./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i --full-output --rcfgbuilder.size.of.a.code.block SingleStatement --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_NetBSD-libc__loop_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 19c675897a6506757b73d61913c0ceb3a779b5c8 --rcfgbuilder.size.of.a.code.block SingleStatement .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-10-22 09:40:37,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 09:40:37,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 09:40:37,521 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 09:40:37,521 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 09:40:37,523 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 09:40:37,524 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 09:40:37,526 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 09:40:37,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 09:40:37,529 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 09:40:37,529 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 09:40:37,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 09:40:37,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 09:40:37,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 09:40:37,534 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 09:40:37,534 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 09:40:37,535 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 09:40:37,537 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 09:40:37,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 09:40:37,541 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 09:40:37,542 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 09:40:37,543 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 09:40:37,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 09:40:37,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 09:40:37,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 09:40:37,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 09:40:37,550 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 09:40:37,550 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 09:40:37,552 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 09:40:37,553 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 09:40:37,553 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 09:40:37,553 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 09:40:37,554 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 09:40:37,554 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 09:40:37,555 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 09:40:37,557 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 09:40:37,557 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 09:40:37,575 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 09:40:37,577 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 09:40:37,578 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 09:40:37,580 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 09:40:37,580 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 09:40:37,580 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 09:40:37,580 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 09:40:37,581 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 09:40:37,581 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 09:40:37,581 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 09:40:37,581 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 09:40:37,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 09:40:37,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 09:40:37,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 09:40:37,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 09:40:37,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 09:40:37,586 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 09:40:37,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 09:40:37,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 09:40:37,587 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 09:40:37,587 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 09:40:37,587 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 09:40:37,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 09:40:37,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 09:40:37,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 09:40:37,588 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 09:40:37,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 09:40:37,591 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 09:40:37,591 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 09:40:37,591 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 09:40:37,591 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 09:40:37,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 09:40:37,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 09:40:37,592 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 09:40:37,592 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 -> 19c675897a6506757b73d61913c0ceb3a779b5c8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2018-10-22 09:40:37,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 09:40:37,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 09:40:37,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 09:40:37,693 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 09:40:37,693 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 09:40:37,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-10-22 09:40:37,754 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a666571a/b255ce9930024267a68e4bf4cc7af34b/FLAGd63e218d6 [2018-10-22 09:40:38,269 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 09:40:38,270 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-10-22 09:40:38,276 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a666571a/b255ce9930024267a68e4bf4cc7af34b/FLAGd63e218d6 [2018-10-22 09:40:38,290 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a666571a/b255ce9930024267a68e4bf4cc7af34b [2018-10-22 09:40:38,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 09:40:38,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 09:40:38,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 09:40:38,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 09:40:38,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 09:40:38,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3282ec21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38, skipping insertion in model container [2018-10-22 09:40:38,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 09:40:38,336 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 09:40:38,520 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:40:38,531 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 09:40:38,552 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 09:40:38,570 INFO L193 MainTranslator]: Completed translation [2018-10-22 09:40:38,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38 WrapperNode [2018-10-22 09:40:38,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 09:40:38,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 09:40:38,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 09:40:38,572 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 09:40:38,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 09:40:38,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 09:40:38,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 09:40:38,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 09:40:38,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... [2018-10-22 09:40:38,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 09:40:38,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 09:40:38,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 09:40:38,657 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 09:40:38,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 09:40:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 09:40:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 09:40:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2018-10-22 09:40:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2018-10-22 09:40:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 