./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_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 19:10:49,126 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:10:49,127 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:10:49,133 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:10:49,133 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:10:49,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:10:49,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:10:49,135 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:10:49,136 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:10:49,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:10:49,137 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:10:49,137 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:10:49,137 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:10:49,138 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:10:49,138 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:10:49,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:10:49,139 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:10:49,140 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:10:49,141 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:10:49,142 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:10:49,142 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:10:49,143 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:10:49,144 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:10:49,144 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:10:49,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:10:49,145 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:10:49,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:10:49,146 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:10:49,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:10:49,146 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:10:49,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:10:49,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:10:49,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:10:49,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:10:49,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:10:49,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:10:49,148 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:10:49,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:10:49,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:10:49,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:10:49,156 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:10:49,156 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:10:49,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:10:49,157 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:10:49,158 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:10:49,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:10:49,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:10:49,159 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:10:49,159 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:10:49,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:10:49,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:10:49,159 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:10:49,159 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62b7dc6392161c86b172facfcbc82e25c42dc2f4 [2018-12-09 19:10:49,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:10:49,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:10:49,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:10:49,190 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:10:49,190 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:10:49,191 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 19:10:49,237 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/9bb8b225d/e9af1d6bf53e4e16928e16093009a8b9/FLAGb35dc5cb3 [2018-12-09 19:10:49,658 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:10:49,658 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 19:10:49,662 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/9bb8b225d/e9af1d6bf53e4e16928e16093009a8b9/FLAGb35dc5cb3 [2018-12-09 19:10:49,670 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/9bb8b225d/e9af1d6bf53e4e16928e16093009a8b9 [2018-12-09 19:10:49,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:10:49,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:10:49,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:10:49,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:10:49,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:10:49,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697bc169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49, skipping insertion in model container [2018-12-09 19:10:49,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:10:49,692 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:10:49,786 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:10:49,788 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:10:49,807 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:10:49,819 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:10:49,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49 WrapperNode [2018-12-09 19:10:49,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:10:49,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:10:49,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:10:49,820 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:10:49,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:10:49,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:10:49,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:10:49,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:10:49,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... [2018-12-09 19:10:49,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:10:49,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:10:49,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:10:49,885 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:10:49,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:10:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 19:10:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:10:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 19:10:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:10:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:10:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:10:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:10:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:10:50,107 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:10:50,107 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:10:50,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:10:50 BoogieIcfgContainer [2018-12-09 19:10:50,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:10:50,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:10:50,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:10:50,110 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:10:50,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:10:49" (1/3) ... [2018-12-09 19:10:50,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b14450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:10:50, skipping insertion in model container [2018-12-09 19:10:50,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:49" (2/3) ... [2018-12-09 19:10:50,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b14450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:10:50, skipping insertion in model container [2018-12-09 19:10:50,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:10:50" (3/3) ... [2018-12-09 19:10:50,113 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b_true-unreach-call.c [2018-12-09 19:10:50,119 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:10:50,125 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:10:50,135 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:10:50,154 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:10:50,155 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:10:50,155 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:10:50,155 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:10:50,155 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:10:50,155 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:10:50,155 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:10:50,155 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:10:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-09 19:10:50,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 19:10:50,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:50,170 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 19:10:50,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:50,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:50,175 INFO L82 PathProgramCache]: Analyzing trace with hash -2000118749, now seen corresponding path program 1 times [2018-12-09 19:10:50,176 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:10:50,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:10:50,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:50,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:10:50,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:10:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:10:50,261 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 19:10:50,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:10:50,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:10:50,263 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:10:50,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:10:50,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:10:50,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:10:50,275 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-09 19:10:50,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:10:50,289 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2018-12-09 19:10:50,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:10:50,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-09 19:10:50,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:10:50,296 INFO L225 Difference]: With dead ends: 92 [2018-12-09 19:10:50,296 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 19:10:50,298 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 19:10:50,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 19:10:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 19:10:50,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 19:10:50,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2018-12-09 19:10:50,321 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2018-12-09 19:10:50,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:10:50,321 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2018-12-09 19:10:50,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:10:50,322 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-12-09 19:10:50,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 19:10:50,322 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:50,322 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 19:10:50,323 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:50,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:50,323 INFO L82 PathProgramCache]: Analyzing trace with hash 784957124, now seen corresponding path program 1 times [2018-12-09 19:10:50,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:10:50,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:10:50,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:50,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:10:50,324 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:10:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:10:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:10:50,405 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:10:50,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:10:50 BoogieIcfgContainer [2018-12-09 19:10:50,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:10:50,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:10:50,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:10:50,424 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:10:50,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:10:50" (3/4) ... [2018-12-09 19:10:50,427 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:10:50,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:10:50,427 INFO L168 Benchmark]: Toolchain (without parser) took 755.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -95.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:10:50,428 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:10:50,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.37 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:10:50,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:10:50,429 INFO L168 Benchmark]: Boogie Preprocessor took 20.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:10:50,430 INFO L168 Benchmark]: RCFGBuilder took 222.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:10:50,430 INFO L168 Benchmark]: TraceAbstraction took 315.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:10:50,431 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:10:50,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.37 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 222.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 315.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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, 0.2s 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 19:10:51,756 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:10:51,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:10:51,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:10:51,763 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:10:51,764 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:10:51,764 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:10:51,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:10:51,766 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:10:51,766 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:10:51,767 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:10:51,767 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:10:51,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:10:51,768 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:10:51,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:10:51,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:10:51,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:10:51,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:10:51,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:10:51,771 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:10:51,772 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:10:51,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:10:51,773 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:10:51,774 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:10:51,774 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:10:51,774 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:10:51,775 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:10:51,775 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:10:51,775 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:10:51,776 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:10:51,776 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:10:51,776 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:10:51,776 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:10:51,777 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:10:51,777 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:10:51,777 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:10:51,777 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:10:51,785 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:10:51,785 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:10:51,785 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:10:51,786 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:10:51,786 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:10:51,786 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:10:51,786 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:10:51,786 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:10:51,786 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:10:51,786 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:10:51,786 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:10:51,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:10:51,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:10:51,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:10:51,788 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:10:51,789 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_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62b7dc6392161c86b172facfcbc82e25c42dc2f4 [2018-12-09 19:10:51,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:10:51,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:10:51,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:10:51,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:10:51,818 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:10:51,819 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 19:10:51,854 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/6446731f6/4f99f22d793f4d51812d0daf135eeff2/FLAG7a917a576 [2018-12-09 19:10:52,268 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:10:52,269 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/sv-benchmarks/c/float-newlib/double_req_bl_1052b_true-unreach-call.c [2018-12-09 19:10:52,274 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/6446731f6/4f99f22d793f4d51812d0daf135eeff2/FLAG7a917a576 [2018-12-09 19:10:52,282 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/data/6446731f6/4f99f22d793f4d51812d0daf135eeff2 [2018-12-09 19:10:52,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:10:52,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:10:52,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:10:52,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:10:52,289 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:10:52,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,291 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 07:10:52, skipping insertion in model container [2018-12-09 19:10:52,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:10:52,313 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:10:52,425 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:10:52,429 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:10:52,452 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:10:52,471 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:10:52,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52 WrapperNode [2018-12-09 19:10:52,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:10:52,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:10:52,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:10:52,472 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:10:52,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:10:52,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:10:52,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:10:52,490 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:10:52,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... [2018-12-09 19:10:52,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:10:52,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:10:52,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:10:52,543 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:10:52,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 19:10:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:10:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 19:10:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 19:10:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 19:10:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:10:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:10:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:10:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:10:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 19:10:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:10:52,698 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:10:53,565 