./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_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_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 62b7dc6392161c86b172facfcbc82e25c42dc2f4 ..................................................................................................................................................................................................................................................................................................................................... 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_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 62b7dc6392161c86b172facfcbc82e25c42dc2f4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:04:24,856 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 04:04:24,857 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 04:04:24,863 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 04:04:24,863 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 04:04:24,863 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 04:04:24,864 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 04:04:24,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 04:04:24,866 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 04:04:24,866 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 04:04:24,866 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 04:04:24,867 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 04:04:24,867 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 04:04:24,868 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 04:04:24,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 04:04:24,868 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 04:04:24,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 04:04:24,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 04:04:24,871 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 04:04:24,871 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 04:04:24,872 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 04:04:24,872 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 04:04:24,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 04:04:24,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 04:04:24,874 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 04:04:24,874 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 04:04:24,875 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 04:04:24,875 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 04:04:24,876 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 04:04:24,876 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 04:04:24,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 04:04:24,877 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 04:04:24,877 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 04:04:24,877 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 04:04:24,878 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 04:04:24,878 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 04:04:24,878 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 04:04:24,885 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 04:04:24,885 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 04:04:24,886 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 04:04:24,886 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 04:04:24,886 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 04:04:24,886 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 04:04:24,887 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 04:04:24,887 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 04:04:24,888 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 04:04:24,888 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 04:04:24,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 04:04:24,888 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_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62b7dc6392161c86b172facfcbc82e25c42dc2f4 [2018-12-09 04:04:24,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 04:04:24,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 04:04:24,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 04:04:24,920 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 04:04:24,920 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 04:04:24,920 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 04:04:24,957 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/39cdc82b0/12adbe8df9d349f7834eea9e9b85f5b8/FLAG8834845ce [2018-12-09 04:04:25,389 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 04:04:25,389 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 04:04:25,393 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/39cdc82b0/12adbe8df9d349f7834eea9e9b85f5b8/FLAG8834845ce [2018-12-09 04:04:25,402 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/39cdc82b0/12adbe8df9d349f7834eea9e9b85f5b8 [2018-12-09 04:04:25,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 04:04:25,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 04:04:25,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 04:04:25,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 04:04:25,408 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 04:04:25,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ddcec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25, skipping insertion in model container [2018-12-09 04:04:25,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 04:04:25,428 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 04:04:25,524 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:04:25,526 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 04:04:25,547 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:04:25,559 INFO L195 MainTranslator]: Completed translation [2018-12-09 04:04:25,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25 WrapperNode [2018-12-09 04:04:25,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 04:04:25,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 04:04:25,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 04:04:25,560 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 04:04:25,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 04:04:25,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 04:04:25,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 04:04:25,606 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 04:04:25,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... [2018-12-09 04:04:25,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 04:04:25,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 04:04:25,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 04:04:25,627 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 04:04:25,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 04:04:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 04:04:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 04:04:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 04:04:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 04:04:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 04:04:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 04:04:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 04:04:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 04:04:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 04:04:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 04:04:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 04:04:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 04:04:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 04:04:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 04:04:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 04:04:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 04:04:25,830 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 04:04:25,830 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 04:04:25,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:04:25 BoogieIcfgContainer [2018-12-09 04:04:25,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 04:04:25,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 04:04:25,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 04:04:25,833 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 04:04:25,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:04:25" (1/3) ... [2018-12-09 04:04:25,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107ad2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:04:25, skipping insertion in model container [2018-12-09 04:04:25,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:25" (2/3) ... [2018-12-09 04:04:25,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107ad2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:04:25, skipping insertion in model container [2018-12-09 04:04:25,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:04:25" (3/3) ... [2018-12-09 04:04:25,835 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b_true-unreach-call.c [2018-12-09 04:04:25,844 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 04:04:25,850 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 04:04:25,859 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 