./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/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 91fda61e05234dbe68b069d372f5d4b0bb73b229 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:47,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:47,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:47,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:47,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:47,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:47,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:47,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:47,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:47,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:47,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:47,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:47,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:47,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:47,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:47,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:47,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:47,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:47,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:47,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:47,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:47,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:47,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:47,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:47,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:47,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:47,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:47,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:47,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:47,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:47,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:47,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:47,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:47,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:47,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:47,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:47,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:47,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:47,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:47,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:47,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:47,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:47,894 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:47,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:47,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:47,896 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:47,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:47,896 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:47,897 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:47,897 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:47,897 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:47,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:47,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:47,897 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:47,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:47,898 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:47,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:47,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:47,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:47,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:47,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:47,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:47,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:47,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:47,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:47,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:47,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:47,903 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:47,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:47,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:47,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:47,904 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/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/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 -> 91fda61e05234dbe68b069d372f5d4b0bb73b229 [2019-10-22 11:21:47,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:47,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:47,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:47,968 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:47,968 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:47,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c [2019-10-22 11:21:48,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/data/68ed0ca64/3c19d79cd9f6495fb8e20b4d1101141a/FLAGec1b3e6a9 [2019-10-22 11:21:48,439 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:48,440 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c [2019-10-22 11:21:48,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/data/68ed0ca64/3c19d79cd9f6495fb8e20b4d1101141a/FLAGec1b3e6a9 [2019-10-22 11:21:48,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/data/68ed0ca64/3c19d79cd9f6495fb8e20b4d1101141a [2019-10-22 11:21:48,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:48,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:48,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:48,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:48,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:48,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3930d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48, skipping insertion in model container [2019-10-22 11:21:48,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,498 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:48,523 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:48,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:48,766 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:48,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:48,798 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:48,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48 WrapperNode [2019-10-22 11:21:48,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:48,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:48,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:48,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:48,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:48,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:48,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:48,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:48,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... [2019-10-22 11:21:48,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:48,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:48,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:48,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:48,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/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 [2019-10-22 11:21:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:49,175 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:49,176 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:21:49,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:49 BoogieIcfgContainer [2019-10-22 11:21:49,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:49,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:49,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:49,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:49,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:48" (1/3) ... [2019-10-22 11:21:49,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6603999c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:49, skipping insertion in model container [2019-10-22 11:21:49,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:48" (2/3) ... [2019-10-22 11:21:49,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6603999c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:49, skipping insertion in model container [2019-10-22 11:21:49,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:49" (3/3) ... [2019-10-22 11:21:49,198 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.c [2019-10-22 11:21:49,221 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:49,229 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:49,261 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:49,318 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:49,319 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:49,319 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:49,319 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:49,319 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:49,319 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:49,319 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:49,320 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:49,343 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 11:21:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:21:49,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,352 