./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i --full-output --rcfgbuilder.size.of.a.code.block LoopFreeBlock --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 10cc4caffca660fca2e6a4a0cd5f7ba7ba4e10af --rcfgbuilder.size.of.a.code.block LoopFreeBlock ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-22 10:09:11,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 10:09:11,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 10:09:11,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 10:09:11,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 10:09:11,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 10:09:11,833 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 10:09:11,836 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 10:09:11,837 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 10:09:11,841 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 10:09:11,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 10:09:11,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 10:09:11,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 10:09:11,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 10:09:11,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 10:09:11,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 10:09:11,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 10:09:11,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 10:09:11,852 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 10:09:11,854 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 10:09:11,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 10:09:11,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 10:09:11,860 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 10:09:11,860 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 10:09:11,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 10:09:11,862 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 10:09:11,863 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 10:09:11,864 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 10:09:11,865 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 10:09:11,866 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 10:09:11,867 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 10:09:11,867 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 10:09:11,868 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 10:09:11,868 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 10:09:11,869 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 10:09:11,870 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 10:09:11,871 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 10:09:11,886 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 10:09:11,887 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 10:09:11,888 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 10:09:11,888 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 10:09:11,888 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 10:09:11,889 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 10:09:11,889 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 10:09:11,889 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 10:09:11,889 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 10:09:11,889 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 10:09:11,889 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 10:09:11,890 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 10:09:11,890 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 10:09:11,890 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 10:09:11,891 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 10:09:11,891 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 10:09:11,891 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 10:09:11,891 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 10:09:11,891 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 10:09:11,892 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 10:09:11,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 10:09:11,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 10:09:11,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 10:09:11,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 10:09:11,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 10:09:11,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 10:09:11,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 10:09:11,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 10:09:11,896 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 10:09:11,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 10:09:11,896 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 10:09:11,896 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 10:09:11,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 10:09:11,897 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 10:09:11,897 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 -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux 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 -> 10cc4caffca660fca2e6a4a0cd5f7ba7ba4e10af Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock [2018-10-22 10:09:11,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 10:09:11,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 10:09:11,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 10:09:11,968 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 10:09:11,968 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 10:09:11,969 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-10-22 10:09:12,029 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/323d41aa1/718c1a50bed246fe9985158cb07d2070/FLAG715dfff9b [2018-10-22 10:09:12,476 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 10:09:12,477 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-10-22 10:09:12,484 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/323d41aa1/718c1a50bed246fe9985158cb07d2070/FLAG715dfff9b [2018-10-22 10:09:12,501 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/323d41aa1/718c1a50bed246fe9985158cb07d2070 [2018-10-22 10:09:12,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 10:09:12,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 10:09:12,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 10:09:12,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 10:09:12,516 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 10:09:12,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448e6dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12, skipping insertion in model container [2018-10-22 10:09:12,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 10:09:12,563 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 10:09:12,826 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:09:12,837 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 10:09:12,884 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:09:12,908 INFO L193 MainTranslator]: Completed translation [2018-10-22 10:09:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12 WrapperNode [2018-10-22 10:09:12,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 10:09:12,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 10:09:12,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 10:09:12,910 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 10:09:12,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 10:09:12,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 10:09:12,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 10:09:12,960 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 10:09:12,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... [2018-10-22 10:09:12,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 10:09:12,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 10:09:12,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 10:09:12,995 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 10:09:12,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-22 10:09:13,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 10:09:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 10:09:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-10-22 10:09:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-10-22 10:09:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 10:09:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 10:09:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 10:09:13,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 10:09:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 10:09:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 10:09:14,215 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 10:09:14,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:09:14 BoogieIcfgContainer [2018-10-22 