04:04:25,875 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 04:04:25,876 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 04:04:25,876 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 04:04:25,876 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 04:04:25,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 04:04:25,876 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 04:04:25,876 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 04:04:25,876 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 04:04:25,876 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 04:04:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-09 04:04:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 04:04:25,890 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:25,890 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:04:25,892 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:25,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:25,895 INFO L82 PathProgramCache]: Analyzing trace with hash -2000118749, now seen corresponding path program 1 times [2018-12-09 04:04:25,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 04:04:25,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 04:04:25,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:04:25,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:25,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:04:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:04:25,986 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 04:04:25,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:04:25,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 04:04:25,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 04:04:25,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 04:04:25,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 04:04:25,999 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-09 04:04:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:04:26,012 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2018-12-09 04:04:26,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 04:04:26,013 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-09 04:04:26,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:04:26,018 INFO L225 Difference]: With dead ends: 92 [2018-12-09 04:04:26,018 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 04:04:26,020 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 04:04:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 04:04:26,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 04:04:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 04:04:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2018-12-09 04:04:26,042 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2018-12-09 04:04:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:04:26,042 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2018-12-09 04:04:26,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 04:04:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-12-09 04:04:26,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 04:04:26,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:26,043 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] [2018-12-09 04:04:26,043 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:26,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:26,044 INFO L82 PathProgramCache]: Analyzing trace with hash 784957124, now seen corresponding path program 1 times [2018-12-09 04:04:26,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 04:04:26,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 04:04:26,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:04:26,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:26,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 04:04:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 04:04:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 04:04:26,146 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 04:04:26,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:04:26 BoogieIcfgContainer [2018-12-09 04:04:26,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 04:04:26,174 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 04:04:26,174 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 04:04:26,174 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 04:04:26,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:04:25" (3/4) ... [2018-12-09 04:04:26,178 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 04:04:26,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 04:04:26,178 INFO L168 Benchmark]: Toolchain (without parser) took 774.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -124.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:26,180 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 974.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:04:26,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.0 MB in the beginning and 935.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:26,180 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -207.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:26,181 INFO L168 Benchmark]: Boogie Preprocessor took 20.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:26,181 INFO L168 Benchmark]: RCFGBuilder took 204.29 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:26,182 INFO L168 Benchmark]: TraceAbstraction took 342.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:26,182 INFO L168 Benchmark]: Witness Printer took 3.80 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 04:04:26,185 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 974.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.0 MB in the beginning and 935.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -207.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 204.29 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 342.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.80 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: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 89, overapproximation of someBinaryArithmeticDOUBLEoperation at line 101, overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=15032385542, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double x = -1.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] CALL, EXPR floor_double(x) VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=15032385547] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=15032385547] [L26] COND TRUE j0 < 20 VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=0, x=15032385547] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=0, x=15032385547] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=15032385547, \result=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=0, x=15032385547] [L102] RET, EXPR floor_double(x) VAL [floor_double(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=15032385547] [L102] double res = floor_double(x); [L105] CALL, EXPR isinf_double(res) VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L81] __int32_t hx, lx; VAL [\old(x)=15032385547, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=15032385547] [L83] ieee_double_shape_type ew_u; [L84] ew_u.value = (x) [L85] EXPR ew_u.parts.msw [L85] (hx) = ew_u.parts.msw [L86] EXPR ew_u.parts.lsw [L86] (lx) = ew_u.parts.lsw [L88] hx &= 0x7fffffff [L89] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L90] hx = 0x7ff00000 - hx [L91] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=15032385547, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=-2147483648, x=15032385547] [L105] RET, EXPR isinf_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=15032385547, x=15032385547] [L105] COND TRUE !isinf_double(res) [L106] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=15032385547, x=15032385547] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 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=50occurred 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, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 04:04:27,460 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 04:04:27,461 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 04:04:27,467 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 04:04:27,467 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 04:04:27,468 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 04:04:27,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 04:04:27,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 04:04:27,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 04:04:27,470 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 04:04:27,471 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 04:04:27,471 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 04:04:27,471 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 04:04:27,472 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 04:04:27,472 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 04:04:27,473 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 04:04:27,473 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 04:04:27,474 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 