./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product24.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_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/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 d8967359a452e7dcfb51935c753a6eca3ffe3494 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:57:11,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:11,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:11,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:11,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:11,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:11,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:11,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:11,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:11,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:11,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:11,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:11,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:11,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:11,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:11,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:11,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:11,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:11,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:11,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:11,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:11,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:11,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:11,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:11,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:11,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:11,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:11,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:11,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:11,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:11,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:11,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:11,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:11,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:11,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:11,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:11,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:11,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:11,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:11,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:11,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:11,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:57:11,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:11,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:11,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:11,928 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:57:11,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:57:11,928 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:57:11,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:57:11,929 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:57:11,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:57:11,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:57:11,930 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:57:11,931 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:57:11,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:57:11,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:57:11,931 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:57:11,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:11,932 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:57:11,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:57:11,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:57:11,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:11,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:11,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:11,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:11,934 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:57:11,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:11,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:11,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:11,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:11,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:57:11,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:57:11,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:11,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:11,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:11,936 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:57:11,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:57:11,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:11,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:57:11,937 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_2848a735-10fe-4799-8237-26e38df109a7/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 -> d8967359a452e7dcfb51935c753a6eca3ffe3494 [2019-11-26 02:57:12,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:12,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:12,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:12,102 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:12,102 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:12,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/../../sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2019-11-26 02:57:12,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/data/2ec14a628/289a77de225648438db14f07694d8c08/FLAG97b5ae21e [2019-11-26 02:57:12,683 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:12,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/sv-benchmarks/c/product-lines/email_spec7_product24.cil.c [2019-11-26 02:57:12,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/data/2ec14a628/289a77de225648438db14f07694d8c08/FLAG97b5ae21e [2019-11-26 02:57:13,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/data/2ec14a628/289a77de225648438db14f07694d8c08 [2019-11-26 02:57:13,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:13,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:13,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:13,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:13,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:13,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:13,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0d7a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13, skipping insertion in model container [2019-11-26 02:57:13,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:13,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:13,214 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:13,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:13,718 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:57:13,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:13,903 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:57:13,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13 WrapperNode [2019-11-26 02:57:13,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:13,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:13,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:57:13,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:57:13,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:13,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:14,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:57:14,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:57:14,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:57:14,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... [2019-11-26 02:57:14,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:57:14,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:57:14,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:57:14,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:57:14,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/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 02:57:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-26 02:57:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:57:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:57:14,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:57:14,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:57:21,344 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:57:21,344 INFO L284 CfgBuilder]: Removed 323 assume(true) statements. [2019-11-26 02:57:21,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:21 