./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 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c3fbe1c 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 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:01:56,171 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:01:56,173 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:01:56,185 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:01:56,185 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:01:56,186 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:01:56,187 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:01:56,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:01:56,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:01:56,191 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:01:56,192 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:01:56,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:01:56,193 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:01:56,194 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:01:56,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:01:56,196 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:01:56,197 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:01:56,199 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:01:56,201 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:01:56,202 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:01:56,203 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:01:56,204 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:01:56,207 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 15:01:56,207 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 15:01:56,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 15:01:56,208 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 15:01:56,209 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 15:01:56,210 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 15:01:56,211 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 15:01:56,212 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 15:01:56,212 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 15:01:56,213 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 15:01:56,213 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 15:01:56,213 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 15:01:56,214 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 15:01:56,215 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 15:01:56,215 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 15:01:56,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:01:56,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:01:56,231 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:01:56,231 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 15:01:56,232 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 15:01:56,232 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 15:01:56,232 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 15:01:56,232 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 15:01:56,232 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 15:01:56,233 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 15:01:56,233 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 15:01:56,233 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:01:56,234 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 15:01:56,234 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:01:56,234 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 15:01:56,234 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:01:56,234 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:01:56,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:01:56,235 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:01:56,235 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 15:01:56,235 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:01:56,235 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:01:56,235 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:01:56,236 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:01:56,236 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:01:56,236 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:01:56,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:01:56,236 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:01:56,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:01:56,237 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:01:56,237 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 15:01:56,237 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:01:56,237 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:01:56,237 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:01:56,237 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 [2018-10-22 15:01:56,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:01:56,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:01:56,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:01:56,307 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:01:56,307 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:01:56,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-10-22 15:01:56,362 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/12772183c/ec1ed678bcb74efbb27a1c4579c1ac61/FLAG1e5aa8fdb [2018-10-22 15:01:56,799 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:01:56,800 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-10-22 15:01:56,808 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/12772183c/ec1ed678bcb74efbb27a1c4579c1ac61/FLAG1e5aa8fdb [2018-10-22 15:01:56,824 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/12772183c/ec1ed678bcb74efbb27a1c4579c1ac61 [2018-10-22 15:01:56,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:01:56,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 15:01:56,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:01:56,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:01:56,833 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:01:56,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:01:56" (1/1) ... [2018-10-22 15:01:56,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe630ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:56, skipping insertion in model container [2018-10-22 15:01:56,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:01:56" (1/1) ... [2018-10-22 15:01:56,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:01:56,874 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:01:57,144 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:01:57,158 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:01:57,214 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:01:57,236 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:01:57,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57 WrapperNode [2018-10-22 15:01:57,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:01:57,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:01:57,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:01:57,238 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:01:57,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:01:57,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:01:57,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:01:57,292 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:01:57,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (1/1) ... [2018-10-22 15:01:57,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:01:57,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:01:57,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:01:57,331 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:01:57,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (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 15:01:57,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 15:01:57,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 15:01:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-10-22 15:01:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-10-22 15:01:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 15:01:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 15:01:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:01:57,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:01:57,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 15:01:57,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 15:01:58,147 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:01:58,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:01:58 BoogieIcfgContainer [2018-10-22 15:01:58,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:01:58,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:01:58,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:01:58,155 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:01:58,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:01:56" (1/3) ... [2018-10-22 15:01:58,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a4b1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:01:58, skipping insertion in model container [2018-10-22 15:01:58,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:01:57" (2/3) ... [2018-10-22 15:01:58,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a4b1d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:01:58, skipping insertion in model container [2018-10-22 15:01:58,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:01:58" (3/3) ... [2018-10-22 15:01:58,162 