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:10:53,584 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:10:53,585 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:10:53,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:10:53 BoogieIcfgContainer [2018-12-09 19:10:53,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:10:53,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:10:53,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:10:53,587 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:10:53,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:10:52" (1/3) ... [2018-12-09 19:10:53,588 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 07:10:53, skipping insertion in model container [2018-12-09 19:10:53,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:10:52" (2/3) ... [2018-12-09 19:10:53,588 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 07:10:53, skipping insertion in model container [2018-12-09 19:10:53,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:10:53" (3/3) ... [2018-12-09 19:10:53,589 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b_true-unreach-call.c [2018-12-09 19:10:53,595 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:10:53,600 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:10:53,609 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:10:53,627 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:10:53,628 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:10:53,628 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:10:53,628 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:10:53,628 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:10:53,628 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:10:53,628 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:10:53,628 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:10:53,628 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:10:53,638 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-12-09 19:10:53,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 19:10:53,642 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:53,642 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 19:10:53,644 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:53,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:53,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1867492039, now seen corresponding path program 1 times [2018-12-09 19:10:53,650 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:10:53,650 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 19:10:53,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:10:53,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:10:53,717 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 19:10:53,717 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:10:53,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:10:53,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:10:53,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:10:53,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:10:53,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:10:53,737 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-12-09 19:10:53,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:10:53,751 INFO L93 Difference]: Finished difference Result 90 states and 133 transitions. [2018-12-09 19:10:53,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:10:53,752 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-09 19:10:53,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:10:53,758 INFO L225 Difference]: With dead ends: 90 [2018-12-09 19:10:53,758 INFO L226 Difference]: Without dead ends: 45 [2018-12-09 19:10:53,760 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 19:10:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-09 19:10:53,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-09 19:10:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-09 19:10:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2018-12-09 19:10:53,783 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 24 [2018-12-09 19:10:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:10:53,783 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2018-12-09 19:10:53,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:10:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-12-09 19:10:53,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:10:53,784 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:53,784 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 19:10:53,784 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:53,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:53,785 INFO L82 PathProgramCache]: Analyzing trace with hash 367307714, now seen corresponding path program 1 times [2018-12-09 19:10:53,785 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:10:53,785 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 19:10:53,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:10:53,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:10:53,973 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 19:10:53,973 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:10:53,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:10:53,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:10:53,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:10:53,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:10:53,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:10:53,986 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 7 states. [2018-12-09 19:10:56,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:10:56,173 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2018-12-09 19:10:56,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 19:10:56,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 19:10:56,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:10:56,177 INFO L225 Difference]: With dead ends: 78 [2018-12-09 19:10:56,177 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 19:10:56,178 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 19:10:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 19:10:56,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2018-12-09 19:10:56,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 19:10:56,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-12-09 19:10:56,183 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 26 [2018-12-09 19:10:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:10:56,183 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-12-09 19:10:56,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:10:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-12-09 19:10:56,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:10:56,184 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:56,184 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 19:10:56,185 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:56,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:56,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1950262155, now seen corresponding path program 1 times [2018-12-09 19:10:56,185 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:10:56,185 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 19:10:56,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:10:56,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:10:56,384 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 19:10:56,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:10:56,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:10:56,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:10:56,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:10:56,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:10:56,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:10:56,398 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2018-12-09 19:10:57,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:10:57,422 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-12-09 19:10:57,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 19:10:57,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 19:10:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:10:57,423 INFO L225 Difference]: With dead ends: 59 [2018-12-09 19:10:57,423 INFO L226 Difference]: Without dead ends: 27 [2018-12-09 19:10:57,424 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 19:10:57,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-09 19:10:57,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-09 19:10:57,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-09 19:10:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-12-09 19:10:57,427 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2018-12-09 19:10:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:10:57,427 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-12-09 19:10:57,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:10:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-09 19:10:57,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:10:57,428 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:57,428 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 19:10:57,429 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:57,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:57,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1356700012, now seen corresponding path program 1 times [2018-12-09 19:10:57,429 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:10:57,429 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 19:10:57,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:10:57,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:10:57,585 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 19:10:57,585 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:10:57,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:10:57,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:10:57,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:10:57,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:10:57,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:10:57,593 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 7 states. [2018-12-09 