./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77e92a11a4549a6f714898b45c2d349723607a29 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:48:42,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:48:42,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:48:42,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:48:42,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:48:42,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:48:42,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:48:42,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:48:42,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:48:42,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:48:42,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:48:42,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:48:42,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:48:42,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:48:42,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:48:42,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:48:42,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:48:42,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:48:42,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:48:42,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:48:42,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:48:42,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:48:42,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:48:42,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:48:42,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:48:42,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:48:42,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:48:42,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:48:42,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:48:42,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:48:42,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:48:42,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:48:42,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:48:42,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:48:42,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:48:42,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:48:42,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:48:42,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:48:42,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:48:42,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:48:42,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:48:42,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:48:42,113 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:48:42,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:48:42,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:48:42,114 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:48:42,114 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:48:42,115 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:48:42,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:48:42,115 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:48:42,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:48:42,115 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:48:42,116 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:48:42,116 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:48:42,116 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:48:42,116 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:48:42,116 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:48:42,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:48:42,117 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:48:42,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:48:42,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:48:42,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:48:42,119 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:48:42,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:48:42,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:48:42,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:48:42,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:48:42,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:48:42,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:48:42,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:48:42,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:48:42,120 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:48:42,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:48:42,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:48:42,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:48:42,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:48:42,121 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e92a11a4549a6f714898b45c2d349723607a29 [2019-12-07 20:48:42,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:48:42,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:48:42,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:48:42,244 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:48:42,244 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:48:42,244 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/../../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2019-12-07 20:48:42,280 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/data/dd1ac9708/51ba97c987b14061b89eb451c7fde0c5/FLAG726270eb9 [2019-12-07 20:48:42,712 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:48:42,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2019-12-07 20:48:42,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/data/dd1ac9708/51ba97c987b14061b89eb451c7fde0c5/FLAG726270eb9 [2019-12-07 20:48:42,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/data/dd1ac9708/51ba97c987b14061b89eb451c7fde0c5 [2019-12-07 20:48:42,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:48:42,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:48:42,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:48:42,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:48:42,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:48:42,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1f8437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42, skipping insertion in model container [2019-12-07 20:48:42,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:48:42,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:48:42,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:48:42,850 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:48:42,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:48:42,900 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:48:42,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42 WrapperNode [2019-12-07 20:48:42,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:48:42,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:48:42,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:48:42,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:48:42,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:48:42,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:48:42,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:48:42,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:48:42,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... [2019-12-07 20:48:42,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:48:42,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:48:42,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:48:42,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:48:42,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/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 [2019-12-07 20:48:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:48:42,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:48:43,106 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:48:43,106 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 20:48:43,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:48:43 BoogieIcfgContainer [2019-12-07 20:48:43,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:48:43,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:48:43,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:48:43,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:48:43,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:48:42" (1/3) ... [2019-12-07 20:48:43,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1582ae2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:48:43, skipping insertion in model container [2019-12-07 20:48:43,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:48:42" (2/3) ... [2019-12-07 20:48:43,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1582ae2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:48:43, skipping insertion in model container [2019-12-07 20:48:43,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:48:43" (3/3) ... [2019-12-07 20:48:43,112 INFO L109 eAbstractionObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.i [2019-12-07 20:48:43,118 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:48:43,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 20:48:43,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 20:48:43,143 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:48:43,143 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:48:43,144 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:48:43,144 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:48:43,144 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:48:43,144 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:48:43,144 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:48:43,144 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:48:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 20:48:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 20:48:43,157 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:48:43,157 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:48:43,158 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:48:43,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:48:43,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1314021635, now seen corresponding path program 1 times [2019-12-07 20:48:43,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:48:43,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389519672] [2019-12-07 20:48:43,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:48:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:48:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:48:43,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389519672] [2019-12-07 20:48:43,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:48:43,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 20:48:43,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100312677] [2019-12-07 20:48:43,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:48:43,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:48:43,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:48:43,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:48:43,304 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2019-12-07 20:48:43,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:48:43,365 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2019-12-07 20:48:43,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:48:43,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 20:48:43,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:48:43,374 INFO L225 Difference]: With dead ends: 36 [2019-12-07 20:48:43,375 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 20:48:43,377 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:48:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 20:48:43,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 20:48:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 20:48:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-12-07 