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:21:49,354 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,361 INFO L82 PathProgramCache]: Analyzing trace with hash 963424, now seen corresponding path program 1 times [2019-10-22 11:21:49,372 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,373 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106395253] [2019-10-22 11:21:49,373 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,373 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:49,542 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106395253] [2019-10-22 11:21:49,543 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,544 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:49,545 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303656369] [2019-10-22 11:21:49,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:49,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:49,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:49,568 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2019-10-22 11:21:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,667 INFO L93 Difference]: Finished difference Result 65 states and 110 transitions. [2019-10-22 11:21:49,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:49,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-10-22 11:21:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,685 INFO L225 Difference]: With dead ends: 65 [2019-10-22 11:21:49,685 INFO L226 Difference]: Without dead ends: 35 [2019-10-22 11:21:49,691 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:49,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-22 11:21:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-10-22 11:21:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 11:21:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 51 transitions. [2019-10-22 11:21:49,731 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 51 transitions. Word has length 4 [2019-10-22 11:21:49,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,732 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 51 transitions. [2019-10-22 11:21:49,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2019-10-22 11:21:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:21:49,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,733 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:49,734 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,734 INFO L82 PathProgramCache]: Analyzing trace with hash -775387731, now seen corresponding path program 1 times [2019-10-22 11:21:49,734 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182843181] [2019-10-22 11:21:49,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:49,757 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182843181] [2019-10-22 11:21:49,758 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:49,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844840048] [2019-10-22 11:21:49,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:49,760 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:49,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:49,761 INFO L87 Difference]: Start difference. First operand 35 states and 51 transitions. Second operand 3 states. [2019-10-22 11:21:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,815 INFO L93 Difference]: Finished difference Result 83 states and 121 transitions. [2019-10-22 11:21:49,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:49,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:21:49,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,817 INFO L225 Difference]: With dead ends: 83 [2019-10-22 11:21:49,817 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 11:21:49,818 INFO L600 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 [2019-10-22 11:21:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 11:21:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2019-10-22 11:21:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 11:21:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2019-10-22 11:21:49,826 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 9 [2019-10-22 11:21:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,827 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2019-10-22 11:21:49,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2019-10-22 11:21:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:21:49,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,828 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:49,828 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,829 INFO L82 PathProgramCache]: Analyzing trace with hash -775328149, now seen corresponding path program 1 times [2019-10-22 11:21:49,829 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684396847] [2019-10-22 11:21:49,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:49,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684396847] [2019-10-22 11:21:49,857 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,857 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:49,857 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135652707] [2019-10-22 11:21:49,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:49,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:49,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:49,859 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand 3 states. [2019-10-22 11:21:49,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,908 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-10-22 11:21:49,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:49,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-10-22 11:21:49,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:49,910 INFO L225 Difference]: With dead ends: 89 [2019-10-22 11:21:49,910 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 11:21:49,911 INFO L600 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 [2019-10-22 11:21:49,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 11:21:49,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-22 11:21:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:21:49,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 89 transitions. [2019-10-22 11:21:49,921 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 89 transitions. Word has length 9 [2019-10-22 11:21:49,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:49,922 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 89 transitions. [2019-10-22 11:21:49,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2019-10-22 11:21:49,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:21:49,923 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:49,923 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:49,923 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:49,923 INFO L82 PathProgramCache]: Analyzing trace with hash -966830088, now seen corresponding path program 1 times [2019-10-22 11:21:49,924 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:49,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719486390] [2019-10-22 11:21:49,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:49,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:49,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719486390] [2019-10-22 11:21:49,949 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:49,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:49,949 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101461947] [2019-10-22 11:21:49,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:49,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:49,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:49,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:49,950 INFO L87 Difference]: Start difference. First operand 66 states and 89 transitions. Second operand 3 states. [2019-10-22 11:21:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:49,999 INFO L93 Difference]: Finished difference Result 133 states and 183 transitions. [2019-10-22 11:21:50,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:50,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-22 11:21:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,001 INFO L225 Difference]: With dead ends: 133 [2019-10-22 11:21:50,001 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 11:21:50,002 INFO L600 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 [2019-10-22 11:21:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 11:21:50,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2019-10-22 11:21:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:21:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2019-10-22 11:21:50,015 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 16 [2019-10-22 11:21:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,015 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2019-10-22 11:21:50,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2019-10-22 11:21:50,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:50,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,016 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:50,016 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,017 INFO L82 PathProgramCache]: Analyzing trace with hash -782905388, now seen corresponding path program 1 times [2019-10-22 11:21:50,017 