19:10:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:10:57,990 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2018-12-09 19:10:57,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:10:57,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 19:10:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:10:57,992 INFO L225 Difference]: With dead ends: 40 [2018-12-09 19:10:57,992 INFO L226 Difference]: Without dead ends: 27 [2018-12-09 19:10:57,992 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 19:10:57,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-09 19:10:57,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-09 19:10:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-09 19:10:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-09 19:10:57,995 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-12-09 19:10:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:10:57,995 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-09 19:10:57,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:10:57,995 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-09 19:10:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 19:10:57,995 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:10:57,996 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 19:10:57,996 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:10:57,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:10:57,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1650103019, now seen corresponding path program 1 times [2018-12-09 19:10:57,996 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:10:57,996 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 19:10:57,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:10:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:10:58,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:10:58,620 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:10:58,622 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:10:58,622 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:10:58,623 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:10:58,627 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 19:10:58,709 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 19:10:58,722 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 19:10:58,734 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 19:10:58,735 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 19:10:58,756 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:10:58,779 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 19:10:58,785 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 19:10:58,786 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 19:10:58,797 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:10:58,813 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 19:10:58,817 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 19:10:58,818 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 19:10:58,819 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 19:10:58,827 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 19:10:58,840 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 19:10:58,840 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:71, output treesize:27 [2018-12-09 19:10:59,541 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 19:10:59,541 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:10:59,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:10:59,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 19:10:59,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:10:59,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:10:59,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:10:59,550 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 11 states. [2018-12-09 19:11:00,843 WARN L180 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 19:11:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:11:02,075 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-09 19:11:02,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 19:11:02,075 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-09 19:11:02,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:11:02,076 INFO L225 Difference]: With dead ends: 27 [2018-12-09 19:11:02,076 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:11:02,076 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 19:11:02,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:11:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:11:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:11:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:11:02,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-09 19:11:02,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:11:02,077 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:11:02,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:11:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:11:02,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:11:02,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:11:02,130 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-12-09 19:11:02,130 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-12-09 19:11:02,130 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-12-09 19:11:02,130 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-09 19:11:02,130 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 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-12-09 19:11:02,131 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L82-1(lines 82 87) no Hoare annotation was computed. [2018-12-09 19:11:02,132 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 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 80 92) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 82 87) no Hoare annotation was computed. [2018-12-09 19:11:02,132 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 80 92) no Hoare annotation was computed. [2018-12-09 19:11:02,133 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 80 92) the Hoare annotation is: true [2018-12-09 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:11:02,133 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:11:02,133 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:11:02,133 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 94 111) the Hoare annotation is: true [2018-12-09 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 94 111) no Hoare annotation was computed. [2018-12-09 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 19:11:02,133 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 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 94 111) no Hoare annotation was computed. [2018-12-09 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 105 108) no Hoare annotation was computed. [2018-12-09 19:11:02,133 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 19:11:02,133 INFO L448 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-12-09 19:11:02,134 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-12-09 19:11:02,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:11:02 BoogieIcfgContainer [2018-12-09 19:11:02,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:11:02,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:11:02,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:11:02,142 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:11:02,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:10:53" (3/4) ... [2018-12-09 19:11:02,144 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:11:02,148 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-12-09 19:11:02,148 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:11:02,148 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-12-09 19:11:02,149 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:11:02,152 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-12-09 19:11:02,152 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 19:11:02,152 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:11:02,168 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 19:11:02,169 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 19:11:02,184 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bd35cce0-45e8-40dd-a90b-9b6fe200dc58/bin-2019/utaipan/witness.graphml [2018-12-09 19:11:02,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:11:02,185 INFO L168 Benchmark]: Toolchain (without parser) took 9900.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 841.2 MB in the end (delta: 103.5 MB). Peak memory consumption was 243.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:02,185 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:11:02,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.14 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:02,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.75 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:11:02,186 INFO L168 Benchmark]: Boogie Preprocessor took 52.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:02,186 INFO L168 Benchmark]: RCFGBuilder took 1042.73 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:02,186 INFO L168 Benchmark]: TraceAbstraction took 8556.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 841.2 MB in the end (delta: 249.8 MB). Peak memory consumption was 249.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:11:02,186 INFO L168 Benchmark]: Witness Printer took 42.41 ms. Allocated memory is still 1.2 GB. Free memory is still 841.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:11:02,188 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.14 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 17.75 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1042.73 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8556.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 841.2 MB in the end (delta: 249.8 MB). Peak memory consumption was 249.8 MB. Max. memory is 11.5 GB. * Witness Printer took 42.41 ms. Allocated memory is still 1.2 GB. Free memory is still 841.2 MB. There was no memory consumed. 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, 8.5s 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, 3.6s 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...