./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i --full-output --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/verisec_OpenSER__cases1_stripFullBoth_arr_false-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 49da897df5dcdfc1bc615bb8c40422792fce477f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-21 12:24:52,011 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-21 12:24:52,013 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-21 12:24:52,025 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-21 12:24:52,025 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-21 12:24:52,026 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-21 12:24:52,028 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-21 12:24:52,030 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-21 12:24:52,032 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-21 12:24:52,033 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-21 12:24:52,034 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-21 12:24:52,034 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-21 12:24:52,035 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-21 12:24:52,036 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-21 12:24:52,038 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-21 12:24:52,038 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-21 12:24:52,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-21 12:24:52,042 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-21 12:24:52,044 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-21 12:24:52,046 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-21 12:24:52,047 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-21 12:24:52,048 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-21 12:24:52,051 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-21 12:24:52,051 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-21 12:24:52,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-21 12:24:52,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-21 12:24:52,054 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-21 12:24:52,055 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-21 12:24:52,056 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-21 12:24:52,057 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-21 12:24:52,057 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-21 12:24:52,058 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-21 12:24:52,059 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-21 12:24:52,059 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-21 12:24:52,060 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-21 12:24:52,061 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-21 12:24:52,062 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-21 12:24:52,078 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-21 12:24:52,078 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-21 12:24:52,079 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-21 12:24:52,079 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-21 12:24:52,079 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-21 12:24:52,080 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-21 12:24:52,080 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-21 12:24:52,080 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-21 12:24:52,080 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-21 12:24:52,081 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-21 12:24:52,081 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-21 12:24:52,081 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-21 12:24:52,082 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-21 12:24:52,082 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-21 12:24:52,082 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-21 12:24:52,082 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-21 12:24:52,082 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-21 12:24:52,083 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-21 12:24:52,084 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-21 12:24:52,084 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-21 12:24:52,084 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-21 12:24:52,084 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-21 12:24:52,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-21 12:24:52,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-21 12:24:52,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-21 12:24:52,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-21 12:24:52,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-21 12:24:52,086 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-21 12:24:52,086 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-21 12:24:52,086 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-21 12:24:52,087 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-21 12:24:52,087 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-21 12:24:52,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-21 12:24:52,087 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-21 12:24:52,087 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 -> 49da897df5dcdfc1bc615bb8c40422792fce477f [2018-10-21 12:24:52,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-21 12:24:52,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-21 12:24:52,159 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-21 12:24:52,161 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-21 12:24:52,161 INFO L276 PluginConnector]: CDTParser initialized [2018-10-21 12:24:52,162 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-10-21 12:24:52,226 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ae43e2641/bf75d1aff01f4e53807d6dfb121823e0/FLAG17003800d [2018-10-21 12:24:52,661 INFO L298 CDTParser]: Found 1 translation units. [2018-10-21 12:24:52,661 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-10-21 12:24:52,669 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ae43e2641/bf75d1aff01f4e53807d6dfb121823e0/FLAG17003800d [2018-10-21 12:24:52,687 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ae43e2641/bf75d1aff01f4e53807d6dfb121823e0 [2018-10-21 12:24:52,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-21 12:24:52,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-21 12:24:52,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-21 12:24:52,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-21 12:24:52,700 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-21 12:24:52,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 12:24:52" (1/1) ... [2018-10-21 12:24:52,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49aa1bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:52, skipping insertion in model container [2018-10-21 12:24:52,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 12:24:52" (1/1) ... [2018-10-21 12:24:52,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-21 12:24:52,750 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-21 12:24:53,013 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-21 12:24:53,027 INFO L189 MainTranslator]: Completed pre-run [2018-10-21 12:24:53,081 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-21 12:24:53,112 INFO L193 MainTranslator]: Completed translation [2018-10-21 12:24:53,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53 WrapperNode [2018-10-21 12:24:53,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-21 12:24:53,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-21 12:24:53,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-21 12:24:53,115 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-21 12:24:53,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-21 12:24:53,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-21 12:24:53,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-21 12:24:53,194 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-21 12:24:53,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (1/1) ... [2018-10-21 12:24:53,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-21 12:24:53,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-21 12:24:53,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-21 12:24:53,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-21 12:24:53,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (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 [2018-10-21 12:24:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-21 12:24:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-21 