10:09:14,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 10:09:14,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 10:09:14,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 10:09:14,221 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 10:09:14,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 10:09:12" (1/3) ... [2018-10-22 10:09:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafb2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:09:14, skipping insertion in model container [2018-10-22 10:09:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:09:12" (2/3) ... [2018-10-22 10:09:14,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafb2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:09:14, skipping insertion in model container [2018-10-22 10:09:14,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:09:14" (3/3) ... [2018-10-22 10:09:14,226 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-10-22 10:09:14,237 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 10:09:14,246 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 10:09:14,263 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 10:09:14,292 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 10:09:14,293 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 10:09:14,293 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 10:09:14,293 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 10:09:14,293 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 10:09:14,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 10:09:14,294 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 10:09:14,294 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 10:09:14,294 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 10:09:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-10-22 10:09:14,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-22 10:09:14,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:09:14,323 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:09:14,325 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:09:14,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:09:14,332 INFO L82 PathProgramCache]: Analyzing trace with hash 913192634, now seen corresponding path program 1 times [2018-10-22 10:09:14,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:09:14,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:09:14,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:09:14,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:09:14,392 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:09:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:09:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:09:14,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:09:14,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 10:09:14,491 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:09:14,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 10:09:14,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 10:09:14,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 10:09:14,514 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-10-22 10:09:14,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:09:14,538 INFO L93 Difference]: Finished difference Result 69 states and 93 transitions. [2018-10-22 10:09:14,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 10:09:14,540 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-10-22 10:09:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:09:14,549 INFO L225 Difference]: With dead ends: 69 [2018-10-22 10:09:14,549 INFO L226 Difference]: Without dead ends: 31 [2018-10-22 10:09:14,553 INFO L605 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 [2018-10-22 10:09:14,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-22 10:09:14,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-22 10:09:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-22 10:09:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-10-22 10:09:14,594 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2018-10-22 10:09:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:09:14,595 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-10-22 10:09:14,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 10:09:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-10-22 10:09:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-22 10:09:14,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:09:14,596 INFO L375 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] [2018-10-22 10:09:14,597 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:09:14,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:09:14,597 INFO L82 PathProgramCache]: Analyzing trace with hash 335154756, now seen corresponding path program 1 times [2018-10-22 10:09:14,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:09:14,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:09:14,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:09:14,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:09:14,601 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:09:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:09:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:09:14,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:09:14,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 10:09:14,707 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:09:14,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 10:09:14,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 10:09:14,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 10:09:14,710 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 3 states. [2018-10-22 10:09:14,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:09:14,769 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-10-22 10:09:14,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 10:09:14,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-10-22 10:09:14,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:09:14,772 INFO L225 Difference]: With dead ends: 57 [2018-10-22 10:09:14,772 INFO L226 Difference]: Without dead ends: 33 [2018-10-22 10:09:14,773 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 10:09:14,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-22 10:09:14,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-22 10:09:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-22 10:09:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-10-22 10:09:14,781 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 25 [2018-10-22 10:09:14,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:09:14,781 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-10-22 10:09:14,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 10:09:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-10-22 10:09:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-22 10:09:14,784 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:09:14,784 INFO L375 BasicCegarLoop]: trace histogram [2, 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] [2018-10-22 10:09:14,784 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:09:14,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:09:14,786 INFO L82 PathProgramCache]: Analyzing trace with hash -401226742, now seen corresponding path program 1 times [2018-10-22 10:09:14,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:09:14,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:09:14,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:09:14,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:09:14,788 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:09:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:09:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-22 10:09:15,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:09:15,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 10:09:15,105 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:09:15,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 10:09:15,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 10:09:15,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 10:09:15,108 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2018-10-22 10:09:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:09:15,259 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-10-22 10:09:15,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 10:09:15,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-10-22 10:09:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:09:15,261 INFO L225 Difference]: With dead ends: 40 [2018-10-22 10:09:15,261 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 10:09:15,263 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 10:09:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 10:09:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 