./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/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 64e3171545e565243a03380a6c1febecc0f624e2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:31:32,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:31:32,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:31:32,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:31:32,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:31:32,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:31:32,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:31:32,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:31:32,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:31:32,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:31:32,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:31:32,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:31:32,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:31:32,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:31:32,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:31:32,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:31:32,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:31:32,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:31:32,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:31:32,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:31:32,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:31:32,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:31:32,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:31:32,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:31:32,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:31:32,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:31:32,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:31:32,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:31:32,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:31:32,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:31:32,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:31:32,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:31:32,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:31:32,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:31:32,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:31:32,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:31:32,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:31:32,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:31:32,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:31:32,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:31:32,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:31:32,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:31:32,967 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:31:32,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:31:32,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:31:32,978 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:31:32,978 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:31:32,978 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:31:32,978 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:31:32,979 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:31:32,979 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:31:32,979 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:31:32,979 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:31:32,979 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:31:32,980 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:31:32,980 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:31:32,980 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:31:32,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:31:32,981 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:31:32,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:31:32,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:31:32,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:31:32,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:31:32,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:31:32,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:31:32,983 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:31:32,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:31:32,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:31:32,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:31:32,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:31:32,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:31:32,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:31:32,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:31:32,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:31:32,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:31:32,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:31:32,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:31:32,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:31:32,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:31:32,986 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_eccb3325-e37a-4268-9255-887710ca6320/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 -> 64e3171545e565243a03380a6c1febecc0f624e2 [2019-11-26 02:31:33,147 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:31:33,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:31:33,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:31:33,165 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:31:33,165 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:31:33,166 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2019-11-26 02:31:33,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/data/cce7ad3d0/6f770e09cb844bc094d7123228e6b53a/FLAG60e4f705a [2019-11-26 02:31:33,740 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:31:33,741 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/sv-benchmarks/c/product-lines/email_spec0_product37.cil.c [2019-11-26 02:31:33,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/data/cce7ad3d0/6f770e09cb844bc094d7123228e6b53a/FLAG60e4f705a [2019-11-26 02:31:34,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/data/cce7ad3d0/6f770e09cb844bc094d7123228e6b53a [2019-11-26 02:31:34,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:31:34,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:31:34,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:34,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:31:34,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:31:34,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:34,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf576ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34, skipping insertion in model container [2019-11-26 02:31:34,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:34,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:31:34,090 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:31:34,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:34,727 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:31:34,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:34,924 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:31:34,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34 WrapperNode [2019-11-26 02:31:34,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:34,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:34,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:31:34,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:31:34,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:34,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:35,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:31:35,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:31:35,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:31:35,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... [2019-11-26 02:31:35,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:31:35,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:31:35,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:31:35,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:31:35,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/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 [2019-11-26 02:31:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:31:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:31:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:31:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:31:35,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:31:40,098 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:31:40,099 INFO L284 CfgBuilder]: Removed 247 assume(true) statements. [2019-11-26 02:31:40,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:40 BoogieIcfgContainer [2019-11-26 02:31:40,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:31:40,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:31:40,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:31:40,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:31:40,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:31:34" (1/3) ... [2019-11-26 