12:24:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2018-10-21 12:24:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2018-10-21 12:24:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-21 12:24:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-21 12:24:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-21 12:24:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-21 12:24:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-21 12:24:53,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-21 12:24:54,065 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-21 12:24:54,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:24:54 BoogieIcfgContainer [2018-10-21 12:24:54,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-21 12:24:54,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-21 12:24:54,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-21 12:24:54,070 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-21 12:24:54,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 12:24:52" (1/3) ... [2018-10-21 12:24:54,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e8790b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:24:54, skipping insertion in model container [2018-10-21 12:24:54,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:24:53" (2/3) ... [2018-10-21 12:24:54,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e8790b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:24:54, skipping insertion in model container [2018-10-21 12:24:54,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:24:54" (3/3) ... [2018-10-21 12:24:54,074 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_OpenSER__cases1_stripFullBoth_arr_false-unreach-call_true-termination.i [2018-10-21 12:24:54,084 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-21 12:24:54,093 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-21 12:24:54,110 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-21 12:24:54,141 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-21 12:24:54,142 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-21 12:24:54,142 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-21 12:24:54,142 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-21 12:24:54,142 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-21 12:24:54,144 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-21 12:24:54,145 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-21 12:24:54,145 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-21 12:24:54,145 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-21 12:24:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-10-21 12:24:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-21 12:24:54,174 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:54,175 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] [2018-10-21 12:24:54,178 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:54,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:54,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1430162208, now seen corresponding path program 1 times [2018-10-21 12:24:54,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:54,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:54,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:54,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:54,238 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:24:54,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:54,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-21 12:24:54,365 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:54,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-21 12:24:54,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-21 12:24:54,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-21 12:24:54,391 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-10-21 12:24:54,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:54,416 INFO L93 Difference]: Finished difference Result 87 states and 117 transitions. [2018-10-21 12:24:54,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-21 12:24:54,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-10-21 12:24:54,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:54,425 INFO L225 Difference]: With dead ends: 87 [2018-10-21 12:24:54,425 INFO L226 Difference]: Without dead ends: 40 [2018-10-21 12:24:54,430 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 [2018-10-21 12:24:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-21 12:24:54,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-10-21 12:24:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-21 12:24:54,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2018-10-21 12:24:54,474 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 24 [2018-10-21 12:24:54,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:54,475 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-10-21 12:24:54,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-21 12:24:54,475 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2018-10-21 12:24:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-21 12:24:54,477 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:54,477 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] [2018-10-21 12:24:54,478 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:54,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:54,479 INFO L82 PathProgramCache]: Analyzing trace with hash 681592423, now seen corresponding path program 1 times [2018-10-21 12:24:54,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:54,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:54,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:54,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:54,481 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:54,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:24:54,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:54,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-21 12:24:54,656 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:54,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-21 12:24:54,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-21 12:24:54,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-21 12:24:54,659 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 3 states. [2018-10-21 12:24:54,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:54,718 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2018-10-21 12:24:54,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-21 12:24:54,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-10-21 12:24:54,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:54,720 INFO L225 Difference]: With dead ends: 72 [2018-10-21 12:24:54,721 INFO L226 Difference]: Without dead ends: 41 [2018-10-21 12:24:54,722 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 [2018-10-21 12:24:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-21 12:24:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-10-21 12:24:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-21 12:24:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-10-21 12:24:54,730 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 30 [2018-10-21 12:24:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:54,731 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-10-21 12:24:54,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-21 12:24:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-10-21 12:24:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-21 12:24:54,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:54,732 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] [2018-10-21 12:24:54,732 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:54,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash -906755479, now seen corresponding path program 1 times [2018-10-21 12:24:54,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:54,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:54,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:54,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:54,736 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:24:54,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:54,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-21 12:24:54,913 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:54,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-21 12:24:54,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-21 12:24:54,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-21 12:24:54,921 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 