20:48:43,402 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2019-12-07 20:48:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:48:43,402 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-12-07 20:48:43,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:48:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-12-07 20:48:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 20:48:43,403 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:48:43,403 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:48:43,403 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:48:43,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:48:43,403 INFO L82 PathProgramCache]: Analyzing trace with hash 54563046, now seen corresponding path program 1 times [2019-12-07 20:48:43,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:48:43,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492129063] [2019-12-07 20:48:43,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:48:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:48:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:48:43,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492129063] [2019-12-07 20:48:43,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:48:43,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 20:48:43,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884847438] [2019-12-07 20:48:43,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:48:43,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:48:43,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:48:43,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:48:43,460 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2019-12-07 20:48:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:48:43,505 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-12-07 20:48:43,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:48:43,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 20:48:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:48:43,507 INFO L225 Difference]: With dead ends: 23 [2019-12-07 20:48:43,507 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 20:48:43,508 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:48:43,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 20:48:43,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-12-07 20:48:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 20:48:43,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-12-07 20:48:43,513 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 14 [2019-12-07 20:48:43,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:48:43,514 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-12-07 20:48:43,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:48:43,514 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-12-07 20:48:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:48:43,514 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:48:43,514 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:48:43,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:48:43,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:48:43,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1785729290, now seen corresponding path program 1 times [2019-12-07 20:48:43,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:48:43,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837496846] [2019-12-07 20:48:43,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:48:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:48:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 20:48:43,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837496846] [2019-12-07 20:48:43,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577389584] [2019-12-07 20:48:43,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:48:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:48:43,612 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 20:48:43,616 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:48:43,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:48:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:48:43,681 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:48:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:48:43,725 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1962518159] [2019-12-07 20:48:43,741 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-12-07 20:48:43,741 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:48:43,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:48:43,749 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:48:43,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:48:43,873 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:48:44,470 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:48:44,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:48:44,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 12 [2019-12-07 20:48:44,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951035026] [2019-12-07 20:48:44,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 20:48:44,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:48:44,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 20:48:44,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2019-12-07 20:48:44,473 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 12 states. [2019-12-07 20:48:44,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:48:44,636 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-12-07 20:48:44,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-07 20:48:44,637 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2019-12-07 20:48:44,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:48:44,637 INFO L225 Difference]: With dead ends: 26 [2019-12-07 20:48:44,637 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:48:44,638 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=1167, Unknown=0, NotChecked=0, Total=1406 [2019-12-07 20:48:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:48:44,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:48:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:48:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:48:44,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-07 20:48:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:48:44,639 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:48:44,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 20:48:44,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:48:44,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:48:44,840 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:48:44,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:48:44,945 INFO L242 CegarLoopResult]: At program point L35-3(lines 35 39) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~leader_len~0)) (.cse1 (+ (* 2 ULTIMATE.start_main_~ielen~0) ULTIMATE.start_main_~p~0)) (.cse2 (<= 1 ULTIMATE.start_main_~p~0))) (or (and .cse0 (<= .cse1 ULTIMATE.start_main_~bufsize_0~0) (<= (+ ULTIMATE.start_main_~bufsize~0 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~bufsize_0~0) .cse2 (<= 0 ULTIMATE.start_main_~i~0)) (and .cse0 (<= .cse1 (+ ULTIMATE.start_main_~bufsize_0~0 (* 2 ULTIMATE.start_main_~i~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2))) [2019-12-07 20:48:44,945 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 20:48:44,945 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L249 CegarLoopResult]: At program point L40(lines 11 42) the Hoare annotation is: true [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point L24-1(lines 11 42) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~leader_len~0) (<= (+ ULTIMATE.start_main_~p~0 2) ULTIMATE.start_main_~bufsize_0~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ (* 2 ULTIMATE.start_main_~ielen~0) ULTIMATE.start_main_~p~0) (+ ULTIMATE.start_main_~bufsize_0~0 (* 2 ULTIMATE.start_main_~i~0))) (<= 1 ULTIMATE.start_main_~p~0)) [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-12-07 20:48:44,946 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:48:44,947 INFO L242 CegarLoopResult]: At program point L4-5(lines 3 8) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~leader_len~0) (<= (+ ULTIMATE.start_main_~p~0 2) ULTIMATE.start_main_~bufsize_0~0) (<= (+ (* 2 ULTIMATE.start_main_~ielen~0) ULTIMATE.start_main_~p~0) (+ ULTIMATE.start_main_~bufsize_0~0 (* 2 ULTIMATE.start_main_~i~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~p~0)) [2019-12-07 20:48:44,947 INFO L246 CegarLoopResult]: For program point L25(lines 11 42) no Hoare annotation was computed. [2019-12-07 20:48:44,947 INFO L246 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2019-12-07 20:48:44,947 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 20:48:44,947 INFO L246 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-12-07 20:48:44,947 INFO L246 CegarLoopResult]: For program point L26(lines 11 42) no Hoare annotation was computed. [2019-12-07 20:48:44,947 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 20:48:44,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:48:44 BoogieIcfgContainer [2019-12-07 20:48:44,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:48:44,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:48:44,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:48:44,960 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:48:44,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:48:43" (3/4) ... [2019-12-07 20:48:44,962 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:48:44,968 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 20:48:44,968 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 20:48:45,001 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ea9505bd-c096-48b5-adf5-6f4a7c73ec51/bin/utaipan/witness.graphml [2019-12-07 20:48:45,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:48:45,003 INFO L168 Benchmark]: Toolchain (without parser) took 2274.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -83.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:45,003 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:48:45,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:45,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:48:45,004 INFO L168 Benchmark]: Boogie Preprocessor took 12.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:48:45,004 INFO L168 Benchmark]: RCFGBuilder took 171.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:45,005 INFO L168 Benchmark]: TraceAbstraction took 1851.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:45,005 INFO L168 Benchmark]: Witness Printer took 42.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:48:45,006 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 171.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1851.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Witness Printer took 42.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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 - 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 2 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (((1 <= leader_len && p + 2 <= bufsize_0) && 2 * ielen + p <= bufsize_0 + 2 * i) && 1 == cond) && 1 <= p - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((1 <= leader_len && 2 * ielen + p <= bufsize_0) && bufsize + p <= bufsize_0) && 1 <= p) && 0 <= i) || (((1 <= leader_len && 2 * ielen + p <= bufsize_0 + 2 * i) && 1 == cond) && 1 <= p) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (((1 <= leader_len && p + 2 <= bufsize_0) && !(0 == cond)) && 2 * ielen + p <= bufsize_0 + 2 * i) && 1 <= p - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 45 SDtfs, 52 SDslu, 92 SDs, 0 SdLazy, 90 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 98 HoareAnnotationTreeSize, 4 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 5864 SizeOfPredicates, 11 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...