./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e16d2ad47f8069122c38404dcdf9504ef10df900 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e16d2ad47f8069122c38404dcdf9504ef10df900 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 12:18:36,865 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:18:36,866 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:18:36,872 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:18:36,872 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:18:36,873 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:18:36,873 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:18:36,874 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:18:36,875 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:18:36,875 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:18:36,876 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:18:36,876 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:18:36,877 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:18:36,877 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:18:36,878 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:18:36,878 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:18:36,879 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:18:36,879 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:18:36,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:18:36,881 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:18:36,882 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:18:36,882 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:18:36,884 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:18:36,884 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:18:36,884 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:18:36,884 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:18:36,885 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:18:36,885 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:18:36,886 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:18:36,887 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:18:36,887 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:18:36,887 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:18:36,887 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:18:36,887 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:18:36,888 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:18:36,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:18:36,888 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 12:18:36,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:18:36,896 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:18:36,896 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:18:36,896 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 12:18:36,897 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 12:18:36,897 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 12:18:36,898 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 12:18:36,898 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:18:36,898 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:18:36,898 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:18:36,898 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:18:36,898 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 12:18:36,899 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:18:36,899 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:18:36,900 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 12:18:36,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:18:36,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 12:18:36,901 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 12:18:36,901 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e16d2ad47f8069122c38404dcdf9504ef10df900 [2018-12-09 12:18:36,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:18:36,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:18:36,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:18:36,931 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:18:36,932 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:18:36,932 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-12-09 12:18:36,976 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/72652396a/f56feef1492b45909ffaf316d5770c5f/FLAG77f697061 [2018-12-09 12:18:37,388 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:18:37,389 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-12-09 12:18:37,392 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/72652396a/f56feef1492b45909ffaf316d5770c5f/FLAG77f697061 [2018-12-09 12:18:37,400 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/72652396a/f56feef1492b45909ffaf316d5770c5f [2018-12-09 12:18:37,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:18:37,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:18:37,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:18:37,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:18:37,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:18:37,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643265e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37, skipping insertion in model container [2018-12-09 12:18:37,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:18:37,421 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:18:37,511 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:18:37,513 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:18:37,528 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:18:37,539 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:18:37,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37 WrapperNode [2018-12-09 12:18:37,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:18:37,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:18:37,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:18:37,540 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:18:37,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:18:37,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:18:37,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:18:37,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:18:37,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 12:18:37,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:18:37,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:18:37,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:18:37,609 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:18:37,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:18:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:18:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 12:18:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:18:37,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:18:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-09 12:18:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-09 12:18:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 12:18:37,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 12:18:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:18:37,790 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:18:37,790 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 12:18:37,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:37 BoogieIcfgContainer [2018-12-09 12:18:37,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:18:37,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:18:37,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:18:37,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:18:37,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:18:37" (1/3) ... [2018-12-09 12:18:37,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e84714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:37, skipping insertion in model container [2018-12-09 12:18:37,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (2/3) ... [2018-12-09 12:18:37,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e84714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:37, skipping insertion in model container [2018-12-09 12:18:37,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:37" (3/3) ... [2018-12-09 12:18:37,795 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d_true-unreach-call.c [2018-12-09 12:18:37,800 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:18:37,805 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 12:18:37,814 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 12:18:37,832 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:18:37,832 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 12:18:37,832 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:18:37,832 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:18:37,832 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:18:37,832 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:18:37,832 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:18:37,832 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:18:37,842 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-09 12:18:37,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 12:18:37,845 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:37,845 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:37,847 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:37,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:37,850 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2018-12-09 12:18:37,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:18:37,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:37,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:37,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:37,879 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:18:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:37,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:37,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:18:37,920 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:18:37,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 12:18:37,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 12:18:37,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:18:37,932 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-09 12:18:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:37,945 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-12-09 12:18:37,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 