5 states. [2018-10-21 12:24:55,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:55,258 INFO L93 Difference]: Finished difference Result 100 states and 129 transitions. [2018-10-21 12:24:55,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-21 12:24:55,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-10-21 12:24:55,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:55,263 INFO L225 Difference]: With dead ends: 100 [2018-10-21 12:24:55,263 INFO L226 Difference]: Without dead ends: 68 [2018-10-21 12:24:55,265 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-21 12:24:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-21 12:24:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2018-10-21 12:24:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-21 12:24:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2018-10-21 12:24:55,280 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 30 [2018-10-21 12:24:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:55,280 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2018-10-21 12:24:55,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-21 12:24:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2018-10-21 12:24:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-21 12:24:55,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:55,283 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] [2018-10-21 12:24:55,283 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:55,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:55,284 INFO L82 PathProgramCache]: Analyzing trace with hash 925510185, now seen corresponding path program 1 times [2018-10-21 12:24:55,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:55,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:55,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:55,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:55,286 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:24:55,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:55,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-21 12:24:55,458 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:55,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-21 12:24:55,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-21 12:24:55,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-21 12:24:55,461 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand 6 states. [2018-10-21 12:24:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:56,012 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2018-10-21 12:24:56,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-21 12:24:56,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-10-21 12:24:56,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:56,017 INFO L225 Difference]: With dead ends: 158 [2018-10-21 12:24:56,017 INFO L226 Difference]: Without dead ends: 89 [2018-10-21 12:24:56,019 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-21 12:24:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-10-21 12:24:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 58. [2018-10-21 12:24:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-21 12:24:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2018-10-21 12:24:56,038 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 30 [2018-10-21 12:24:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:56,038 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2018-10-21 12:24:56,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-21 12:24:56,039 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2018-10-21 12:24:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-21 12:24:56,042 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:56,042 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] [2018-10-21 12:24:56,043 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:56,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:56,044 INFO L82 PathProgramCache]: Analyzing trace with hash -85607065, now seen corresponding path program 1 times [2018-10-21 12:24:56,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:56,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:56,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:56,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:56,045 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:56,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:24:56,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:56,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-21 12:24:56,193 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:56,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-21 12:24:56,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-21 12:24:56,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-21 12:24:56,194 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand 5 states. [2018-10-21 12:24:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:56,708 INFO L93 Difference]: Finished difference Result 136 states and 173 transitions. [2018-10-21 12:24:56,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-21 12:24:56,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-10-21 12:24:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:56,713 INFO L225 Difference]: With dead ends: 136 [2018-10-21 12:24:56,713 INFO L226 Difference]: Without dead ends: 69 [2018-10-21 12:24:56,714 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-21 12:24:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-10-21 12:24:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2018-10-21 12:24:56,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-21 12:24:56,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2018-10-21 12:24:56,722 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 30 [2018-10-21 12:24:56,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:56,722 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2018-10-21 12:24:56,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-21 12:24:56,722 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2018-10-21 12:24:56,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-21 12:24:56,724 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:56,724 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] [2018-10-21 12:24:56,724 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:56,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:56,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1176159658, now seen corresponding path program 1 times [2018-10-21 12:24:56,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:56,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:56,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:56,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:56,726 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:56,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-21 12:24:56,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:56,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-21 12:24:56,897 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:56,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-21 12:24:56,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-21 12:24:56,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-21 12:24:56,898 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 7 states. [2018-10-21 12:24:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:57,468 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2018-10-21 12:24:57,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-21 12:24:57,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-10-21 12:24:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:57,471 INFO L225 Difference]: With dead ends: 160 [2018-10-21 12:24:57,471 INFO L226 Difference]: Without dead ends: 109 [2018-10-21 12:24:57,472 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-21 12:24:57,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-21 12:24:57,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 77. [2018-10-21 12:24:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-21 12:24:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2018-10-21 12:24:57,483 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 35 [2018-10-21 12:24:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:57,484 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2018-10-21 12:24:57,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-21 12:24:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2018-10-21 12:24:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-21 12:24:57,485 