02:31:40,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60758e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:40, skipping insertion in model container [2019-11-26 02:31:40,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:34" (2/3) ... [2019-11-26 02:31:40,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60758e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:40, skipping insertion in model container [2019-11-26 02:31:40,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:40" (3/3) ... [2019-11-26 02:31:40,106 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product37.cil.c [2019-11-26 02:31:40,113 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:31:40,118 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:31:40,128 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:31:40,147 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:31:40,148 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:31:40,148 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:31:40,148 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:31:40,148 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:31:40,148 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:31:40,149 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:31:40,149 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:31:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-11-26 02:31:40,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:31:40,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:40,169 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:40,169 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:40,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:40,175 INFO L82 PathProgramCache]: Analyzing trace with hash 26766094, now seen corresponding path program 1 times [2019-11-26 02:31:40,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:40,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779384003] [2019-11-26 02:31:40,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:40,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779384003] [2019-11-26 02:31:40,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:40,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:31:40,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273672843] [2019-11-26 02:31:40,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:31:40,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:40,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:31:40,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:31:40,506 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2019-11-26 02:31:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:40,523 INFO L93 Difference]: Finished difference Result 56 states and 89 transitions. [2019-11-26 02:31:40,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:31:40,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:31:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:40,534 INFO L225 Difference]: With dead ends: 56 [2019-11-26 02:31:40,534 INFO L226 Difference]: Without dead ends: 38 [2019-11-26 02:31:40,537 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:31:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-26 02:31:40,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-11-26 02:31:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-26 02:31:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2019-11-26 02:31:40,572 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 7 [2019-11-26 02:31:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:40,572 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2019-11-26 02:31:40,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:31:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2019-11-26 02:31:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:31:40,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:40,574 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:40,574 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:40,574 INFO L82 PathProgramCache]: Analyzing trace with hash -8289721, now seen corresponding path program 1 times [2019-11-26 02:31:40,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:40,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642157079] [2019-11-26 02:31:40,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:31:40,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642157079] [2019-11-26 02:31:40,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:40,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:31:40,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680274405] [2019-11-26 02:31:40,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:31:40,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:40,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:31:40,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:31:40,683 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 3 states. [2019-11-26 02:31:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:40,699 INFO L93 Difference]: Finished difference Result 52 states and 76 transitions. [2019-11-26 02:31:40,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:31:40,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:31:40,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:40,702 INFO L225 Difference]: With dead ends: 52 [2019-11-26 02:31:40,702 INFO L226 Difference]: Without dead ends: 40 [2019-11-26 02:31:40,703 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:31:40,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-26 02:31:40,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-26 02:31:40,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-26 02:31:40,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 63 transitions. [2019-11-26 02:31:40,712 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 63 transitions. Word has length 8 [2019-11-26 02:31:40,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:40,713 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 63 transitions. [2019-11-26 02:31:40,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:31:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2019-11-26 02:31:40,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:31:40,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:40,717 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:31:40,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:40,718 INFO L82 PathProgramCache]: Analyzing trace with hash 647732395, now seen corresponding path program 1 times [2019-11-26 02:31:40,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:40,719 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773988873] [2019-11-26 02:31:40,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:40,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:31:40,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773988873] [2019-11-26 02:31:40,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:40,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:31:40,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821350309] [2019-11-26 02:31:40,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:31:40,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:31:40,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:31:40,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:31:40,893 INFO L87 Difference]: Start difference. First operand 40 states and 63 transitions. Second operand 3 states. [2019-11-26 02:31:40,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:40,903 INFO L93 Difference]: Finished difference Result 43 states and 66 transitions. [2019-11-26 02:31:40,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:31:40,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-26 02:31:40,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:40,904 INFO L225 Difference]: With dead ends: 43 [2019-11-26 02:31:40,905 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:31:40,905 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:31:40,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:31:40,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:31:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:31:40,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:31:40,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-26 02:31:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:40,906 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:31:40,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:31:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:31:40,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:31:40,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:31:40,955 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-11-26 02:31:40,956 INFO L447 ceAbstractionStarter]: At program point L2679(lines 2679 2686) the