12:18:37,945 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 12:18:37,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:37,950 INFO L225 Difference]: With dead ends: 68 [2018-12-09 12:18:37,950 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 12:18:37,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:18:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 12:18:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 12:18:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 12:18:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 12:18:37,973 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-12-09 12:18:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:37,973 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 12:18:37,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 12:18:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 12:18:37,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 12:18:37,974 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:37,974 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:37,974 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:37,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:37,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2018-12-09 12:18:37,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:18:37,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:37,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:37,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:37,975 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:18:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:18:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:18:38,027 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 12:18:38,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:18:38 BoogieIcfgContainer [2018-12-09 12:18:38,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:18:38,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:18:38,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:18:38,043 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:18:38,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:37" (3/4) ... [2018-12-09 12:18:38,045 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 12:18:38,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:18:38,046 INFO L168 Benchmark]: Toolchain (without parser) took 644.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 958.8 MB in the beginning and 1.1 GB in the end (delta: -117.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:38,047 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:38,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.87 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 947.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:38,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.77 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 941.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:38,048 INFO L168 Benchmark]: Boogie Preprocessor took 53.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:38,048 INFO L168 Benchmark]: RCFGBuilder took 181.43 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:38,049 INFO L168 Benchmark]: TraceAbstraction took 251.62 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:38,049 INFO L168 Benchmark]: Witness Printer took 2.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:38,051 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.87 ms. Allocated memory is still 1.0 GB. Free memory was 958.8 MB in the beginning and 947.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.77 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 941.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.43 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 251.62 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 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: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someUnaryFLOAToperation at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = -0.0f; [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=9] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=9, x=9] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=2, x=9] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=2, x=9] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=9, exponent_less_127=255, signbit=-1, w=2, x=9] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=5, x=9] [L63] float res = trunc_float(x); [L66] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=5, res == -0.0f && __signbit_float(res) == 1=0, x=9] [L66] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L67] __VERIFIER_error() VAL [res=5, x=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 12:18:39,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:18:39,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:18:39,295 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:18:39,295 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:18:39,296 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:18:39,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:18:39,297 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:18:39,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:18:39,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:18:39,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:18:39,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:18:39,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:18:39,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:18:39,300 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:18:39,300 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:18:39,301 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:18:39,301 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:18:39,302 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:18:39,303 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:18:39,304 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:18:39,304 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:18:39,305 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:18:39,305 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:18:39,305 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:18:39,306 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:18:39,306 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:18:39,307 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:18:39,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:18:39,307 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:18:39,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:18:39,308 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:18:39,308 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:18:39,308 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:18:39,308 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:18:39,309 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:18:39,309 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 12:18:39,316 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:18:39,316 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:18:39,317 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:18:39,317 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:18:39,317 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 12:18:39,317 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 12:18:39,317 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 12:18:39,317 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 12:18:39,317 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 12:18:39,317 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 12:18:39,318 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 12:18:39,318 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 12:18:39,319 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:18:39,319 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:18:39,319 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:18:39,320 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 12:18:39,320 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 12:18:39,320 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:18:39,320 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 12:18:39,320 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 12:18:39,320 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e16d2ad47f8069122c38404dcdf9504ef10df900 [2018-12-09 12:18:39,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:18:39,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:18:39,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:18:39,348 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:18:39,348 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:18:39,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-12-09 12:18:39,382 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/955a77d7f/792e4f551f0a453c922baafad36f159f/FLAGd87a0639b [2018-12-09 12:18:39,822 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:18:39,823 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/sv-benchmarks/c/float-newlib/float_req_bl_1072d_true-unreach-call.c [2018-12-09 12:18:39,827 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/955a77d7f/792e4f551f0a453c922baafad36f159f/FLAGd87a0639b [2018-12-09 12:18:39,834 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/data/955a77d7f/792e4f551f0a453c922baafad36f159f [2018-12-09 12:18:39,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:18:39,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:18:39,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:18:39,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:18:39,839 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:18:39,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267733d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39, skipping insertion in model container [2018-12-09 12:18:39,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:18:39,855 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:18:39,948 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:18:39,951 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:18:39,967 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:18:39,981 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:18:39,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39 WrapperNode [2018-12-09 