10:09:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 10:09:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 10:09:15,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-10-22 10:09:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:09:15,264 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 10:09:15,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 10:09:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 10:09:15,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 10:09:15,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 10:09:15,340 INFO L425 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-10-22 10:09:15,340 INFO L425 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-10-22 10:09:15,340 INFO L425 ceAbstractionStarter]: For program point L60-3(line 60) no Hoare annotation was computed. [2018-10-22 10:09:15,340 INFO L425 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-10-22 10:09:15,341 INFO L425 ceAbstractionStarter]: For program point L60-5(line 60) no Hoare annotation was computed. [2018-10-22 10:09:15,341 INFO L425 ceAbstractionStarter]: For program point L60-7(line 60) no Hoare annotation was computed. [2018-10-22 10:09:15,341 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-10-22 10:09:15,341 INFO L428 ceAbstractionStarter]: At program point L60-9(line 60) the Hoare annotation is: true [2018-10-22 10:09:15,341 INFO L425 ceAbstractionStarter]: For program point L60-10(line 60) no Hoare annotation was computed. [2018-10-22 10:09:15,341 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L425 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 55 73) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L425 ceAbstractionStarter]: For program point L57-1(line 57) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L425 ceAbstractionStarter]: For program point L57-2(line 57) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L425 ceAbstractionStarter]: For program point L57-4(line 57) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 74) no Hoare annotation was computed. [2018-10-22 10:09:15,342 INFO L428 ceAbstractionStarter]: At program point L57-6(line 57) the Hoare annotation is: true [2018-10-22 10:09:15,343 INFO L425 ceAbstractionStarter]: For program point L53-2(lines 53 74) no Hoare annotation was computed. [2018-10-22 10:09:15,343 INFO L425 ceAbstractionStarter]: For program point L57-7(line 57) no Hoare annotation was computed. [2018-10-22 10:09:15,343 INFO L428 ceAbstractionStarter]: At program point L53-4(lines 53 74) the Hoare annotation is: true [2018-10-22 10:09:15,343 INFO L425 ceAbstractionStarter]: For program point L53-5(lines 53 74) no Hoare annotation was computed. [2018-10-22 10:09:15,343 INFO L425 ceAbstractionStarter]: For program point parse_expression_listFINAL(lines 48 76) no Hoare annotation was computed. [2018-10-22 10:09:15,343 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 71) no Hoare annotation was computed. [2018-10-22 10:09:15,343 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-10-22 10:09:15,344 INFO L428 ceAbstractionStarter]: At program point parse_expression_listENTRY(lines 48 76) the Hoare annotation is: true [2018-10-22 10:09:15,344 INFO L425 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-10-22 10:09:15,344 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (<= parse_expression_list_~j~0 parse_expression_list_~start~0) [2018-10-22 10:09:15,344 INFO L425 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-10-22 10:09:15,344 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 65) no Hoare annotation was computed. [2018-10-22 10:09:15,344 INFO L425 ceAbstractionStarter]: For program point parse_expression_listEXIT(lines 48 76) no Hoare annotation was computed. [2018-10-22 10:09:15,345 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 73) no Hoare annotation was computed. [2018-10-22 10:09:15,345 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-22 10:09:15,345 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-22 10:09:15,345 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 10:09:15,345 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 10:09:15,345 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 10:09:15,345 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 10:09:15,346 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 10:09:15,346 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 77 88) the Hoare annotation is: true [2018-10-22 10:09:15,346 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 77 88) no Hoare annotation was computed. [2018-10-22 10:09:15,346 INFO L428 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2018-10-22 10:09:15,346 INFO L425 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-10-22 10:09:15,346 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 81 83) no Hoare annotation was computed. [2018-10-22 10:09:15,346 INFO L425 ceAbstractionStarter]: For program point L81-3(lines 81 83) no Hoare annotation was computed. [2018-10-22 10:09:15,347 INFO L428 ceAbstractionStarter]: At program point L81-4(lines 81 83) the Hoare annotation is: true [2018-10-22 10:09:15,347 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 77 88) no Hoare annotation was computed. [2018-10-22 10:09:15,347 INFO L425 ceAbstractionStarter]: For program point L81-5(lines 81 83) no Hoare annotation was computed. [2018-10-22 10:09:15,347 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-22 10:09:15,347 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-22 10:09:15,347 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-22 10:09:15,347 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-22 10:09:15,348 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-22 10:09:15,348 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-22 10:09:15,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:09:15 BoogieIcfgContainer [2018-10-22 10:09:15,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 10:09:15,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 10:09:15,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 10:09:15,356 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 10:09:15,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:09:14" (3/4) ... [2018-10-22 10:09:15,360 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 10:09:15,367 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_expression_list [2018-10-22 10:09:15,368 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 10:09:15,368 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 10:09:15,368 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 10:09:15,377 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2018-10-22 10:09:15,377 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-10-22 10:09:15,378 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-22 10:09:15,378 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-22 10:09:15,466 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 10:09:15,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 10:09:15,467 INFO L168 Benchmark]: Toolchain (without parser) took 2958.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -95.1 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2018-10-22 10:09:15,469 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:09:15,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.66 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-22 10:09:15,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:09:15,470 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:09:15,471 INFO L168 Benchmark]: RCFGBuilder took 1221.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-22 10:09:15,471 INFO L168 Benchmark]: TraceAbstraction took 1137.98 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: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. [2018-10-22 10:09:15,472 INFO L168 Benchmark]: Witness Printer took 110.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-22 10:09:15,475 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 397.66 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 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 50.59 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.08 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1221.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1137.98 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: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 11.5 GB. * Witness Printer took 110.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 81]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 105 SDtfs, 13 SDslu, 100 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 32 NumberOfFragments, 14 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 1945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...