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:57,485 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] [2018-10-21 12:24:57,486 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:57,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:57,486 INFO L82 PathProgramCache]: Analyzing trace with hash 165042408, now seen corresponding path program 1 times [2018-10-21 12:24:57,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:57,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:57,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:57,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:57,488 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-21 12:24:57,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:57,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-21 12:24:57,662 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:57,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-21 12:24:57,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-21 12:24:57,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-21 12:24:57,663 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 7 states. [2018-10-21 12:24:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:58,079 INFO L93 Difference]: Finished difference Result 112 states and 142 transitions. [2018-10-21 12:24:58,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-21 12:24:58,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-10-21 12:24:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:58,082 INFO L225 Difference]: With dead ends: 112 [2018-10-21 12:24:58,082 INFO L226 Difference]: Without dead ends: 110 [2018-10-21 12:24:58,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-21 12:24:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-10-21 12:24:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99. [2018-10-21 12:24:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-10-21 12:24:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2018-10-21 12:24:58,095 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 35 [2018-10-21 12:24:58,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:58,095 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2018-10-21 12:24:58,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-21 12:24:58,095 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2018-10-21 12:24:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-21 12:24:58,097 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:58,097 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] [2018-10-21 12:24:58,097 INFO L424 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:58,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:58,098 INFO L82 PathProgramCache]: Analyzing trace with hash -52520849, now seen corresponding path program 1 times [2018-10-21 12:24:58,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:58,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:58,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:58,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:58,099 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-21 12:24:58,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:24:58,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-21 12:24:58,270 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:24:58,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-21 12:24:58,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-21 12:24:58,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-21 12:24:58,273 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand 4 states. [2018-10-21 12:24:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:24:58,399 INFO L93 Difference]: Finished difference Result 159 states and 203 transitions. [2018-10-21 12:24:58,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-21 12:24:58,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-10-21 12:24:58,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:24:58,402 INFO L225 Difference]: With dead ends: 159 [2018-10-21 12:24:58,402 INFO L226 Difference]: Without dead ends: 109 [2018-10-21 12:24:58,403 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-21 12:24:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-21 12:24:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-10-21 12:24:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-10-21 12:24:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2018-10-21 12:24:58,414 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 37 [2018-10-21 12:24:58,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:24:58,414 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2018-10-21 12:24:58,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-21 12:24:58,414 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2018-10-21 12:24:58,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-21 12:24:58,416 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:24:58,416 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] [2018-10-21 12:24:58,416 INFO L424 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:24:58,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:24:58,417 INFO L82 PathProgramCache]: Analyzing trace with hash 648543729, now seen corresponding path program 1 times [2018-10-21 12:24:58,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:24:58,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:58,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:24:58,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:24:58,418 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:24:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:24:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:24:58,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:24:58,556 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-21 12:24:58,557 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-10-21 12:24:58,558 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [48], [53], [55], [61], [67], [70], [76], [82], [89], [91], [93], [98], [104], [105], [109], [113], [116], [118], [124], [126], [127], [128], [130] [2018-10-21 12:24:58,611 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-21 12:24:58,611 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-21 12:25:10,615 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-21 12:25:10,617 INFO L272 AbstractInterpreter]: Visited 36 different actions 960 times. Merged at 23 different actions 793 times. Widened at 3 different actions 94 times. Found 2 fixpoints after 2 different actions. Largest state had 53 variables. [2018-10-21 12:25:10,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:10,665 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-21 12:25:10,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:10,665 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-21 12:25:10,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:10,683 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-21 12:25:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:10,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:10,934 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:11,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:11,267 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-21 12:25:11,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:11,304 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-21 12:25:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:11,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:11,403 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:11,699 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-21 12:25:11,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 8 [2018-10-21 12:25:11,700 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-21 12:25:11,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-21 12:25:11,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-21 12:25:11,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-21 12:25:11,704 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand 8 states. [2018-10-21 12:25:12,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:25:12,490 INFO L93 Difference]: Finished difference Result 228 states and 285 transitions. [2018-10-21 12:25:12,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-21 12:25:12,492 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-10-21 12:25:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:25:12,493 INFO L225 Difference]: With dead ends: 228 [2018-10-21 12:25:12,493 INFO L226 Difference]: Without dead ends: 139 [2018-10-21 12:25:12,494 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-21 