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-10-22 15:01:58,172 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:01:58,185 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:01:58,203 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:01:58,235 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:01:58,236 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:01:58,236 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:01:58,236 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:01:58,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:01:58,236 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:01:58,237 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:01:58,237 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:01:58,237 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:01:58,256 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-10-22 15:01:58,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-22 15:01:58,262 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:01:58,263 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, 1, 1] [2018-10-22 15:01:58,265 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:01:58,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:01:58,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1773514428, now seen corresponding path program 1 times [2018-10-22 15:01:58,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:01:58,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:01:58,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,320 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:01:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:01:58,403 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 15:01:58,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:01:58,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:01:58,406 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:01:58,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:01:58,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:01:58,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:01:58,427 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-10-22 15:01:58,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:01:58,456 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2018-10-22 15:01:58,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:01:58,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-10-22 15:01:58,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:01:58,466 INFO L225 Difference]: With dead ends: 97 [2018-10-22 15:01:58,467 INFO L226 Difference]: Without dead ends: 45 [2018-10-22 15:01:58,470 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 15:01:58,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-22 15:01:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-10-22 15:01:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-22 15:01:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-10-22 15:01:58,513 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 27 [2018-10-22 15:01:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:01:58,514 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-10-22 15:01:58,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:01:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-10-22 15:01:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-22 15:01:58,516 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:01:58,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:01:58,516 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:01:58,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:01:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1145549408, now seen corresponding path program 1 times [2018-10-22 15:01:58,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:01:58,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:01:58,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,519 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:01:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:01:58,614 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 15:01:58,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:01:58,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:01:58,615 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:01:58,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:01:58,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:01:58,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:01:58,617 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 3 states. [2018-10-22 15:01:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:01:58,685 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2018-10-22 15:01:58,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:01:58,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-10-22 15:01:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:01:58,687 INFO L225 Difference]: With dead ends: 84 [2018-10-22 15:01:58,688 INFO L226 Difference]: Without dead ends: 48 [2018-10-22 15:01:58,689 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 15:01:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-22 15:01:58,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-10-22 15:01:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-22 15:01:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2018-10-22 15:01:58,697 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 34 [2018-10-22 15:01:58,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:01:58,697 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2018-10-22 15:01:58,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:01:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2018-10-22 15:01:58,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-22 15:01:58,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:01:58,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:01:58,700 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:01:58,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:01:58,700 INFO L82 PathProgramCache]: Analyzing trace with hash 381128697, now seen corresponding path program 1 times [2018-10-22 15:01:58,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:01:58,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:01:58,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,702 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:01:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:01:58,806 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 15:01:58,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:01:58,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:01:58,807 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:01:58,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:01:58,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:01:58,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:01:58,809 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 3 states. [2018-10-22 15:01:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:01:58,883 INFO L93 Difference]: Finished difference Result 80 states and 100 transitions. [2018-10-22 15:01:58,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:01:58,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-10-22 15:01:58,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:01:58,886 INFO L225 Difference]: With dead ends: 80 [2018-10-22 15:01:58,886 INFO L226 Difference]: Without dead ends: 48 [2018-10-22 15:01:58,887 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 15:01:58,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-22 15:01:58,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-10-22 15:01:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-22 15:01:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-10-22 15:01:58,895 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 37 [2018-10-22 15:01:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:01:58,896 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2018-10-22 15:01:58,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:01:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2018-10-22 15:01:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-22 15:01:58,899 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:01:58,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:01:58,899 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:01:58,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:01:58,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1613016009, now seen corresponding path program 1 times [2018-10-22 15:01:58,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 15:01:58,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:01:58,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:01:58,902 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 15:01:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:01:59,111 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 15:01:59,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:01:59,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 15:01:59,112 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 15:01:59,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:01:59,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:01:59,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:01:59,114 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 5 states. [2018-10-22 15:01:59,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:01:59,411 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2018-10-22 