Hoare annotation is: true [2019-11-26 02:31:40,956 INFO L447 ceAbstractionStarter]: At program point L2746(lines 2746 2753) the Hoare annotation is: true [2019-11-26 02:31:40,956 INFO L447 ceAbstractionStarter]: At program point L175(lines 175 183) the Hoare annotation is: true [2019-11-26 02:31:40,956 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-26 02:31:40,956 INFO L444 ceAbstractionStarter]: For program point L43-1(line 43) no Hoare annotation was computed. [2019-11-26 02:31:40,956 INFO L440 ceAbstractionStarter]: At program point L44(lines 2567 2584) the Hoare annotation is: (<= 1 ULTIMATE.start___utac_acc__DecryptForward_spec__1_~tmp~16) [2019-11-26 02:31:40,956 INFO L447 ceAbstractionStarter]: At program point L44-1(lines 2567 2584) the Hoare annotation is: true [2019-11-26 02:31:40,956 INFO L447 ceAbstractionStarter]: At program point L2688(lines 2675 2791) the Hoare annotation is: true [2019-11-26 02:31:40,957 INFO L447 ceAbstractionStarter]: At program point L2755(lines 2742 2786) the Hoare annotation is: true [2019-11-26 02:31:40,957 INFO L444 ceAbstractionStarter]: For program point L2626(lines 2625 2795) no Hoare annotation was computed. [2019-11-26 02:31:40,957 INFO L447 ceAbstractionStarter]: At program point L2693(lines 2693 2700) the Hoare annotation is: true [2019-11-26 02:31:40,957 INFO L447 ceAbstractionStarter]: At program point L2760(lines 2760 2767) the Hoare annotation is: true [2019-11-26 02:31:40,957 INFO L444 ceAbstractionStarter]: For program point L2633(lines 2633 2794) no Hoare annotation was computed. [2019-11-26 02:31:40,957 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:31:40,957 INFO L447 ceAbstractionStarter]: At program point L2702(lines 2689 2790) the Hoare annotation is: true [2019-11-26 02:31:40,958 INFO L447 ceAbstractionStarter]: At program point L2769(lines 2756 2785) the Hoare annotation is: true [2019-11-26 02:31:40,958 INFO L447 ceAbstractionStarter]: At program point L2637(lines 2637 2644) the Hoare annotation is: true [2019-11-26 02:31:40,958 INFO L447 ceAbstractionStarter]: At program point L2707(lines 2707 2714) the Hoare annotation is: true [2019-11-26 02:31:40,958 INFO L444 ceAbstractionStarter]: For program point L2575(lines 2575 2581) no Hoare annotation was computed. [2019-11-26 02:31:40,958 INFO L444 ceAbstractionStarter]: For program point L2575-2(lines 2575 2581) no Hoare annotation was computed. [2019-11-26 02:31:40,958 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L2774(lines 2774 2781) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L2774-1(lines 2625 2795) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L2646(lines 2633 2794) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L2716(lines 2703 2789) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L2651(lines 2651 2658) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L2721(lines 2721 2728) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L1535(lines 1535 1542) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L1535-1(lines 1 2803) the Hoare annotation is: true [2019-11-26 02:31:40,959 INFO L447 ceAbstractionStarter]: At program point L1535-2(lines 1535 1542) the Hoare annotation is: true [2019-11-26 02:31:40,960 INFO L447 ceAbstractionStarter]: At program point L2660(lines 2647 2793) the Hoare annotation is: true [2019-11-26 02:31:40,960 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:31:40,960 INFO L447 ceAbstractionStarter]: At program point L2796(lines 2624 2797) the Hoare annotation is: true [2019-11-26 02:31:40,961 INFO L447 ceAbstractionStarter]: At program point L2730(lines 2717 2788) the Hoare annotation is: true [2019-11-26 02:31:40,961 INFO L447 ceAbstractionStarter]: At program point L2665(lines 2665 2672) the Hoare annotation is: true [2019-11-26 02:31:40,961 INFO L444 ceAbstractionStarter]: For program point L2735(lines 2735 2739) no Hoare annotation was computed. [2019-11-26 02:31:40,961 INFO L447 ceAbstractionStarter]: At program point L2674(lines 2661 2792) the Hoare annotation is: true [2019-11-26 02:31:40,961 INFO L447 ceAbstractionStarter]: At program point L2741(lines 2731 2787) the Hoare annotation is: true [2019-11-26 02:31:40,961 INFO L447 ceAbstractionStarter]: At program point L231(lines 231 238) the Hoare annotation is: true [2019-11-26 02:31:40,962 INFO L447 ceAbstractionStarter]: At program point L231-1(lines 231 238) the Hoare annotation is: true [2019-11-26 02:31:40,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:31:40 BoogieIcfgContainer [2019-11-26 02:31:40,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:31:40,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:31:40,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:31:40,973 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:31:40,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:40" (3/4) ... [2019-11-26 02:31:40,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:31:41,015 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 403 nodes and edges [2019-11-26 02:31:41,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 100 nodes and edges [2019-11-26 02:31:41,024 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2019-11-26 02:31:41,028 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:31:41,032 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:31:41,036 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:31:41,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eccb3325-e37a-4268-9255-887710ca6320/bin/utaipan/witness.graphml [2019-11-26 02:31:41,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:31:41,312 INFO L168 Benchmark]: Toolchain (without parser) took 7302.43 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 373.8 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -201.1 MB). Peak memory consumption was 172.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,312 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:31:41,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,313 INFO L168 Benchmark]: Boogie Preprocessor took 119.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,314 INFO L168 Benchmark]: RCFGBuilder took 4895.75 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 203.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -166.5 MB). Peak memory consumption was 343.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,314 INFO L168 Benchmark]: TraceAbstraction took 871.51 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,315 INFO L168 Benchmark]: Witness Printer took 337.07 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:41,317 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 915.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 158.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 119.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4895.75 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 203.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -166.5 MB). Peak memory consumption was 343.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 871.51 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 78.4 MB). Peak memory consumption was 78.4 MB. Max. memory is 11.5 GB. * Witness Printer took 337.07 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: 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: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2742]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2689]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2647]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1535]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2651]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2746]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2693]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2679]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2637]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2633]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2721]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2717]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2731]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2625]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2675]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2707]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2665]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1535]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2661]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2567]: Loop Invariant Derived loop invariant: 1 <= tmp - InvariantResult [Line: 2760]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2756]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2703]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 2 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 4 SDslu, 111 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 31 PreInvPairs, 43 NumberOfFragments, 33 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...