21d807166e9b [2019-10-22 09:02:17,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:17,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:17,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:17,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:17,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:17,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:17,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d48cd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17, skipping insertion in model container [2019-10-22 09:02:17,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:17,647 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:17,661 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:17,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:17,850 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:17,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:17,909 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:17,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17 WrapperNode [2019-10-22 09:02:17,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:17,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:17,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:17,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:17,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:18,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:18,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:18,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:18,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... [2019-10-22 09:02:18,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:18,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:18,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:18,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:18,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 [2019-10-22 09:02:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:02:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 09:02:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:18,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:18,424 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:02:18,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:18 BoogieIcfgContainer [2019-10-22 09:02:18,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:18,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:18,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:18,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:18,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:17" (1/3) ... [2019-10-22 09:02:18,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d97f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:18, skipping insertion in model container [2019-10-22 09:02:18,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:17" (2/3) ... [2019-10-22 09:02:18,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d97f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:18, skipping insertion in model container [2019-10-22 09:02:18,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:18" (3/3) ... [2019-10-22 09:02:18,432 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230.c [2019-10-22 09:02:18,442 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:18,448 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:18,459 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:18,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:18,492 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:18,493 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:18,493 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:18,493 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:18,493 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:18,493 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:18,493 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 09:02:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:02:18,523 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:18,524 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:18,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:18,540 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-10-22 09:02:18,550 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:18,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842820168] [2019-10-22 09:02:18,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 [2019-10-22 09:02:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:18,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 09:02:18,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:18,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:18,651 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:18,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842820168] [2019-10-22 09:02:18,655 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:18,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:02:18,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068878544] [2019-10-22 09:02:18,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:02:18,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:18,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:02:18,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:02:18,674 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-22 09:02:18,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:18,689 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-10-22 09:02:18,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:02:18,690 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:02:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:18,700 INFO L225 Difference]: With dead ends: 54 [2019-10-22 09:02:18,700 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:02:18,703 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:02:18,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:02:18,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:02:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:02:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-10-22 09:02:18,743 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-10-22 09:02:18,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:18,743 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-10-22 09:02:18,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:02:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-10-22 09:02:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:02:18,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:18,744 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:18,945 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:02:18,945 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:18,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:18,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-10-22 09:02:18,946 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:18,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843997701] [2019-10-22 09:02:18,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 [2019-10-22 09:02:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:18,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:02:18,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:19,038 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:19,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843997701] [2019-10-22 09:02:19,075 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:19,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 09:02:19,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943289271] [2019-10-22 09:02:19,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:19,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:19,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:19,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:19,079 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-10-22 09:02:19,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:19,209 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-10-22 09:02:19,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:19,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 09:02:19,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:19,213 INFO L225 Difference]: With dead ends: 52 [2019-10-22 09:02:19,213 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 09:02:19,214 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:19,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 09:02:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-10-22 09:02:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:02:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 09:02:19,222 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-10-22 09:02:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:19,222 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 09:02:19,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 09:02:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:19,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:19,228 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:19,429 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:02:19,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:19,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-10-22 09:02:19,430 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:19,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126364976] [2019-10-22 09:02:19,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/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 [2019-10-22 09:02:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:19,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:02:19,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:19,535 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:19,572 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126364976] [2019-10-22 09:02:19,572 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:19,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 09:02:19,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589772981] [2019-10-22 09:02:19,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:02:19,573 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:19,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:02:19,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:19,574 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-10-22 09:02:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:19,671 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-10-22 09:02:19,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:19,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-22 09:02:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:19,673 INFO L225 Difference]: With dead ends: 36 [2019-10-22 09:02:19,673 INFO L226 Difference]: Without dead ends: 27 [2019-10-22 09:02:19,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:19,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-22 09:02:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-10-22 09:02:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:02:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-10-22 09:02:19,678 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-10-22 09:02:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:19,679 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-10-22 09:02:19,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:02:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-10-22 09:02:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:02:19,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:19,680 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:19,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:02:19,887 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:19,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:19,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-10-22 09:02:19,888 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:19,888 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446170996] [2019-10-22 09:02:19,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-10-22 09:02:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:19,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:02:19,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:19,974 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:20,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446170996] [2019-10-22 09:02:20,000 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:20,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 09:02:20,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553258288] [2019-10-22 09:02:20,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:20,001 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:20,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:20,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:20,002 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-10-22 09:02:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:20,105 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-10-22 09:02:20,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:20,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-10-22 