09:40:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 09:40:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 09:40:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 09:40:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 09:40:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 09:40:39,344 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 09:40:39,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:40:39 BoogieIcfgContainer [2018-10-22 09:40:39,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 09:40:39,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 09:40:39,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 09:40:39,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 09:40:39,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:40:38" (1/3) ... [2018-10-22 09:40:39,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3696a5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:40:39, skipping insertion in model container [2018-10-22 09:40:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:40:38" (2/3) ... [2018-10-22 09:40:39,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3696a5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:40:39, skipping insertion in model container [2018-10-22 09:40:39,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:40:39" (3/3) ... [2018-10-22 09:40:39,353 INFO L112 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc__loop_false-unreach-call_true-termination.i [2018-10-22 09:40:39,363 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 09:40:39,372 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 09:40:39,388 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 09:40:39,421 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 09:40:39,422 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 09:40:39,422 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 09:40:39,422 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 09:40:39,422 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 09:40:39,422 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 09:40:39,423 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 09:40:39,423 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 09:40:39,423 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 09:40:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-10-22 09:40:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-22 09:40:39,450 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:40:39,451 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:40:39,454 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:40:39,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:40:39,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1697129657, now seen corresponding path program 1 times [2018-10-22 09:40:39,463 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:40:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:40:39,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:40:39,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:40:39,511 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:40:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:40:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:40:40,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 09:40:40,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-22 09:40:40,259 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 09:40:40,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-22 09:40:40,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-22 09:40:40,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-10-22 09:40:40,286 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 10 states. [2018-10-22 09:40:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:40:40,840 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2018-10-22 09:40:40,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 09:40:40,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-10-22 09:40:40,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:40:40,856 INFO L225 Difference]: With dead ends: 114 [2018-10-22 09:40:40,857 INFO L226 Difference]: Without dead ends: 59 [2018-10-22 09:40:40,861 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2018-10-22 09:40:40,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-10-22 09:40:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2018-10-22 09:40:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-22 09:40:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-10-22 09:40:40,913 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 32 [2018-10-22 09:40:40,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:40:40,915 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-10-22 09:40:40,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-22 09:40:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-10-22 09:40:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-22 09:40:40,917 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:40:40,918 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 09:40:40,918 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:40:40,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:40:40,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1475867934, now seen corresponding path program 1 times [2018-10-22 09:40:40,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:40:40,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:40:40,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:40:40,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:40:40,922 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:40:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:40:41,216 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-22 09:40:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:40:41,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 09:40:41,690 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 09:40:41,691 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-10-22 09:40:41,693 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [4], [5], [6], [7], [11], [16], [18], [19], [20], [21], [22], [23], [25], [26], [27], [36], [37], [38], [39], [40], [41], [42], [43], [44], [45], [46], [47], [48], [49], [62], [65], [67], [70], [72], [73], [74], [75], [76], [77], [79] [2018-10-22 09:40:41,755 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 09:40:41,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 09:40:42,730 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 09:40:42,731 INFO L272 AbstractInterpreter]: Visited 44 different actions 171 times. Merged at 12 different actions 86 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 31 variables. [2018-10-22 09:40:42,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:40:42,767 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 09:40:42,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 09:40:42,767 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 [2018-10-22 09:40:42,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:40:42,781 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 09:40:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:40:42,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 09:40:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:40:43,240 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 09:40:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:40:43,719 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 09:40:43,719 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 [2018-10-22 09:40:43,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:40:43,736 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 09:40:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 09:40:43,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 09:40:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:40:43,862 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 09:40:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 09:40:44,123 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 09:40:44,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12, 10, 10] total 25 [2018-10-22 09:40:44,123 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 09:40:44,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-22 