04:04:27,475 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 04:04:27,475 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 04:04:27,476 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 04:04:27,476 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 04:04:27,477 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 04:04:27,478 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 04:04:27,478 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 04:04:27,478 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 04:04:27,479 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 04:04:27,479 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 04:04:27,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 04:04:27,480 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 04:04:27,480 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 04:04:27,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 04:04:27,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 04:04:27,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 04:04:27,481 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 04:04:27,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 04:04:27,481 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 04:04:27,488 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 04:04:27,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 04:04:27,489 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 04:04:27,489 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 04:04:27,489 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 04:04:27,490 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 04:04:27,490 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 04:04:27,491 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 04:04:27,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 04:04:27,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 04:04:27,492 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 04:04:27,492 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 04:04:27,492 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 04:04:27,492 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 04:04:27,492 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 04:04:27,492 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 04:04:27,492 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_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62b7dc6392161c86b172facfcbc82e25c42dc2f4 [2018-12-09 04:04:27,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 04:04:27,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 04:04:27,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 04:04:27,519 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 04:04:27,519 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 04:04:27,520 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 04:04:27,555 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/b002cea0b/1a2345fa1e284ab6ad2ffb32a456aa82/FLAG3769c9b55 [2018-12-09 04:04:27,902 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 04:04:27,903 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 04:04:27,907 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/b002cea0b/1a2345fa1e284ab6ad2ffb32a456aa82/FLAG3769c9b55 [2018-12-09 04:04:27,915 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/data/b002cea0b/1a2345fa1e284ab6ad2ffb32a456aa82 [2018-12-09 04:04:27,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 04:04:27,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 04:04:27,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 04:04:27,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 04:04:27,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 04:04:27,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:04:27" (1/1) ... [2018-12-09 04:04:27,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:27, skipping insertion in model container [2018-12-09 04:04:27,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:04:27" (1/1) ... [2018-12-09 04:04:27,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 04:04:27,939 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 04:04:28,053 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:04:28,058 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 04:04:28,085 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:04:28,105 INFO L195 MainTranslator]: Completed translation [2018-12-09 04:04:28,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28 WrapperNode [2018-12-09 04:04:28,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 04:04:28,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 04:04:28,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 04:04:28,106 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 04:04:28,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 04:04:28,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 04:04:28,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 04:04:28,126 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 04:04:28,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... [2018-12-09 04:04:28,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 04:04:28,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 04:04:28,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 04:04:28,185 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 04:04:28,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 04:04:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 04:04:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 04:04:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 04:04:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 04:04:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 04:04:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 04:04:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 04:04:28,217 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 04:04:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 04:04:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 04:04:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 04:04:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 04:04:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 04:04:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 04:04:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 04:04:28,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 04:04:28,336 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 04:04:29,197 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 04:04:29,216 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 04:04:29,216 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 04:04:29,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:04:29 BoogieIcfgContainer [2018-12-09 04:04:29,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 04:04:29,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 04:04:29,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 04:04:29,219 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 04:04:29,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:04:27" (1/3) ... [2018-12-09 04:04:29,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d485179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:04:29, skipping insertion in model container [2018-12-09 04:04:29,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:04:28" (2/3) ... [2018-12-09 04:04:29,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d485179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:04:29, skipping insertion in model container [2018-12-09 04:04:29,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:04:29" (3/3) ... [2018-12-09 04:04:29,221 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b_true-unreach-call.c [2018-12-09 04:04:29,226 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 04:04:29,230 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 04:04:29,239 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 04:04:29,255 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 04:04:29,255 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 04:04:29,255 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 04:04:29,256 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 04:04:29,256 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 04:04:29,256 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 04:04:29,256 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 04:04:29,256 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 04:04:29,256 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 04:04:29,265 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-12-09 04:04:29,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 04:04:29,269 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:29,269 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:04:29,270 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:29,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:29,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1867492039, now seen corresponding path program 1 times [2018-12-09 04:04:29,276 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 04:04:29,276 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 