./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/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 77e92a11a4549a6f714898b45c2d349723607a29 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:42:33,742 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:42:33,743 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:42:33,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:42:33,752 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:42:33,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:42:33,754 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:42:33,755 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:42:33,756 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:42:33,756 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:42:33,757 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:42:33,757 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:42:33,758 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:42:33,759 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:42:33,760 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:42:33,761 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:42:33,761 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:42:33,763 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:42:33,764 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:42:33,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:42:33,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:42:33,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:42:33,768 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:42:33,769 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:42:33,769 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:42:33,769 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:42:33,770 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:42:33,771 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:42:33,771 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:42:33,772 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:42:33,772 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:42:33,773 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:42:33,773 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:42:33,773 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:42:33,774 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:42:33,774 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:42:33,775 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 08:42:33,782 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:42:33,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:42:33,783 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:42:33,783 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:42:33,783 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:42:33,784 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:42:33,784 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:42:33,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:42:33,784 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:42:33,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:42:33,784 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:42:33,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:42:33,785 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:42:33,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:42:33,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:42:33,785 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:42:33,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:42:33,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:42:33,786 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:42:33,786 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:42:33,786 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:42:33,786 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:42:33,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:42:33,786 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:42:33,787 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:42:33,787 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:42:33,787 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:42:33,787 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:42:33,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:42:33,787 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_2ecd000a-4f9b-4e11-8be2-c1510a99870c/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 -> 77e92a11a4549a6f714898b45c2d349723607a29 [2018-11-10 08:42:33,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:42:33,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:42:33,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:42:33,822 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:42:33,822 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:42:33,822 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-10 08:42:33,859 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/data/5cec5f2d6/9047786415f341bd86680ac2db8ed809/FLAGb4d6534d0 [2018-11-10 08:42:34,240 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:42:34,241 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-10 08:42:34,245 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/data/5cec5f2d6/9047786415f341bd86680ac2db8ed809/FLAGb4d6534d0 [2018-11-10 08:42:34,253 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/data/5cec5f2d6/9047786415f341bd86680ac2db8ed809 [2018-11-10 08:42:34,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:42:34,255 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 08:42:34,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:42:34,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:42:34,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:42:34,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4541c043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34, skipping insertion in model container [2018-11-10 08:42:34,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:42:34,277 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:42:34,363 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:42:34,365 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:42:34,375 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:42:34,383 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:42:34,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34 WrapperNode [2018-11-10 08:42:34,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:42:34,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:42:34,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:42:34,384 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:42:34,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... [2018-11-10 08:42:34,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:42:34,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:42:34,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:42:34,407 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:42:34,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/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 [2018-11-10 08:42:34,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:42:34,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:42:34,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 08:42:34,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:42:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:42:34,648 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:42:34,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:42:34 BoogieIcfgContainer [2018-11-10 08:42:34,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:42:34,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:42:34,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:42:34,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:42:34,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:42:34" (1/3) ... [2018-11-10 08:42:34,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6b30ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:42:34, skipping insertion in model container [2018-11-10 08:42:34,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:42:34" (2/3) ... [2018-11-10 08:42:34,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6b30ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:42:34, skipping insertion in model container [2018-11-10 08:42:34,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:42:34" (3/3) ... [2018-11-10 08:42:34,653 INFO L112 eAbstractionObserver]: Analyzing ICFG MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-10 08:42:34,659 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:42:34,663 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:42:34,672 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:42:34,688 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:42:34,689 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:42:34,689 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:42:34,689 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:42:34,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:42:34,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:42:34,689 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:42:34,690 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:42:34,690 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:42:34,704 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-10 08:42:34,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 08:42:34,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:42:34,710 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:42:34,711 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:42:34,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:42:34,716 INFO L82 PathProgramCache]: Analyzing trace with hash 802506358, now seen corresponding path program 1 times [2018-11-10 08:42:34,717 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:42:34,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:42:34,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:42:34,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:42:34,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:42:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:42:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:42:34,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:42:34,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 08:42:34,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 08:42:34,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 08:42:34,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:42:34,873 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2018-11-10 08:42:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:42:34,964 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2018-11-10 08:42:34,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:42:34,966 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-10 08:42:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:42:34,970 INFO L225 Difference]: With dead ends: 53 [2018-11-10 08:42:34,970 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 08:42:34,972 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:42:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 08:42:34,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-10 08:42:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 08:42:34,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-11-10 08:42:34,995 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 19 [2018-11-10 08:42:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:42:34,995 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-11-10 08:42:34,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 08:42:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-11-10 08:42:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 08:42:34,996 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:42:34,996 