./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/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_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/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 0.1.23-5842f4b [2018-11-18 10:07:12,022 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:07:12,024 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:07:12,031 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:07:12,031 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:07:12,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:07:12,032 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:07:12,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:07:12,034 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:07:12,035 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:07:12,036 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:07:12,036 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:07:12,037 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:07:12,037 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:07:12,038 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:07:12,038 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:07:12,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:07:12,040 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:07:12,041 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:07:12,042 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:07:12,043 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:07:12,044 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:07:12,045 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:07:12,045 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:07:12,046 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:07:12,046 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:07:12,047 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:07:12,047 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:07:12,047 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:07:12,048 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:07:12,048 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:07:12,048 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:07:12,049 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:07:12,049 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:07:12,049 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:07:12,050 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:07:12,050 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 10:07:12,057 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:07:12,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:07:12,057 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:07:12,057 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 10:07:12,058 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:07:12,058 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:07:12,058 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:07:12,058 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:07:12,058 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:07:12,058 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:07:12,058 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:07:12,059 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:07:12,059 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:07:12,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:07:12,060 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:07:12,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:07:12,061 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_bade5b2b-d3ec-45be-8385-2af997290762/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 [2018-11-18 10:07:12,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:07:12,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:07:12,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:07:12,097 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:07:12,097 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:07:12,097 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-18 10:07:12,142 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/data/e8ab8a83b/a982303367c4425091279f3881b2371a/FLAG29f695495 [2018-11-18 10:07:12,524 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:07:12,524 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-18 10:07:12,529 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/data/e8ab8a83b/a982303367c4425091279f3881b2371a/FLAG29f695495 [2018-11-18 10:07:12,541 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/data/e8ab8a83b/a982303367c4425091279f3881b2371a [2018-11-18 10:07:12,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:07:12,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:07:12,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:07:12,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:07:12,548 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:07:12,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649eab1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12, skipping insertion in model container [2018-11-18 10:07:12,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:07:12,575 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:07:12,676 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:07:12,679 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:07:12,693 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:07:12,701 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:07:12,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12 WrapperNode [2018-11-18 10:07:12,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:07:12,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:07:12,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:07:12,702 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:07:12,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... [2018-11-18 10:07:12,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:07:12,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:07:12,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:07:12,722 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:07:12,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/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 10:07:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:07:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:07:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:07:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 10:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 10:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:07:12,933 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:07:12,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:07:12 BoogieIcfgContainer [2018-11-18 10:07:12,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:07:12,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:07:12,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:07:12,937 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:07:12,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:07:12" (1/3) ... [2018-11-18 10:07:12,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb1c4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:07:12, skipping insertion in model container [2018-11-18 10:07:12,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:07:12" (2/3) ... [2018-11-18 10:07:12,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb1c4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:07:12, skipping insertion in model container [2018-11-18 10:07:12,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:07:12" (3/3) ... [2018-11-18 10:07:12,940 INFO L112 eAbstractionObserver]: Analyzing ICFG MADWiFi-encode_ie_ok_true-unreach-call_true-termination.i [2018-11-18 10:07:12,948 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:07:12,954 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:07:12,968 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:07:12,993 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:07:12,994 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:07:12,994 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:07:12,994 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:07:12,994 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:07:12,994 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:07:12,995 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:07:12,995 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:07:12,995 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:07:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-18 10:07:13,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 10:07:13,015 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:07:13,015 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:07:13,017 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:07:13,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:07:13,022 INFO L82 PathProgramCache]: Analyzing trace with hash 802506358, now seen corresponding path program 1 times [2018-11-18 10:07:13,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:07:13,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:07:13,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:07:13,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:07:13,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:07:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:07:13,190 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 10:07:13,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:07:13,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:07:13,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:07:13,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:07:13,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:07:13,203 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2018-11-18 10:07:13,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:07:13,293 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2018-11-18 10:07:13,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:07:13,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 10:07:13,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:07:13,299 INFO L225 Difference]: With dead ends: 53 [2018-11-18 10:07:13,299 INFO L226 Difference]: Without dead ends: 29 [2018-11-18 10:07:13,301 INFO L604 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 [2018-11-18 10:07:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-18 10:07:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-18 10:07:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 10:07:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-11-18 10:07:13,326 