12:25:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-10-21 12:25:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 110. [2018-10-21 12:25:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-10-21 12:25:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions. [2018-10-21 12:25:12,510 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 37 [2018-10-21 12:25:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:25:12,510 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 132 transitions. [2018-10-21 12:25:12,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-21 12:25:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2018-10-21 12:25:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-21 12:25:12,516 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:25:12,516 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2018-10-21 12:25:12,516 INFO L424 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:25:12,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:12,517 INFO L82 PathProgramCache]: Analyzing trace with hash 408592208, now seen corresponding path program 2 times [2018-10-21 12:25:12,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:25:12,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:12,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:12,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:12,520 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:25:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:12,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:12,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:12,762 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-21 12:25:12,762 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-21 12:25:12,762 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-21 12:25:12,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:12,763 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-21 12:25:12,772 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-21 12:25:12,772 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-10-21 12:25:12,838 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-21 12:25:12,838 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-21 12:25:12,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:12,999 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:13,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:13,188 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-21 12:25:13,205 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-21 12:25:13,205 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-10-21 12:25:13,341 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-21 12:25:13,341 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-21 12:25:13,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:13,365 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:13,518 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-21 12:25:13,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 9, 8] total 19 [2018-10-21 12:25:13,518 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-21 12:25:13,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-21 12:25:13,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-21 12:25:13,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2018-10-21 12:25:13,520 INFO L87 Difference]: Start difference. First operand 110 states and 132 transitions. Second operand 16 states. [2018-10-21 12:25:14,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:25:14,080 INFO L93 Difference]: Finished difference Result 236 states and 291 transitions. [2018-10-21 12:25:14,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-21 12:25:14,081 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-10-21 12:25:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:25:14,082 INFO L225 Difference]: With dead ends: 236 [2018-10-21 12:25:14,082 INFO L226 Difference]: Without dead ends: 183 [2018-10-21 12:25:14,083 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 150 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2018-10-21 12:25:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-10-21 12:25:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 137. [2018-10-21 12:25:14,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-10-21 12:25:14,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2018-10-21 12:25:14,094 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 42 [2018-10-21 12:25:14,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:25:14,095 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2018-10-21 12:25:14,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-21 12:25:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2018-10-21 12:25:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-21 12:25:14,096 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:25:14,096 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2018-10-21 12:25:14,097 INFO L424 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:25:14,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:14,097 INFO L82 PathProgramCache]: Analyzing trace with hash 465850510, now seen corresponding path program 1 times [2018-10-21 12:25:14,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:25:14,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:14,098 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-21 12:25:14,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:14,098 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:25:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:14,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:14,495 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-21 12:25:14,496 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-10-21 12:25:14,496 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [35], [39], [43], [45], [48], [53], [55], [61], [67], [70], [78], [82], [89], [91], [93], [98], [104], [105], [109], [113], [116], [118], [124], [126], [127], [128], [130] [2018-10-21 12:25:14,500 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-21 12:25:14,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-21 12:25:25,832 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-21 12:25:25,832 INFO L272 AbstractInterpreter]: Visited 36 different actions 964 times. Merged at 23 different actions 794 times. Widened at 3 different actions 94 times. Found 2 fixpoints after 2 different actions. Largest state had 52 variables. [2018-10-21 12:25:25,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:25,840 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-21 12:25:25,840 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:25,840 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-21 12:25:25,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:25,851 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-21 12:25:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:25,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:26,245 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:26,386 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:26,386 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-21 12:25:26,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:26,404 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-21 12:25:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:26,496 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:26,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:26,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-21 12:25:26,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9, 10, 9] total 21 [2018-10-21 12:25:26,639 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-21 12:25:26,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-21 12:25:26,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-21 12:25:26,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-10-21 12:25:26,645 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand 16 states. [2018-10-21 12:25:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:25:27,121 INFO L93 Difference]: Finished difference Result 192 states and 229 transitions. [2018-10-21 12:25:27,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-21 12:25:27,121 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-10-21 12:25:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:25:27,123 INFO L225 Difference]: With dead ends: 192 [2018-10-21 12:25:27,123 INFO L226 Difference]: Without dead ends: 190 [2018-10-21 12:25:27,124 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 149 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-10-21 