15:01:59,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:01:59,413 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-10-22 15:01:59,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:01:59,414 INFO L225 Difference]: With dead ends: 61 [2018-10-22 15:01:59,414 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:01:59,415 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:01:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:01:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:01:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:01:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:01:59,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-10-22 15:01:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:01:59,417 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:01:59,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:01:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:01:59,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:01:59,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:01:59,520 INFO L425 ceAbstractionStarter]: For program point L60-1(line 60) no Hoare annotation was computed. [2018-10-22 15:01:59,520 INFO L425 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2018-10-22 15:01:59,521 INFO L425 ceAbstractionStarter]: For program point L60-3(line 60) no Hoare annotation was computed. [2018-10-22 15:01:59,521 INFO L425 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-10-22 15:01:59,521 INFO L425 ceAbstractionStarter]: For program point L60-5(line 60) no Hoare annotation was computed. [2018-10-22 15:01:59,521 INFO L425 ceAbstractionStarter]: For program point L60-7(line 60) no Hoare annotation was computed. [2018-10-22 15:01:59,521 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-10-22 15:01:59,521 INFO L428 ceAbstractionStarter]: At program point L60-9(line 60) the Hoare annotation is: true [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L60-10(line 60) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 55 73) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L57-1(line 57) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L57-2(line 57) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L57-4(line 57) no Hoare annotation was computed. [2018-10-22 15:01:59,522 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 74) no Hoare annotation was computed. [2018-10-22 15:01:59,523 INFO L428 ceAbstractionStarter]: At program point L57-6(line 57) the Hoare annotation is: true [2018-10-22 15:01:59,523 INFO L425 ceAbstractionStarter]: For program point L53-2(lines 53 74) no Hoare annotation was computed. [2018-10-22 15:01:59,523 INFO L425 ceAbstractionStarter]: For program point L57-7(line 57) no Hoare annotation was computed. [2018-10-22 15:01:59,523 INFO L428 ceAbstractionStarter]: At program point L53-4(lines 53 74) the Hoare annotation is: true [2018-10-22 15:01:59,523 INFO L425 ceAbstractionStarter]: For program point L53-5(lines 53 74) no Hoare annotation was computed. [2018-10-22 15:01:59,523 INFO L425 ceAbstractionStarter]: For program point parse_expression_listFINAL(lines 48 76) no Hoare annotation was computed. [2018-10-22 15:01:59,523 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 71) no Hoare annotation was computed. [2018-10-22 15:01:59,524 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-10-22 15:01:59,524 INFO L428 ceAbstractionStarter]: At program point parse_expression_listENTRY(lines 48 76) the Hoare annotation is: true [2018-10-22 15:01:59,524 INFO L425 ceAbstractionStarter]: For program point L58-2(line 58) no Hoare annotation was computed. [2018-10-22 15:01:59,524 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2018-10-22 15:01:59,524 INFO L425 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-10-22 15:01:59,524 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 65) no Hoare annotation was computed. [2018-10-22 15:01:59,524 INFO L425 ceAbstractionStarter]: For program point parse_expression_listEXIT(lines 48 76) no Hoare annotation was computed. [2018-10-22 15:01:59,525 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 73) no Hoare annotation was computed. [2018-10-22 15:01:59,525 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:01:59,525 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-22 15:01:59,525 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:01:59,525 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:01:59,525 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 15:01:59,525 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 15:01:59,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:01:59,526 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 77 88) the Hoare annotation is: true [2018-10-22 15:01:59,526 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 77 88) no Hoare annotation was computed. [2018-10-22 15:01:59,526 INFO L428 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: true [2018-10-22 15:01:59,526 INFO L425 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-10-22 15:01:59,526 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 81 83) no Hoare annotation was computed. [2018-10-22 15:01:59,526 INFO L425 ceAbstractionStarter]: For program point L81-3(lines 81 83) no Hoare annotation was computed. [2018-10-22 15:01:59,527 INFO L428 ceAbstractionStarter]: At program point L81-4(lines 81 83) the Hoare annotation is: true [2018-10-22 15:01:59,527 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 77 88) no Hoare annotation was computed. [2018-10-22 15:01:59,527 INFO L425 ceAbstractionStarter]: For program point L81-5(lines 81 83) no Hoare annotation was computed. [2018-10-22 15:01:59,527 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-22 15:01:59,527 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-22 15:01:59,528 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-22 15:01:59,528 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-22 15:01:59,528 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-22 15:01:59,528 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-22 15:01:59,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:01:59 BoogieIcfgContainer [2018-10-22 15:01:59,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:01:59,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 15:01:59,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 15:01:59,536 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 15:01:59,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:01:58" (3/4) ... [2018-10-22 15:01:59,540 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 15:01:59,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_expression_list [2018-10-22 15:01:59,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 15:01:59,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 15:01:59,546 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 15:01:59,554 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2018-10-22 15:01:59,554 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2018-10-22 15:01:59,555 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-22 15:01:59,555 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-22 15:01:59,636 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 15:01:59,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 15:01:59,637 INFO L168 Benchmark]: Toolchain (without parser) took 2809.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 954.5 MB in the beginning and 1.0 GB in the end (delta: -83.3 MB). Peak memory consumption was 67.7 MB. Max. memory is 11.5 GB. [2018-10-22 15:01:59,639 INFO L168 Benchmark]: CDTParser took 0.24 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 15:01:59,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.06 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-22 15:01:59,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.02 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 15:01:59,640 INFO L168 Benchmark]: Boogie Preprocessor took 37.72 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 937.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2018-10-22 15:01:59,641 INFO L168 Benchmark]: RCFGBuilder took 819.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-10-22 15:01:59,641 INFO L168 Benchmark]: TraceAbstraction took 1384.33 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2018-10-22 15:01:59,642 INFO L168 Benchmark]: Witness Printer took 100.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 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 15:01:59,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 408.06 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 938.4 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 54.02 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.72 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 937.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 819.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1384.33 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: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * Witness Printer took 100.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 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, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 217 SDtfs, 21 SDslu, 217 SDs, 0 SdLazy, 50 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 25 PreInvPairs, 33 NumberOfFragments, 16 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 4777 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...