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 19 [2018-11-18 10:07:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:07:13,327 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-11-18 10:07:13,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:07:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-11-18 10:07:13,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 10:07:13,327 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:07:13,328 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] [2018-11-18 10:07:13,328 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:07:13,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:07:13,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1083684374, now seen corresponding path program 1 times [2018-11-18 10:07:13,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:07:13,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:07:13,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:07:13,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:07:13,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:07:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:07:13,409 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 10:07:13,410 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:07:13,410 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/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 10:07:13,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:07:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:07:13,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:07:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:07:13,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:07:13,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-11-18 10:07:13,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:07:13,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:07:13,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:07:13,507 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 9 states. [2018-11-18 10:07:13,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:07:13,617 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-18 10:07:13,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:07:13,617 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-18 10:07:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:07:13,618 INFO L225 Difference]: With dead ends: 40 [2018-11-18 10:07:13,619 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 10:07:13,619 INFO L604 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 [2018-11-18 10:07:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 10:07:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-11-18 10:07:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:07:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-11-18 10:07:13,628 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 24 [2018-11-18 10:07:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:07:13,629 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-11-18 10:07:13,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:07:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-18 10:07:13,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 10:07:13,631 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:07:13,631 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] [2018-11-18 10:07:13,631 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:07:13,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:07:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1354781823, now seen corresponding path program 1 times [2018-11-18 10:07:13,632 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:07:13,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:07:13,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:07:13,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:07:13,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:07:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:07:13,739 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 10:07:13,739 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:07:13,739 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/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 10:07:13,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:07:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:07:13,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:07:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 10:07:13,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:07:13,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2018-11-18 10:07:13,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 10:07:13,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 10:07:13,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-11-18 10:07:13,884 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 14 states. [2018-11-18 10:07:14,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:07:14,078 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-11-18 10:07:14,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 10:07:14,078 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2018-11-18 10:07:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:07:14,079 INFO L225 Difference]: With dead ends: 44 [2018-11-18 10:07:14,079 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:07:14,080 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-18 10:07:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:07:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:07:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:07:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:07:14,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-11-18 10:07:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:07:14,080 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:07:14,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 10:07:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:07:14,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:07:14,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:07:14,158 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 10:07:14,158 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:07:14,158 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:07:14,158 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:07:14,158 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:07:14,158 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:07:14,159 INFO L425 ceAbstractionStarter]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2018-11-18 10:07:14,159 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)) [2018-11-18 10:07:14,159 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 42) no Hoare annotation was computed. [2018-11-18 10:07:14,159 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-18 10:07:14,159 INFO L428 ceAbstractionStarter]: At program point L40(lines 10 42) the Hoare annotation is: true [2018-11-18 10:07:14,159 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)) [2018-11-18 10:07:14,159 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)) [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 11 42) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L25(lines 11 42) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 42) the Hoare annotation is: true [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L26(lines 11 42) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L35-1(lines 35 39) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 10:07:14,160 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 10:07:14,161 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 10:07:14,161 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 10:07:14,161 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 10:07:14,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:07:14 BoogieIcfgContainer [2018-11-18 10:07:14,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:07:14,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:07:14,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:07:14,169 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:07:14,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:07:12" (3/4) ... [2018-11-18 10:07:14,172 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:07:14,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:07:14,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:07:14,176 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 10:07:14,179 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 10:07:14,179 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:07:14,179 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:07:14,211 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bade5b2b-d3ec-45be-8385-2af997290762/bin-2019/uautomizer/witness.graphml [2018-11-18 10:07:14,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:07:14,212 INFO L168 Benchmark]: Toolchain (without parser) took 1667.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 958.2 MB in the beginning and 956.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 145.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:07:14,213 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:07:14,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.98 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:07:14,214 INFO L168 Benchmark]: Boogie Preprocessor took 19.78 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:07:14,214 INFO L168 Benchmark]: RCFGBuilder took 212.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:07:14,215 INFO L168 Benchmark]: TraceAbstraction took 1233.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.6 MB in the end (delta: 163.2 MB). Peak memory consumption was 163.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:07:14,215 INFO L168 Benchmark]: Witness Printer took 42.82 ms. Allocated memory is still 1.2 GB. Free memory was 959.6 MB in the beginning and 956.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:07:14,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.98 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.78 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 212.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1233.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.6 MB in the end (delta: 163.2 MB). Peak memory consumption was 163.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.82 ms. Allocated memory is still 1.2 GB. Free memory was 959.6 MB in the beginning and 956.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 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, 0.4s 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, 0.4s 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...