12:25:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-10-21 12:25:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2018-10-21 12:25:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-10-21 12:25:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 167 transitions. [2018-10-21 12:25:27,136 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 167 transitions. Word has length 42 [2018-10-21 12:25:27,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:25:27,137 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 167 transitions. [2018-10-21 12:25:27,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-21 12:25:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 167 transitions. [2018-10-21 12:25:27,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-21 12:25:27,138 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:25:27,139 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2018-10-21 12:25:27,139 INFO L424 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:25:27,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:27,139 INFO L82 PathProgramCache]: Analyzing trace with hash -612476146, now seen corresponding path program 1 times [2018-10-21 12:25:27,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:25:27,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:27,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:27,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:27,140 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:25:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:27,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:27,939 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-21 12:25:27,940 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-10-21 12:25:27,940 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [17], [22], [26], [32], [37], [39], [43], [45], [48], [53], [55], [61], [67], [70], [76], [82], [89], [91], [93], [98], [104], [105], [109], [113], [116], [118], [124], [126], [127], [128], [130] [2018-10-21 12:25:27,942 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-21 12:25:27,943 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-21 12:25:37,741 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-21 12:25:37,741 INFO L272 AbstractInterpreter]: Visited 36 different actions 964 times. Merged at 23 different actions 794 times. Widened at 3 different actions 94 times. Found 2 fixpoints after 2 different actions. Largest state had 52 variables. [2018-10-21 12:25:37,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:37,749 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-21 12:25:37,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:37,749 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-21 12:25:37,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:37,759 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-21 12:25:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:37,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:37,984 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:38,147 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:25:38,148 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-21 12:25:38,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:38,167 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-21 12:25:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:25:38,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-21 12:25:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:38,302 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-21 12:25:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:25:38,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-21 12:25:38,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10] total 24 [2018-10-21 12:25:38,378 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-21 12:25:38,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-21 12:25:38,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-21 12:25:38,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2018-10-21 12:25:38,383 INFO L87 Difference]: Start difference. First operand 137 states and 167 transitions. Second operand 16 states. [2018-10-21 12:25:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:25:39,060 INFO L93 Difference]: Finished difference Result 211 states and 255 transitions. [2018-10-21 12:25:39,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-21 12:25:39,062 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-10-21 12:25:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:25:39,064 INFO L225 Difference]: With dead ends: 211 [2018-10-21 12:25:39,064 INFO L226 Difference]: Without dead ends: 209 [2018-10-21 12:25:39,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 152 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=217, Invalid=775, Unknown=0, NotChecked=0, Total=992 [2018-10-21 12:25:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-10-21 12:25:39,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 158. [2018-10-21 12:25:39,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-10-21 12:25:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 198 transitions. [2018-10-21 12:25:39,080 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 198 transitions. Word has length 42 [2018-10-21 12:25:39,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:25:39,081 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 198 transitions. [2018-10-21 12:25:39,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-21 12:25:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 198 transitions. [2018-10-21 12:25:39,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-21 12:25:39,083 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:25:39,090 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2018-10-21 12:25:39,091 INFO L424 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:25:39,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:25:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash -555217844, now seen corresponding path program 1 times [2018-10-21 12:25:39,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:25:39,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:39,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:25:39,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:25:39,093 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:25:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-21 12:25:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-21 12:25:39,184 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-21 12:25:39,205 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,207 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,208 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,208 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,208 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,209 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,209 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,209 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,210 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,210 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,210 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,211 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,211 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,211 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,212 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,212 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,212 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,213 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,213 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,213 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,214 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,214 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,214 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,215 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,215 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,215 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,216 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,216 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,216 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,217 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,217 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,217 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,218 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,218 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,219 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,219 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,219 