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:42:34,996 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:42:34,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:42:34,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1083684374, now seen corresponding path program 1 times [2018-11-10 08:42:34,997 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:42:34,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:42:34,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:42:34,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:42:34,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:42:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:42:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:42:35,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:42:35,087 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/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 [2018-11-10 08:42:35,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:42:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:42:35,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:42:35,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:42:35,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:42:35,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-10 08:42:35,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 08:42:35,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 08:42:35,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-10 08:42:35,192 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 9 states. [2018-11-10 08:42:35,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:42:35,284 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-10 08:42:35,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 08:42:35,284 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-10 08:42:35,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:42:35,285 INFO L225 Difference]: With dead ends: 40 [2018-11-10 08:42:35,285 INFO L226 Difference]: Without dead ends: 38 [2018-11-10 08:42:35,286 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-11-10 08:42:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-10 08:42:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-11-10 08:42:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-10 08:42:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-11-10 08:42:35,295 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 24 [2018-11-10 08:42:35,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:42:35,295 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-11-10 08:42:35,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 08:42:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-10 08:42:35,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 08:42:35,297 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:42:35,297 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:42:35,297 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:42:35,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:42:35,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1354781823, now seen corresponding path program 1 times [2018-11-10 08:42:35,298 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:42:35,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:42:35,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:42:35,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:42:35,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:42:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:42:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-10 08:42:35,376 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:42:35,376 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/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 [2018-11-10 08:42:35,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:42:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:42:35,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:42:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-10 08:42:35,507 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 08:42:35,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-11-10 08:42:35,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 08:42:35,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 08:42:35,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-11-10 08:42:35,508 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 14 states. [2018-11-10 08:42:35,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:42:35,701 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-11-10 08:42:35,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-10 08:42:35,701 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2018-11-10 08:42:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:42:35,702 INFO L225 Difference]: With dead ends: 44 [2018-11-10 08:42:35,702 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 08:42:35,702 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-10 08:42:35,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 08:42:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 08:42:35,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 08:42:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 08:42:35,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-11-10 08:42:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:42:35,703 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:42:35,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 08:42:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:42:35,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 08:42:35,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 08:42:35,792 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 08:42:35,792 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:42:35,792 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:42:35,793 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 08:42:35,793 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 08:42:35,793 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 08:42:35,793 INFO L425 ceAbstractionStarter]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2018-11-10 08:42:35,793 INFO L421 ceAbstractionStarter]: At program point L35-4(lines 35 39) the Hoare annotation is: (and (<= (+ main_~p~0 (* 2 main_~ielen~0)) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= 1 main_~leader_len~0) (<= 1 main_~p~0)) [2018-11-10 08:42:35,793 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 42) no Hoare annotation was computed. [2018-11-10 08:42:35,793 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 08:42:35,793 INFO L428 ceAbstractionStarter]: At program point L40(lines 10 42) the Hoare annotation is: true [2018-11-10 08:42:35,794 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (and (<= (+ main_~p~0 (* 2 main_~ielen~0)) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= 1 main_~leader_len~0) (<= (+ main_~p~0 2) main_~bufsize_0~0) (<= 1 main_~p~0)) [2018-11-10 08:42:35,794 INFO L421 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (and (<= (+ main_~p~0 (* 2 main_~ielen~0)) (+ main_~bufsize_0~0 (* 2 main_~i~0))) (<= 1 main_~leader_len~0) (<= (+ main_~p~0 2) main_~bufsize_0~0) (<= 1 main_~p~0)) [2018-11-10 08:42:35,794 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-10 08:42:35,794 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 11 42) no Hoare annotation was computed. [2018-11-10 08:42:35,794 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-10 08:42:35,794 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-10 08:42:35,794 INFO L425 ceAbstractionStarter]: For program point L25(lines 11 42) no Hoare annotation was computed. [2018-11-10 08:42:35,794 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-10 08:42:35,795 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 42) the Hoare annotation is: true [2018-11-10 08:42:35,795 INFO L425 ceAbstractionStarter]: For program point L26(lines 11 42) no Hoare annotation was computed. [2018-11-10 08:42:35,795 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 08:42:35,795 INFO L425 ceAbstractionStarter]: For program point L35-1(lines 35 39) no Hoare annotation was computed. [2018-11-10 08:42:35,795 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 08:42:35,795 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 08:42:35,795 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 08:42:35,795 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 08:42:35,796 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 08:42:35,796 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 08:42:35,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:42:35 BoogieIcfgContainer [2018-11-10 08:42:35,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:42:35,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:42:35,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:42:35,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:42:35,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:42:34" (3/4) ... [2018-11-10 08:42:35,808 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 08:42:35,812 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 08:42:35,812 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 08:42:35,812 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 08:42:35,815 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 08:42:35,815 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 08:42:35,815 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 08:42:35,849 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2ecd000a-4f9b-4e11-8be2-c1510a99870c/bin-2019/uautomizer/witness.graphml [2018-11-10 08:42:35,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:42:35,850 INFO L168 Benchmark]: Toolchain (without parser) took 1594.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 960.2 MB in the beginning and 976.4 MB in the end (delta: -16.2 MB). Peak memory consumption was 132.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:42:35,851 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:42:35,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.39 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:42:35,851 INFO L168 Benchmark]: Boogie Preprocessor took 23.45 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:42:35,852 INFO L168 Benchmark]: RCFGBuilder took 241.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:42:35,852 INFO L168 Benchmark]: TraceAbstraction took 1155.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.0 MB in the end (delta: 153.6 MB). Peak memory consumption was 153.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:42:35,852 INFO L168 Benchmark]: Witness Printer took 43.81 ms. Allocated memory is still 1.2 GB. Free memory was 980.0 MB in the beginning and 976.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:42:35,854 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 127.39 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.45 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 241.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1155.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 980.0 MB in the end (delta: 153.6 MB). Peak memory consumption was 153.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.81 ms. Allocated memory is still 1.2 GB. Free memory was 980.0 MB in the beginning and 976.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (p + 2 * ielen <= bufsize_0 + 2 * i && 1 <= leader_len) && 1 <= p - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 54 SDslu, 353 SDs, 0 SdLazy, 239 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 28 NumberOfFragments, 70 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 156 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 13511 SizeOfPredicates, 10 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 34/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...