04:04:29,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:04:29,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:04:29,331 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 04:04:29,331 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 04:04:29,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:04:29,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 04:04:29,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 04:04:29,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 04:04:29,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 04:04:29,351 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-12-09 04:04:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:04:29,365 INFO L93 Difference]: Finished difference Result 90 states and 133 transitions. [2018-12-09 04:04:29,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 04:04:29,366 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-09 04:04:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:04:29,371 INFO L225 Difference]: With dead ends: 90 [2018-12-09 04:04:29,371 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 04:04:29,373 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 04:04:29,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 04:04:29,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-09 04:04:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-09 04:04:29,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2018-12-09 04:04:29,396 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 24 [2018-12-09 04:04:29,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:04:29,396 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2018-12-09 04:04:29,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 04:04:29,397 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-12-09 04:04:29,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 04:04:29,397 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:29,397 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:04:29,398 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:29,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:29,398 INFO L82 PathProgramCache]: Analyzing trace with hash 367307714, now seen corresponding path program 1 times [2018-12-09 04:04:29,398 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 04:04:29,398 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 04:04:29,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:04:29,479 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:04:29,611 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 04:04:29,611 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 04:04:29,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:04:29,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 04:04:29,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 04:04:29,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 04:04:29,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 04:04:29,625 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 7 states. [2018-12-09 04:04:31,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:04:31,745 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2018-12-09 04:04:31,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 04:04:31,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 04:04:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:04:31,748 INFO L225 Difference]: With dead ends: 78 [2018-12-09 04:04:31,748 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 04:04:31,749 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-09 04:04:31,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 04:04:31,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2018-12-09 04:04:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 04:04:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-12-09 04:04:31,753 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 26 [2018-12-09 04:04:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:04:31,753 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-12-09 04:04:31,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 04:04:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-12-09 04:04:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 04:04:31,754 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:31,754 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:04:31,754 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:31,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:31,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1950262155, now seen corresponding path program 1 times [2018-12-09 04:04:31,755 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 04:04:31,755 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 04:04:31,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:04:31,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:04:31,909 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 04:04:31,909 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 04:04:31,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:04:31,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 04:04:31,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 04:04:31,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 04:04:31,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 04:04:31,918 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2018-12-09 04:04:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:04:32,930 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-12-09 04:04:32,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 04:04:32,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 04:04:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:04:32,932 INFO L225 Difference]: With dead ends: 59 [2018-12-09 04:04:32,932 INFO L226 Difference]: Without dead ends: 27 [2018-12-09 04:04:32,932 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-12-09 04:04:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-09 04:04:32,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-09 04:04:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-09 04:04:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-12-09 04:04:32,935 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2018-12-09 04:04:32,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:04:32,936 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-12-09 04:04:32,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 04:04:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-09 04:04:32,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 04:04:32,936 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:32,937 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:04:32,937 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:32,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:32,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1356700012, now seen corresponding path program 1 times [2018-12-09 04:04:32,937 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 04:04:32,937 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 04:04:32,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:04:32,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:04:33,079 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 04:04:33,079 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 04:04:33,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:04:33,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 04:04:33,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 04:04:33,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 04:04:33,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 04:04:33,087 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 7 states. [2018-12-09 04:04:33,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:04:33,488 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2018-12-09 04:04:33,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 04:04:33,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 04:04:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:04:33,490 INFO L225 Difference]: With dead ends: 40 [2018-12-09 04:04:33,490 INFO L226 Difference]: Without dead ends: 27 [2018-12-09 04:04:33,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 04:04:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-09 04:04:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-09 04:04:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-09 04:04:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-09 04:04:33,493 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-12-09 04:04:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:04:33,493 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-09 04:04:33,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 04:04:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-09 04:04:33,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 04:04:33,493 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 04:04:33,494 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 04:04:33,494 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 04:04:33,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:04:33,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1650103019, now