BoogieIcfgContainer [2019-11-26 02:57:21,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:57:21,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:57:21,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:57:21,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:57:21,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:57:13" (1/3) ... [2019-11-26 02:57:21,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49736a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:21, skipping insertion in model container [2019-11-26 02:57:21,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:13" (2/3) ... [2019-11-26 02:57:21,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49736a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:21, skipping insertion in model container [2019-11-26 02:57:21,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:21" (3/3) ... [2019-11-26 02:57:21,358 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product24.cil.c [2019-11-26 02:57:21,366 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:57:21,374 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-26 02:57:21,384 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-26 02:57:21,413 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:57:21,413 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:57:21,413 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:57:21,413 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:57:21,413 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:57:21,414 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:57:21,414 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:57:21,414 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:57:21,429 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-26 02:57:21,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:57:21,440 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:21,441 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:57:21,442 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:21,448 INFO L82 PathProgramCache]: Analyzing trace with hash -456248831, now seen corresponding path program 1 times [2019-11-26 02:57:21,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:21,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617641604] [2019-11-26 02:57:21,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:21,751 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 02:57:21,751 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617641604] [2019-11-26 02:57:21,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:21,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:57:21,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177342882] [2019-11-26 02:57:21,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:57:21,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:21,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:57:21,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:57:21,772 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-11-26 02:57:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:21,791 INFO L93 Difference]: Finished difference Result 50 states and 79 transitions. [2019-11-26 02:57:21,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:57:21,793 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-26 02:57:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:21,802 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:57:21,802 INFO L226 Difference]: Without dead ends: 35 [2019-11-26 02:57:21,805 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 02:57:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-26 02:57:21,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-26 02:57:21,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-26 02:57:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 57 transitions. [2019-11-26 02:57:21,838 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 57 transitions. Word has length 6 [2019-11-26 02:57:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:21,839 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 57 transitions. [2019-11-26 02:57:21,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:57:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 57 transitions. [2019-11-26 02:57:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:57:21,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:21,839 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:21,839 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:21,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1002574014, now seen corresponding path program 1 times [2019-11-26 02:57:21,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:21,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321217496] [2019-11-26 02:57:21,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:21,946 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 02:57:21,946 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321217496] [2019-11-26 02:57:21,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:21,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:57:21,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5313925] [2019-11-26 02:57:21,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:57:21,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:21,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:57:21,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:21,949 INFO L87 Difference]: Start difference. First operand 35 states and 57 transitions. Second operand 3 states. [2019-11-26 02:57:21,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:21,968 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2019-11-26 02:57:21,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:57:21,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-26 02:57:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:21,972 INFO L225 Difference]: With dead ends: 46 [2019-11-26 02:57:21,972 INFO L226 Difference]: Without dead ends: 37 [2019-11-26 02:57:21,973 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 02:57:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-26 02:57:21,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-26 02:57:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-26 02:57:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 59 transitions. [2019-11-26 02:57:21,979 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 59 transitions. Word has length 7 [2019-11-26 02:57:21,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:21,979 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 59 transitions. [2019-11-26 02:57:21,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:57:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2019-11-26 02:57:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:57:21,980 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:21,980 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:21,980 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:21,981 INFO L82 PathProgramCache]: Analyzing trace with hash 480811689, now seen corresponding path program 1 times [2019-11-26 02:57:21,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:21,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089079118] [2019-11-26 02:57:21,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:22,114 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 02:57:22,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089079118] [2019-11-26 02:57:22,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:22,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:57:22,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520199145] [2019-11-26 02:57:22,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:57:22,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:22,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:57:22,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:57:22,116 INFO L87 Difference]: Start difference. First operand 37 states and 59 transitions. Second operand 3 states. [2019-11-26 02:57:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:22,136 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2019-11-26 02:57:22,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:57:22,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-26 02:57:22,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:22,138 INFO L225 Difference]: With dead ends: 37 [2019-11-26 02:57:22,138 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:57:22,138 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 