./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca707ecc133af2ec0063556d89a3ce449d0860eb ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:27:01,638 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:27:01,639 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:27:01,647 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:27:01,647 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:27:01,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:27:01,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:27:01,649 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:27:01,650 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:27:01,651 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:27:01,652 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:27:01,652 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:27:01,652 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:27:01,653 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:27:01,654 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:27:01,654 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:27:01,655 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:27:01,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:27:01,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:27:01,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:27:01,659 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:27:01,660 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:27:01,662 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:27:01,662 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:27:01,662 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:27:01,663 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:27:01,663 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:27:01,664 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:27:01,665 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:27:01,665 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:27:01,665 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:27:01,666 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:27:01,666 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:27:01,666 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:27:01,667 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:27:01,667 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:27:01,667 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 09:27:01,678 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:27:01,678 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:27:01,679 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:27:01,679 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 09:27:01,679 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:27:01,679 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:27:01,679 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:27:01,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:27:01,680 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:27:01,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:27:01,681 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:27:01,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:27:01,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:27:01,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:27:01,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:27:01,681 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:27:01,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:27:01,682 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer 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 -> Automizer 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 -> ca707ecc133af2ec0063556d89a3ce449d0860eb [2018-11-18 09:27:01,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:27:01,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:27:01,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:27:01,715 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:27:01,715 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:27:01,715 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-11-18 09:27:01,750 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/data/e6892d45c/595001113f584329b2b286d152c86554/FLAG5e193c411 [2018-11-18 09:27:02,151 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:27:02,151 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/sv-benchmarks/c/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-11-18 09:27:02,155 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/data/e6892d45c/595001113f584329b2b286d152c86554/FLAG5e193c411 [2018-11-18 09:27:02,164 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/data/e6892d45c/595001113f584329b2b286d152c86554 [2018-11-18 09:27:02,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:27:02,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:27:02,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:27:02,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:27:02,171 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:27:02,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36abd910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02, skipping insertion in model container [2018-11-18 09:27:02,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:27:02,196 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:27:02,318 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:27:02,320 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:27:02,330 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:27:02,339 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:27:02,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02 WrapperNode [2018-11-18 09:27:02,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:27:02,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:27:02,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:27:02,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:27:02,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... [2018-11-18 09:27:02,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:27:02,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:27:02,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:27:02,357 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:27:02,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/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 [2018-11-18 09:27:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:27:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:27:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 09:27:02,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:27:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 09:27:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 09:27:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 09:27:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 09:27:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:27:02,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:27:02,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:27:02,526 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:27:02,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:27:02 BoogieIcfgContainer [2018-11-18 09:27:02,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:27:02,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:27:02,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:27:02,529 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:27:02,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:27:02" (1/3) ... [2018-11-18 09:27:02,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28755247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:27:02, skipping insertion in model container [2018-11-18 09:27:02,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:27:02" (2/3) ... [2018-11-18 09:27:02,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28755247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:27:02, skipping insertion in model container [2018-11-18 09:27:02,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:27:02" (3/3) ... [2018-11-18 09:27:02,532 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop_true-unreach-call_true-termination.i [2018-11-18 09:27:02,540 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:27:02,546 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:27:02,558 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:27:02,580 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:27:02,580 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:27:02,580 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:27:02,580 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:27:02,580 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:27:02,581 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:27:02,581 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:27:02,581 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:27:02,581 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:27:02,590 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 09:27:02,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 09:27:02,595 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:27:02,595 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:27:02,597 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:27:02,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:27:02,602 INFO L82 PathProgramCache]: Analyzing trace with hash 328932071, now seen corresponding path program 1 times [2018-11-18 09:27:02,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:27:02,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:27:02,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:02,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:27:02,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:27:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:27:02,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:27:02,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:27:02,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 09:27:02,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:27:02,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:27:02,735 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-11-18 09:27:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:27:02,787 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-11-18 09:27:02,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:27:02,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-18 09:27:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:27:02,793 INFO L225 Difference]: With dead ends: 46 [2018-11-18 09:27:02,793 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 