seen corresponding path program 1 times [2018-12-09 04:04:33,494 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 04:04:33,494 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 04:04:33,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 04:04:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:04:33,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 04:04:34,138 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 04:04:34,140 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 04:04:34,141 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 04:04:34,141 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 04:04:34,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-12-09 04:04:34,235 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 04:04:34,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 63 [2018-12-09 04:04:34,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-12-09 04:04:34,258 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,282 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-12-09 04:04:34,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2018-12-09 04:04:34,314 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,325 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,340 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-12-09 04:04:34,345 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-12-09 04:04:34,346 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,347 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,355 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 04:04:34,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 04:04:34,368 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:71, output treesize:27 [2018-12-09 04:04:35,056 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 04:04:35,056 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 04:04:35,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 04:04:35,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 04:04:35,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 04:04:35,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 04:04:35,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 04:04:35,066 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 11 states. [2018-12-09 04:04:36,371 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 04:04:37,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 04:04:37,605 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-09 04:04:37,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 04:04:37,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-09 04:04:37,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 04:04:37,605 INFO L225 Difference]: With dead ends: 27 [2018-12-09 04:04:37,605 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 04:04:37,606 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-09 04:04:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 04:04:37,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 04:04:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 04:04:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 04:04:37,606 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-09 04:04:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 04:04:37,606 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 04:04:37,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 04:04:37,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 04:04:37,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 04:04:37,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 04:04:37,654 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-12-09 04:04:37,654 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-12-09 04:04:37,654 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-12-09 04:04:37,654 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-09 04:04:37,654 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= floor_double_~x |floor_double_#in~x|) [2018-12-09 04:04:37,654 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-12-09 04:04:37,655 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L82-1(lines 82 87) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L444 ceAbstractionStarter]: At program point L82-2(lines 82 87) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 80 92) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 82 87) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 80 92) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 80 92) the Hoare annotation is: true [2018-12-09 04:04:37,656 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 04:04:37,656 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 04:04:37,657 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 04:04:37,657 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 94 111) the Hoare annotation is: true [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 94 111) no Hoare annotation was computed. [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 04:04:37,657 INFO L444 ceAbstractionStarter]: At program point L105(line 105) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= .cse0 main_~x~0))) [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 94 111) no Hoare annotation was computed. [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 105 108) no Hoare annotation was computed. [2018-12-09 04:04:37,657 INFO L444 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0) [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-12-09 04:04:37,657 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-12-09 04:04:37,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:04:37 BoogieIcfgContainer [2018-12-09 04:04:37,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 04:04:37,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 04:04:37,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 04:04:37,665 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 04:04:37,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:04:29" (3/4) ... [2018-12-09 04:04:37,668 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 04:04:37,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-12-09 04:04:37,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 04:04:37,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-12-09 04:04:37,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 04:04:37,675 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-12-09 04:04:37,676 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 04:04:37,676 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 04:04:37,692 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 04:04:37,692 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 04:04:37,712 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_32be24e3-995d-4baf-ac35-31cba9091b4a/bin-2019/uautomizer/witness.graphml [2018-12-09 04:04:37,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 04:04:37,712 INFO L168 Benchmark]: Toolchain (without parser) took 9794.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 942.0 MB in the beginning and 837.6 MB in the end (delta: 104.5 MB). Peak memory consumption was 239.7 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:37,713 INFO L168 Benchmark]: CDTParser took 0.11 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 04:04:37,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.13 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:37,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.12 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:04:37,713 INFO L168 Benchmark]: Boogie Preprocessor took 59.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:37,714 INFO L168 Benchmark]: RCFGBuilder took 1031.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:37,714 INFO L168 Benchmark]: TraceAbstraction took 8448.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 844.4 MB in the end (delta: 245.3 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:37,714 INFO L168 Benchmark]: Witness Printer took 46.62 ms. Allocated memory is still 1.2 GB. Free memory was 844.4 MB in the beginning and 837.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 04:04:37,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 187.13 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.12 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1031.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8448.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 844.4 MB in the end (delta: 245.3 MB). Peak memory consumption was 245.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.62 ms. Allocated memory is still 1.2 GB. Free memory was 844.4 MB in the beginning and 837.6 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.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 19]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 8.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 6.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 155 SDtfs, 245 SDslu, 414 SDs, 0 SdLazy, 253 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 26 QuantifiedInterpolants, 21354 SizeOfPredicates, 18 NumberOfNonLiveVariables, 408 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...