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,220 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,220 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,220 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,221 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,221 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,221 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,222 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,222 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,222 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,223 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,223 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,223 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,224 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,224 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,224 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,225 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,225 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,225 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,226 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,226 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,227 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,227 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,227 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,228 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,228 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,228 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,228 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 12:25:39 BoogieIcfgContainer [2018-10-21 12:25:39,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-21 12:25:39,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-21 12:25:39,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-21 12:25:39,296 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-21 12:25:39,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:24:54" (3/4) ... [2018-10-21 12:25:39,304 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-21 12:25:39,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,309 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,310 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,313 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,315 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,318 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,319 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,320 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,322 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,329 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,329 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,329 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,330 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,332 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,333 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,333 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,333 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,333 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,334 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,337 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,337 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,338 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,338 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,338 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,341 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,341 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,342 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,343 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,343 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,343 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,343 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,344 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,344 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,345 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,345 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,345 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,345 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-21 12:25:39,474 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-21 12:25:39,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-21 12:25:39,480 INFO L168 Benchmark]: Toolchain (without parser) took 46787.61 ms. Allocated memory was 1.0 GB in the beginning and 4.2 GB in the end (delta: 3.1 GB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -201.9 MB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. [2018-10-21 12:25:39,486 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-21 12:25:39,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-21 12:25:39,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.10 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. [2018-10-21 12:25:39,497 INFO L168 Benchmark]: Boogie Preprocessor took 47.43 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. [2018-10-21 12:25:39,498 INFO L168 Benchmark]: RCFGBuilder took 824.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-10-21 12:25:39,500 INFO L168 Benchmark]: TraceAbstraction took 45226.16 ms. Allocated memory was 1.2 GB in the beginning and 4.2 GB in the end (delta: 3.0 GB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -118.0 MB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. [2018-10-21 12:25:39,501 INFO L168 Benchmark]: Witness Printer took 179.61 ms. Allocated memory is still 4.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. [2018-10-21 12:25:39,513 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 418.58 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.10 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 47.43 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 824.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 45226.16 ms. Allocated memory was 1.2 GB in the beginning and 4.2 GB in the end (delta: 3.0 GB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -118.0 MB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. * Witness Printer took 179.61 ms. Allocated memory is still 4.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L75] CALL char A [2 + 2 + 4 +1]; [L75] RET char A [2 + 2 + 4 +1]; [L76] CALL A[2 + 2 + 4] = 0 [L76] RET A[2 + 2 + 4] = 0 [L77] CALL parse_expression_list (A) [L49] int start=0, i=-1, j=-1; [L50] CALL char str2[2]; [L50] RET char str2[2]; [L51] COND FALSE !(!str) [L53] i++ [L54] CALL str[i] [L54] RET str[i] [L55] case 0: [L70] CALL, EXPR str[i] [L70] RET, EXPR str[i] [L70] COND TRUE str[i] != 0 [L53] i++ [L54] CALL str[i] [L54] RET str[i] [L55] case 0: [L70] CALL, EXPR str[i] [L70] RET, EXPR str[i] [L70] COND TRUE str[i] != 0 [L53] i++ [L54] CALL str[i] [L54] RET str[i] [L55] case 0: [L56] CALL, EXPR str[start] [L56] RET, EXPR str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] CALL, EXPR str[start] [L56] RET, EXPR str[start] [L56] (str[start] == ' ') || (str[start] == '\t') [L56] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] COND FALSE !(str[start] == '"') [L58] j = i-1 [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] CALL, EXPR str[j] [L59] RET, EXPR str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] CALL, EXPR str[j] [L59] RET, EXPR str[j] [L59] EXPR (str[j] == ' ') || (str[j] == '\t') [L59] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L59] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] (0 < j) && (str[j] == '"') [L60] CALL, EXPR str[j] [L60] RET, EXPR str[j] [L60] (0 < j) && (str[j] == '"') [L60] COND FALSE !((0 < j) && (str[j] == '"')) [L61] COND TRUE start<=j [L62] FCALL r_strncpy(str2, str+start, j-start+1) [L63] CALL __VERIFIER_assert(j - start + 1 < 2) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 45.1s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 5.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 574 SDtfs, 1003 SDslu, 2020 SDs, 0 SdLazy, 1406 SolverSat, 201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 756 GetRequests, 610 SyntacticMatches, 25 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 33.2s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 288 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1038 ConstructedInterpolants, 0 QuantifiedInterpolants, 152089 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2010 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 28 InterpolantComputations, 8 PerfectInterpolantSequences, 6/151 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...