09:27:02,795 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:27:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 09:27:02,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 09:27:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 09:27:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-11-18 09:27:02,817 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2018-11-18 09:27:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:27:02,817 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-11-18 09:27:02,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 09:27:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-11-18 09:27:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 09:27:02,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:27:02,818 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:27:02,818 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:27:02,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:27:02,818 INFO L82 PathProgramCache]: Analyzing trace with hash -249951176, now seen corresponding path program 1 times [2018-11-18 09:27:02,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:27:02,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:27:02,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:02,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:27:02,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:27:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:27:02,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:27:02,882 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/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 [2018-11-18 09:27:02,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:27:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:27:02,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:27:03,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:27:03,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:27:03,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 11 [2018-11-18 09:27:03,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 09:27:03,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 09:27:03,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:27:03,039 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 11 states. [2018-11-18 09:27:03,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:27:03,123 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-18 09:27:03,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:27:03,124 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2018-11-18 09:27:03,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:27:03,124 INFO L225 Difference]: With dead ends: 37 [2018-11-18 09:27:03,124 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 09:27:03,125 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:27:03,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 09:27:03,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-11-18 09:27:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 09:27:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-18 09:27:03,131 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 18 [2018-11-18 09:27:03,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:27:03,131 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-18 09:27:03,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 09:27:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-18 09:27:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 09:27:03,132 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:27:03,132 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:27:03,133 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:27:03,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:27:03,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1081143257, now seen corresponding path program 1 times [2018-11-18 09:27:03,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:27:03,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:27:03,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:03,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:27:03,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:27:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:27:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 09:27:03,201 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:27:03,201 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:27:03,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:27:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:27:03,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:27:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 09:27:03,333 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 09:27:03,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 13 [2018-11-18 09:27:03,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 09:27:03,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 09:27:03,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-18 09:27:03,334 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 13 states. [2018-11-18 09:27:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:27:03,477 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-11-18 09:27:03,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 09:27:03,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2018-11-18 09:27:03,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:27:03,477 INFO L225 Difference]: With dead ends: 40 [2018-11-18 09:27:03,477 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:27:03,478 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:27:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:27:03,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:27:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:27:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:27:03,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 09:27:03,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:27:03,479 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:27:03,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 09:27:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:27:03,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:27:03,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:27:03,567 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 09:27:03,567 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:27:03,567 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:27:03,568 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 09:27:03,568 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:27:03,568 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:27:03,568 INFO L428 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2018-11-18 09:27:03,568 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 31) the Hoare annotation is: true [2018-11-18 09:27:03,568 INFO L425 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2018-11-18 09:27:03,568 INFO L421 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (< 0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2018-11-18 09:27:03,568 INFO L421 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (< 0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2018-11-18 09:27:03,568 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 31) no Hoare annotation was computed. [2018-11-18 09:27:03,568 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2018-11-18 09:27:03,568 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 29) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (< 0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0)) [2018-11-18 09:27:03,568 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 31) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 09:27:03,569 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 09:27:03,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:27:03 BoogieIcfgContainer [2018-11-18 09:27:03,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:27:03,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:27:03,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:27:03,577 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:27:03,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:27:02" (3/4) ... [2018-11-18 09:27:03,580 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:27:03,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:27:03,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:27:03,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 09:27:03,588 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 09:27:03,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:27:03,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 09:27:03,617 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4f0c2384-ad88-4f04-885a-72620e62b0d6/bin-2019/uautomizer/witness.graphml [2018-11-18 09:27:03,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:27:03,618 INFO L168 Benchmark]: Toolchain (without parser) took 1450.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 959.8 MB in the beginning and 996.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 122.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:27:03,619 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:27:03,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:27:03,620 INFO L168 Benchmark]: Boogie Preprocessor took 16.90 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:27:03,620 INFO L168 Benchmark]: RCFGBuilder took 169.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:27:03,621 INFO L168 Benchmark]: TraceAbstraction took 1049.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:27:03,621 INFO L168 Benchmark]: Witness Printer took 40.57 ms. Allocated memory is still 1.2 GB. Free memory was 999.9 MB in the beginning and 996.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:27:03,623 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.90 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -197.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1049.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. * Witness Printer took 40.57 ms. Allocated memory is still 1.2 GB. Free memory was 999.9 MB in the beginning and 996.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (glob2_pathlim_off <= MAXPATHLEN && 0 < MAXPATHLEN) && 0 <= glob2_p_off - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 48 SDslu, 174 SDs, 0 SdLazy, 172 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 27 NumberOfFragments, 42 HoareAnnotationTreeSize, 16 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 7063 SizeOfPredicates, 10 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 26/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...