12:18:39,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:18:39,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:18:39,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:18:39,982 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:18:39,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:18:39,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:18:39,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:18:39,998 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:18:40,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:40,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:18:40,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:18:40,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:18:40,020 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:18:40,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:18:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:18:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:18:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-09 12:18:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-09 12:18:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 12:18:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 12:18:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 12:18:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 12:18:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:18:40,237 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 12:18:40,259 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 12:18:40,266 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:18:40,266 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 12:18:40,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:40 BoogieIcfgContainer [2018-12-09 12:18:40,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:18:40,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:18:40,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:18:40,269 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:18:40,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:18:39" (1/3) ... [2018-12-09 12:18:40,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b437e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:40, skipping insertion in model container [2018-12-09 12:18:40,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (2/3) ... [2018-12-09 12:18:40,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b437e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:40, skipping insertion in model container [2018-12-09 12:18:40,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:40" (3/3) ... [2018-12-09 12:18:40,271 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d_true-unreach-call.c [2018-12-09 12:18:40,277 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:18:40,281 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 12:18:40,293 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 12:18:40,309 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 12:18:40,310 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:18:40,310 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 12:18:40,310 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:18:40,310 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:18:40,310 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:18:40,310 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:18:40,310 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:18:40,310 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:18:40,319 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-09 12:18:40,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 12:18:40,323 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,323 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,324 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:40,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,327 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2018-12-09 12:18:40,330 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 12:18:40,330 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 12:18:40,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:40,393 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:18:40,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:18:40,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 12:18:40,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 12:18:40,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:18:40,412 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-09 12:18:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,425 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-12-09 12:18:40,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 12:18:40,425 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 12:18:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,434 INFO L225 Difference]: With dead ends: 68 [2018-12-09 12:18:40,434 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 12:18:40,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:18:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 12:18:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 12:18:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 12:18:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 12:18:40,460 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-12-09 12:18:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,460 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 12:18:40,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 12:18:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 12:18:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 12:18:40,461 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,461 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,461 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:40,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2018-12-09 12:18:40,462 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 12:18:40,462 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 12:18:40,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:40,608 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:18:40,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 12:18:40,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:18:40,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:18:40,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:18:40,616 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 7 states. [2018-12-09 12:18:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,900 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-09 12:18:40,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 12:18:40,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 12:18:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,902 INFO L225 Difference]: With dead ends: 52 [2018-12-09 12:18:40,902 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 12:18:40,903 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 12:18:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 12:18:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-09 12:18:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 12:18:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-12-09 12:18:40,906 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2018-12-09 12:18:40,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,907 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-12-09 12:18:40,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:18:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-12-09 12:18:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 12:18:40,907 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,907 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,907 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:40,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,908 INFO L82 PathProgramCache]: Analyzing trace with hash -2096519695, now seen corresponding path program 1 times [2018-12-09 12:18:40,908 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 12:18:40,908 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 12:18:40,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:41,009 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:18:41,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:41,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 12:18:41,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:18:41,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:18:41,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:18:41,017 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-12-09 12:18:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,269 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-12-09 12:18:41,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 12:18:41,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 12:18:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,270 INFO L225 Difference]: With dead ends: 49 [2018-12-09 12:18:41,270 INFO L226 Difference]: Without dead ends: 31 [2018-12-09 12:18:41,271 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-09 12:18:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-09 12:18:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-09 12:18:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-09 12:18:41,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-12-09 12:18:41,274 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2018-12-09 12:18:41,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,274 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-12-09 12:18:41,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:18:41,274 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-12-09 12:18:41,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 12:18:41,274 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,274 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,275 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:41,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1559687167, now seen corresponding path program 1 times [2018-12-09 12:18:41,275 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 12:18:41,275 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 12:18:41,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:41,364 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:18:41,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:41,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 