09:02:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:20,109 INFO L225 Difference]: With dead ends: 52 [2019-10-22 09:02:20,109 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 09:02:20,109 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 09:02:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-10-22 09:02:20,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:02:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-10-22 09:02:20,114 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-10-22 09:02:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:20,116 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-10-22 09:02:20,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-10-22 09:02:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:02:20,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:20,119 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:20,326 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 09:02:20,327 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:20,327 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-10-22 09:02:20,327 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:20,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2005715907] [2019-10-22 09:02:20,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-10-22 09:02:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:20,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 09:02:20,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:20,428 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:20,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2005715907] [2019-10-22 09:02:20,474 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:20,475 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 09:02:20,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134381552] [2019-10-22 09:02:20,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:02:20,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:20,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:02:20,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:20,478 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 9 states. [2019-10-22 09:02:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:20,613 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-10-22 09:02:20,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:20,614 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-10-22 09:02:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:20,615 INFO L225 Difference]: With dead ends: 32 [2019-10-22 09:02:20,615 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 09:02:20,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:02:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 09:02:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 09:02:20,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:02:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-10-22 09:02:20,619 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-10-22 09:02:20,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:20,620 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-10-22 09:02:20,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:02:20,620 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-10-22 09:02:20,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:20,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:20,621 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:20,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-10-22 09:02:20,833 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:20,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-10-22 09:02:20,833 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:02:20,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38323462] [2019-10-22 09:02:20,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-10-22 09:02:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:20,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:02:20,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:20,926 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:02:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:20,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38323462] [2019-10-22 09:02:20,961 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:20,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 09:02:20,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367149006] [2019-10-22 09:02:20,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:02:20,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:02:20,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:02:20,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:20,963 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2019-10-22 09:02:21,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:21,023 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-10-22 09:02:21,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:21,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-10-22 09:02:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:21,024 INFO L225 Difference]: With dead ends: 23 [2019-10-22 09:02:21,024 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:21,024 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:21,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-22 09:02:21,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:21,025 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:21,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:02:21,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:21,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:21,226 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-10-22 09:02:21,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:02:21,395 INFO L439 ceAbstractionStarter]: At program point L31(lines 11 32) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0))) [2019-10-22 09:02:21,395 INFO L439 ceAbstractionStarter]: At program point L31-1(lines 11 32) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (let ((.cse0 (= ULTIMATE.start_fmin_float_~y .cse1))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))) (and (= ULTIMATE.start_fmin_float_~x .cse1) .cse0)))) [2019-10-22 09:02:21,396 INFO L439 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_fmin_float_~y .cse0) (= |ULTIMATE.start_fmin_float_#res| .cse0))) [2019-10-22 09:02:21,396 INFO L443 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-10-22 09:02:21,396 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-10-22 09:02:21,396 INFO L443 ceAbstractionStarter]: For program point L40-2(line 40) no Hoare annotation was computed. [2019-10-22 09:02:21,396 INFO L439 ceAbstractionStarter]: At program point L40-3(lines 34 41) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~y .cse0) (= |ULTIMATE.start_fmin_float_#res| .cse0))) [2019-10-22 09:02:21,396 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:02:21,396 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 31) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point L28-1(lines 28 31) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 61) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 25 31) no Hoare annotation was computed. [2019-10-22 09:02:21,397 INFO L446 ceAbstractionStarter]: At program point L63(lines 46 64) the Hoare annotation is: true [2019-10-22 09:02:21,398 INFO L443 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-10-22 09:02:21,398 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 31) no Hoare annotation was computed. [2019-10-22 09:02:21,398 INFO L443 ceAbstractionStarter]: For program point L22-1(lines 22 31) no Hoare annotation was computed. [2019-10-22 09:02:21,398 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2019-10-22 09:02:21,398 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0))) [2019-10-22 09:02:21,400 INFO L443 ceAbstractionStarter]: For program point L14-3(lines 11 32) no Hoare annotation was computed. [2019-10-22 09:02:21,400 INFO L443 ceAbstractionStarter]: For program point L14-5(lines 14 18) no Hoare annotation was computed. [2019-10-22 09:02:21,400 INFO L439 ceAbstractionStarter]: At program point L14-6(lines 14 18) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= ULTIMATE.start_fmin_float_~x .cse0) (= ULTIMATE.start_fmin_float_~y .cse0))) [2019-10-22 09:02:21,400 INFO L443 ceAbstractionStarter]: For program point L14-7(lines 11 32) no Hoare annotation was computed. [2019-10-22 09:02:21,400 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-10-22 09:02:21,408 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,409 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,411 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,411 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,412 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,412 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,414 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,414 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,414 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,415 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,415 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,415 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,418 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,418 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:21 BoogieIcfgContainer [2019-10-22 09:02:21,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:21,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:21,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:21,422 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:21,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:18" (3/4) ... [2019-10-22 09:02:21,426 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:21,436 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-10-22 09:02:21,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:02:21,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:02:21,460 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-10-22 09:02:21,461 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-10-22 09:02:21,461 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && !(0bv32 == \result)) || (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-10-22 09:02:21,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f141dffa-329c-4225-8c47-5eba57a6e268/bin/uautomizer/witness.graphml [2019-10-22 09:02:21,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:21,491 INFO L168 Benchmark]: Toolchain (without parser) took 3860.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 947.0 MB in the beginning and 927.1 MB in the end (delta: 19.8 MB). Peak memory consumption was 170.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:21,491 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:21,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 936.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:21,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:21,492 INFO L168 Benchmark]: Boogie Preprocessor took 47.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:21,493 INFO L168 Benchmark]: RCFGBuilder took 333.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:21,493 INFO L168 Benchmark]: TraceAbstraction took 2994.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.1 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:21,493 INFO L168 Benchmark]: Witness Printer took 67.32 ms. Allocated memory is still 1.2 GB. Free memory is still 927.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:21,495 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 936.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 133.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 333.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2994.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.1 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 11.5 GB. * Witness Printer took 67.32 ms. Allocated memory is still 1.2 GB. Free memory is still 927.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant [2019-10-22 09:02:21,500 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,500 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2019-10-22 09:02:21,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 44]: Loop Invariant [2019-10-22 09:02:21,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (1bv32 == \result && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 14]: Loop Invariant [2019-10-22 09:02:21,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 14]: Loop Invariant [2019-10-22 09:02:21,505 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 11]: Loop Invariant [2019-10-22 09:02:21,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:02:21,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && !(0bv32 == \result)) || (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 182 SDtfs, 106 SDslu, 504 SDs, 0 SdLazy, 131 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 94 HoareAnnotationTreeSize, 7 FomulaSimplifications, 273 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 9152 SizeOfPredicates, 26 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...