09:40:44,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-22 09:40:44,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2018-10-22 09:40:44,126 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 20 states. [2018-10-22 09:40:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 09:40:44,749 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-10-22 09:40:44,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-22 09:40:44,749 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 48 [2018-10-22 09:40:44,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 09:40:44,755 INFO L225 Difference]: With dead ends: 69 [2018-10-22 09:40:44,755 INFO L226 Difference]: Without dead ends: 67 [2018-10-22 09:40:44,756 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 167 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=158, Invalid=964, Unknown=0, NotChecked=0, Total=1122 [2018-10-22 09:40:44,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-10-22 09:40:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-10-22 09:40:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-10-22 09:40:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-10-22 09:40:44,767 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 48 [2018-10-22 09:40:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 09:40:44,768 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-10-22 09:40:44,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-22 09:40:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-10-22 09:40:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-22 09:40:44,771 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 09:40:44,771 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-22 09:40:44,771 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 09:40:44,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 09:40:44,772 INFO L82 PathProgramCache]: Analyzing trace with hash -711950581, now seen corresponding path program 2 times [2018-10-22 09:40:44,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 09:40:44,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:40:44,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 09:40:44,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 09:40:44,774 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 09:40:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 09:40:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-22 09:40:44,859 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-22 09:40:44,878 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,880 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,880 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,880 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,881 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,881 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,881 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,882 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,882 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,882 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,882 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,883 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,883 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,883 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,884 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,884 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:40:44 BoogieIcfgContainer [2018-10-22 09:40:44,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 09:40:44,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 09:40:44,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 09:40:44,929 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 09:40:44,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:40:39" (3/4) ... [2018-10-22 09:40:44,932 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-22 09:40:44,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,935 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,936 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,937 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,938 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,938 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:44,938 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-22 09:40:45,015 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 09:40:45,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 09:40:45,017 INFO L168 Benchmark]: Toolchain (without parser) took 6721.83 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.6 MB). Free memory was 953.2 MB in the beginning and 921.8 MB in the end (delta: 31.4 MB). Peak memory consumption was 259.9 MB. Max. memory is 11.5 GB. [2018-10-22 09:40:45,019 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:40:45,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 09:40:45,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.30 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:40:45,020 INFO L168 Benchmark]: Boogie Preprocessor took 42.45 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-22 09:40:45,022 INFO L168 Benchmark]: RCFGBuilder took 688.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -181.4 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-10-22 09:40:45,023 INFO L168 Benchmark]: TraceAbstraction took 5582.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 921.8 MB in the end (delta: 196.7 MB). Peak memory consumption was 274.3 MB. Max. memory is 11.5 GB. [2018-10-22 09:40:45,025 INFO L168 Benchmark]: Witness Printer took 87.18 ms. Allocated memory is still 1.3 GB. Free memory is still 921.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 09:40:45,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 273.71 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 42.30 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.45 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 688.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -181.4 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5582.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 77.6 MB). Free memory was 1.1 GB in the beginning and 921.8 MB in the end (delta: 196.7 MB). Peak memory consumption was 274.3 MB. Max. memory is 11.5 GB. * Witness Printer took 87.18 ms. Allocated memory is still 1.3 GB. Free memory is still 921.8 MB. There was no memory consumed. 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 * 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: [L12] Char *tmp; VAL [\old(tmp)=10, \old(tmp)=13, tmp={0:0}] [L29] CALL Char pathbuf[1 +1]; [L29] RET Char pathbuf[1 +1]; [L31] Char *bound = pathbuf + sizeof(pathbuf) - 1; VAL [\old(tmp)=0, \old(tmp)=0, tmp={0:0}] [L33] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L35] CALL glob2 (pathbuf, bound) VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L16] Char *p; VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L18] p = pathbuf VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={12:4}] [L20] __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L21] CALL *p = 1 [L21] RET *p = 1 [L18] p++ VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, \old(tmp)=0, \old(tmp)=0, cond=1, tmp={12:4}] [L20] __VERIFIER_assert(p<=tmp) VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L21] CALL *p = 1 [L21] RET *p = 1 [L18] p++ VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L18] COND TRUE p <= pathlim VAL [\old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L20] CALL __VERIFIER_assert(p<=tmp) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, tmp={12:4}] [L4] COND TRUE !(cond) VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={12:4}] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(tmp)=0, \old(tmp)=0, cond=0, tmp={12:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 61 locations, 1 error locations. UNSAFE Result, 5.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 79 SDtfs, 244 SDslu, 589 SDs, 0 SdLazy, 284 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 169 SyntacticMatches, 15 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 55310 SizeOfPredicates, 25 NumberOfNonLiveVariables, 290 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 7/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...