12:18:41,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:18:41,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:18:41,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:18:41,371 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-12-09 12:18:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,448 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-12-09 12:18:41,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 12:18:41,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-12-09 12:18:41,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,449 INFO L225 Difference]: With dead ends: 34 [2018-12-09 12:18:41,449 INFO L226 Difference]: Without dead ends: 31 [2018-12-09 12:18:41,449 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 12:18:41,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-09 12:18:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-09 12:18:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-09 12:18:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-12-09 12:18:41,452 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 22 [2018-12-09 12:18:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,452 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-12-09 12:18:41,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:18:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-12-09 12:18:41,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 12:18:41,453 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,453 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,453 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:18:41,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1781626003, now seen corresponding path program 1 times [2018-12-09 12:18:41,453 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 12:18:41,454 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 12:18:41,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:41,781 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 12:18:41,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:41,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-12-09 12:18:41,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-09 12:18:41,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-09 12:18:41,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-09 12:18:41,788 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 15 states. [2018-12-09 12:18:42,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:42,431 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-12-09 12:18:42,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 12:18:42,432 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2018-12-09 12:18:42,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:42,432 INFO L225 Difference]: With dead ends: 31 [2018-12-09 12:18:42,433 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 12:18:42,433 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-12-09 12:18:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 12:18:42,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 12:18:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 12:18:42,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 12:18:42,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-12-09 12:18:42,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:42,434 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 12:18:42,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-09 12:18:42,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 12:18:42,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 12:18:42,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 12:18:42,564 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 12:18:42,564 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 12:18:42,564 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 12:18:42,564 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 12:18:42,564 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 12:18:42,564 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 12:18:42,564 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 12:18:42,565 INFO L444 ceAbstractionStarter]: At program point L66-1(line 66) the Hoare annotation is: (and (= main_~x~0 (fp.neg (_ +zero 8 24))) |main_#t~short10| (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483648 32) trunc_float_~w~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))))) [2018-12-09 12:18:42,565 INFO L448 ceAbstractionStarter]: For program point L66-2(line 66) no Hoare annotation was computed. [2018-12-09 12:18:42,565 INFO L444 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-12-09 12:18:42,565 INFO L448 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-12-09 12:18:42,565 INFO L448 ceAbstractionStarter]: For program point L66-4(lines 66 69) no Hoare annotation was computed. [2018-12-09 12:18:42,565 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-12-09 12:18:42,565 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-12-09 12:18:42,565 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-12-09 12:18:42,565 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (not (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-12-09 12:18:42,566 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) trunc_float_~w~0) trunc_float_~signbit~0) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 43 53) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 43 53) the Hoare annotation is: true [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 43 53) no Hoare annotation was computed. [2018-12-09 12:18:42,567 INFO L448 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-12-09 12:18:42,570 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,571 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,571 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,571 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,572 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,572 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,572 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,572 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,579 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,579 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,579 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,579 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,579 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,579 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:18:42 BoogieIcfgContainer [2018-12-09 12:18:42,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:18:42,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:18:42,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:18:42,582 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:18:42,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:40" (3/4) ... [2018-12-09 12:18:42,584 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 12:18:42,588 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 12:18:42,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 12:18:42,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-12-09 12:18:42,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-09 12:18:42,591 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-09 12:18:42,591 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 12:18:42,591 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 12:18:42,607 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 12:18:42,607 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 12:18:42,608 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-12-09 12:18:42,608 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-12-09 12:18:42,619 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1f7d046e-b2b8-4cec-b7e6-70446d7427da/bin-2019/utaipan/witness.graphml [2018-12-09 12:18:42,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:18:42,619 INFO L168 Benchmark]: Toolchain (without parser) took 2782.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.7 MB in the beginning and 873.9 MB in the end (delta: 70.8 MB). Peak memory consumption was 212.3 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:42,620 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:42,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.48 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:42,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.68 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:42,621 INFO L168 Benchmark]: Boogie Preprocessor took 21.71 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:42,621 INFO L168 Benchmark]: RCFGBuilder took 246.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:42,621 INFO L168 Benchmark]: TraceAbstraction took 2314.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.8 MB in the end (delta: 230.3 MB). Peak memory consumption was 230.3 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:42,621 INFO L168 Benchmark]: Witness Printer took 37.14 ms. Allocated memory is still 1.2 GB. Free memory was 880.8 MB in the beginning and 873.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:42,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.48 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 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 15.68 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.71 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 246.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2314.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.8 MB in the end (delta: 230.3 MB). Peak memory consumption was 230.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.14 ms. Allocated memory is still 1.2 GB. Free memory was 880.8 MB in the beginning and 873.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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: 24]: Loop Invariant [2018-12-09 12:18:42,625 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,626 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,627 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-09 12:18:42,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 106 SDslu, 507 SDs, 0 SdLazy, 229 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 152 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 31 QuantifiedInterpolants, 19515 SizeOfPredicates, 21 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...