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814435267] [2019-10-22 11:21:50,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 11:21:50,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814435267] [2019-10-22 11:21:50,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:50,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689513294] [2019-10-22 11:21:50,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:50,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:50,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:50,048 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 3 states. [2019-10-22 11:21:50,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,101 INFO L93 Difference]: Finished difference Result 177 states and 241 transitions. [2019-10-22 11:21:50,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:50,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:21:50,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,102 INFO L225 Difference]: With dead ends: 177 [2019-10-22 11:21:50,102 INFO L226 Difference]: Without dead ends: 72 [2019-10-22 11:21:50,103 INFO L600 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 [2019-10-22 11:21:50,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-22 11:21:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2019-10-22 11:21:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-10-22 11:21:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2019-10-22 11:21:50,113 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 19 [2019-10-22 11:21:50,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,113 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2019-10-22 11:21:50,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:50,113 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2019-10-22 11:21:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:50,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,114 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:50,114 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1830460977, now seen corresponding path program 1 times [2019-10-22 11:21:50,115 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687222037] [2019-10-22 11:21:50,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:50,151 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-22 11:21:50,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687222037] [2019-10-22 11:21:50,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:50,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:50,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253096575] [2019-10-22 11:21:50,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:50,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:50,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:50,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:50,153 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand 3 states. [2019-10-22 11:21:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:50,167 INFO L93 Difference]: Finished difference Result 120 states and 143 transitions. [2019-10-22 11:21:50,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:50,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-22 11:21:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:50,168 INFO L225 Difference]: With dead ends: 120 [2019-10-22 11:21:50,169 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:50,169 INFO L600 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 [2019-10-22 11:21:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:50,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:50,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-10-22 11:21:50,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:50,170 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:50,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:50,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:50,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:50,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:50,393 INFO L439 ceAbstractionStarter]: At program point L97(lines 9 141) the Hoare annotation is: false [2019-10-22 11:21:50,394 INFO L439 ceAbstractionStarter]: At program point L31(lines 30 125) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 11:21:50,394 INFO L443 ceAbstractionStarter]: For program point L93-1(lines 54 107) no Hoare annotation was computed. [2019-10-22 11:21:50,394 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 54 107) no Hoare annotation was computed. [2019-10-22 11:21:50,394 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-10-22 11:21:50,394 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2019-10-22 11:21:50,394 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:50,394 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point L78-1(lines 54 107) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L446 ceAbstractionStarter]: At program point L140(lines 9 141) the Hoare annotation is: true [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 74) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 128) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 54 107) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 109) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 111) no Hoare annotation was computed. [2019-10-22 11:21:50,395 INFO L446 ceAbstractionStarter]: At program point L137(lines 9 141) the Hoare annotation is: true [2019-10-22 11:21:50,396 INFO L439 ceAbstractionStarter]: At program point L100(lines 18 135) the Hoare annotation is: (or (<= ULTIMATE.start_main_~blastFlag~0 2) (and (<= ULTIMATE.start_main_~blastFlag~0 3) (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0)))) [2019-10-22 11:21:50,396 INFO L443 ceAbstractionStarter]: For program point L96(lines 96 98) no Hoare annotation was computed. [2019-10-22 11:21:50,396 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 125) no Hoare annotation was computed. [2019-10-22 11:21:50,396 INFO L439 ceAbstractionStarter]: At program point L26(lines 25 128) the Hoare annotation is: (<= ULTIMATE.start_main_~blastFlag~0 2) [2019-10-22 11:21:50,396 INFO L439 ceAbstractionStarter]: At program point L51(lines 50 109) the Hoare annotation is: (let ((.cse0 (<= 8656 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (<= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (<= ULTIMATE.start_main_~blastFlag~0 3) (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-10-22 11:21:50,396 INFO L439 ceAbstractionStarter]: At program point L47(lines 46 111) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and (<= ULTIMATE.start_main_~blastFlag~0 2) .cse0) (and (<= ULTIMATE.start_main_~blastFlag~0 3) .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0))))) [2019-10-22 11:21:50,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:50 BoogieIcfgContainer [2019-10-22 11:21:50,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:50,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:50,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:50,423 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:50,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:49" (3/4) ... [2019-10-22 11:21:50,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:50,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:50,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:21:50,496 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bab95aa4-d277-4d2b-8923-66f42c477608/bin/utaipan/witness.graphml [2019-10-22 11:21:50,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:50,499 INFO L168 Benchmark]: Toolchain (without parser) took 2023.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.0 GB in the end (delta: -74.6 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,500 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:50,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:50,501 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:50,501 INFO L168 Benchmark]: RCFGBuilder took 321.77 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,502 INFO L168 Benchmark]: TraceAbstraction took 1243.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,502 INFO L168 Benchmark]: Witness Printer took 74.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:50,504 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 321.77 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1243.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.6 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. * Witness Printer took 74.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8640 <= s__state) || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (8656 <= s__state && blastFlag <= 2) || ((8656 <= s__state && blastFlag <= 3) && !(s__hit == 0)) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: blastFlag <= 2 || ((blastFlag <= 3 && 8640 <= s__state) && !(s__hit == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 159 SDtfs, 93 SDslu, 84 SDs, 0 SdLazy, 95 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=4, 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, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 33 NumberOfFragments, 62 HoareAnnotationTreeSize, 8 FomulaSimplifications, 175 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 42/42 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...