02:57:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:57:22,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:57:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:57:22,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:57:22,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-26 02:57:22,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:22,139 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:57:22,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:57:22,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:57:22,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:57:22,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:57:22,202 INFO L447 ceAbstractionStarter]: At program point L237(lines 237 244) the Hoare annotation is: true [2019-11-26 02:57:22,202 INFO L447 ceAbstractionStarter]: At program point L237-1(lines 88 258) the Hoare annotation is: true [2019-11-26 02:57:22,202 INFO L440 ceAbstractionStarter]: At program point L1162(lines 1162 1170) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~18) [2019-11-26 02:57:22,202 INFO L447 ceAbstractionStarter]: At program point L109(lines 96 257) the Hoare annotation is: true [2019-11-26 02:57:22,202 INFO L447 ceAbstractionStarter]: At program point L114(lines 114 121) the Hoare annotation is: true [2019-11-26 02:57:22,203 INFO L444 ceAbstractionStarter]: For program point L2763(lines 2763 2769) no Hoare annotation was computed. [2019-11-26 02:57:22,203 INFO L444 ceAbstractionStarter]: For program point L2763-2(lines 2763 2769) no Hoare annotation was computed. [2019-11-26 02:57:22,203 INFO L447 ceAbstractionStarter]: At program point L123(lines 110 256) the Hoare annotation is: true [2019-11-26 02:57:22,203 INFO L447 ceAbstractionStarter]: At program point L259(lines 87 260) the Hoare annotation is: true [2019-11-26 02:57:22,203 INFO L447 ceAbstractionStarter]: At program point L128(lines 128 135) the Hoare annotation is: true [2019-11-26 02:57:22,203 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2926) no Hoare annotation was computed. [2019-11-26 02:57:22,203 INFO L447 ceAbstractionStarter]: At program point L137(lines 124 255) the Hoare annotation is: true [2019-11-26 02:57:22,203 INFO L447 ceAbstractionStarter]: At program point L142(lines 142 149) the Hoare annotation is: true [2019-11-26 02:57:22,203 INFO L447 ceAbstractionStarter]: At program point L151(lines 138 254) the Hoare annotation is: true [2019-11-26 02:57:22,204 INFO L444 ceAbstractionStarter]: For program point L2926(line 2926) no Hoare annotation was computed. [2019-11-26 02:57:22,204 INFO L444 ceAbstractionStarter]: For program point L2926-1(line 2926) no Hoare annotation was computed. [2019-11-26 02:57:22,204 INFO L447 ceAbstractionStarter]: At program point L2927-1(lines 2756 2772) the Hoare annotation is: true [2019-11-26 02:57:22,204 INFO L440 ceAbstractionStarter]: At program point L2927(lines 2756 2772) the Hoare annotation is: (= 1 ULTIMATE.start___utac_acc__EncryptVerify_spec__1_~tmp~18) [2019-11-26 02:57:22,204 INFO L447 ceAbstractionStarter]: At program point L156(lines 156 163) the Hoare annotation is: true [2019-11-26 02:57:22,204 INFO L447 ceAbstractionStarter]: At program point L1218(lines 1218 1225) the Hoare annotation is: true [2019-11-26 02:57:22,204 INFO L447 ceAbstractionStarter]: At program point L1218-1(lines 1218 1225) the Hoare annotation is: true [2019-11-26 02:57:22,204 INFO L447 ceAbstractionStarter]: At program point L165(lines 152 253) the Hoare annotation is: true [2019-11-26 02:57:22,204 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 2926) no Hoare annotation was computed. [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point L170(lines 170 177) the Hoare annotation is: true [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point L179(lines 166 252) the Hoare annotation is: true [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point L184(lines 184 191) the Hoare annotation is: true [2019-11-26 02:57:22,205 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point L193(lines 180 251) the Hoare annotation is: true [2019-11-26 02:57:22,205 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 202) no Hoare annotation was computed. [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point L204(lines 194 250) the Hoare annotation is: true [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point L209(lines 209 216) the Hoare annotation is: true [2019-11-26 02:57:22,205 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:57:22,206 INFO L447 ceAbstractionStarter]: At program point L218(lines 205 249) the Hoare annotation is: true [2019-11-26 02:57:22,206 INFO L444 ceAbstractionStarter]: For program point L89(lines 88 258) no Hoare annotation was computed. [2019-11-26 02:57:22,206 INFO L447 ceAbstractionStarter]: At program point L223(lines 223 230) the Hoare annotation is: true [2019-11-26 02:57:22,206 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 257) no Hoare annotation was computed. [2019-11-26 02:57:22,206 INFO L447 ceAbstractionStarter]: At program point L232(lines 219 248) the Hoare annotation is: true [2019-11-26 02:57:22,206 INFO L447 ceAbstractionStarter]: At program point L100(lines 100 107) the Hoare annotation is: true [2019-11-26 02:57:22,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:57:22 BoogieIcfgContainer [2019-11-26 02:57:22,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:57:22,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:57:22,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:57:22,222 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:57:22,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:21" (3/4) ... [2019-11-26 02:57:22,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:57:22,271 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 537 nodes and edges [2019-11-26 02:57:22,276 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 128 nodes and edges [2019-11-26 02:57:22,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-11-26 02:57:22,288 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:57:22,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:57:22,300 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:57:22,556 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2848a735-10fe-4799-8237-26e38df109a7/bin/utaipan/witness.graphml [2019-11-26 02:57:22,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:57:22,558 INFO L168 Benchmark]: Toolchain (without parser) took 9431.52 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,558 INFO L168 Benchmark]: CDTParser took 0.17 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 02:57:22,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.89 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,560 INFO L168 Benchmark]: Boogie Preprocessor took 128.77 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,560 INFO L168 Benchmark]: RCFGBuilder took 7193.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -175.7 MB). Peak memory consumption was 446.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,561 INFO L168 Benchmark]: TraceAbstraction took 874.27 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,561 INFO L168 Benchmark]: Witness Printer took 334.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:22,563 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 777.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.89 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 128.77 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7193.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -175.7 MB). Peak memory consumption was 446.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 874.27 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * Witness Printer took 334.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2926]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2926]: 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: 2756]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1162]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2756]: Loop Invariant Derived loop invariant: 1 == tmp - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1218]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1218]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 2 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 170 SDtfs, 2 SDslu, 103 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=38occurred 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, 28 LocationsWithAnnotation, 28 PreInvPairs, 34 NumberOfFragments, 32 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 205 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...