./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5826109f3da002ef221ffbad3510db88b48ab8f7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:26,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:26,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:26,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:26,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:26,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:26,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:26,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:26,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:26,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:26,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:26,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:26,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:26,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:26,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:26,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:26,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:26,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:26,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:26,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:26,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:26,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:26,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:26,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:26,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:26,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:26,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:26,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:26,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:26,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:26,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:26,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:26,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:26,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:26,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:26,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:26,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:26,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:26,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:26,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:26,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:26,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:26,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:26,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:26,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:26,784 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:26,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:26,784 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:26,785 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:26,785 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:26,785 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:26,785 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:26,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:26,787 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:26,787 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:26,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:26,788 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:26,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:26,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:26,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:26,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:26,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:26,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:26,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:26,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:26,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:26,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:26,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:26,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:26,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:26,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:26,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:26,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:26,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:26,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:26,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:26,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:26,794 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:26,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:26,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:26,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:26,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:26,795 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5826109f3da002ef221ffbad3510db88b48ab8f7 [2020-11-28 07:38:27,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:27,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:27,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:27,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:27,081 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:27,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/../../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 07:38:27,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/data/437306991/741629c1a587420992287e7fb694ccb0/FLAG88440af5c [2020-11-28 07:38:27,546 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:27,546 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 07:38:27,556 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/data/437306991/741629c1a587420992287e7fb694ccb0/FLAG88440af5c [2020-11-28 07:38:27,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/data/437306991/741629c1a587420992287e7fb694ccb0 [2020-11-28 07:38:27,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:27,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:27,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:27,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:27,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:27,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:27" (1/1) ... [2020-11-28 07:38:27,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31243493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:27, skipping insertion in model container [2020-11-28 07:38:27,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:27" (1/1) ... [2020-11-28 07:38:27,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:27,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:28,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:28,194 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:28,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:28,245 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:28,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28 WrapperNode [2020-11-28 07:38:28,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:28,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:28,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:28,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:28,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:28,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:28,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:28,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:28,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... [2020-11-28 07:38:28,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:28,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:28,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:28,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:28,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/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 [2020-11-28 07:38:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:38:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:38:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:38:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-11-28 07:38:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:38:29,198 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:29,198 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:38:29,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:29 BoogieIcfgContainer [2020-11-28 07:38:29,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:29,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:29,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:29,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:29,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:27" (1/3) ... [2020-11-28 07:38:29,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25f108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:29, skipping insertion in model container [2020-11-28 07:38:29,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:28" (2/3) ... [2020-11-28 07:38:29,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25f108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:29, skipping insertion in model container [2020-11-28 07:38:29,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:29" (3/3) ... [2020-11-28 07:38:29,208 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2020-11-28 07:38:29,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:29,224 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:38:29,235 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:38:29,258 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:29,258 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:29,258 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:29,258 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:29,258 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:29,259 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:29,259 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:29,259 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-28 07:38:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 07:38:29,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:29,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:29,278 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:29,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:29,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1491113676, now seen corresponding path program 1 times [2020-11-28 07:38:29,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:29,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082894318] [2020-11-28 07:38:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:29,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082894318] [2020-11-28 07:38:29,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:29,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:38:29,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571890367] [2020-11-28 07:38:29,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:38:29,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:29,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:38:29,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:38:29,466 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2020-11-28 07:38:29,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:29,494 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2020-11-28 07:38:29,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:38:29,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-28 07:38:29,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:29,510 INFO L225 Difference]: With dead ends: 46 [2020-11-28 07:38:29,511 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 07:38:29,519 INFO L677 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 [2020-11-28 07:38:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 07:38:29,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 07:38:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 07:38:29,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-11-28 07:38:29,608 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-11-28 07:38:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:29,608 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-11-28 07:38:29,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:38:29,608 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-11-28 07:38:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 07:38:29,609 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:29,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:29,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:38:29,610 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:29,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:29,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1804189808, now seen corresponding path program 1 times [2020-11-28 07:38:29,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:29,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116017445] [2020-11-28 07:38:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:29,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116017445] [2020-11-28 07:38:29,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414680008] [2020-11-28 07:38:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:29,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:38:29,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:29,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:29,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1636698305] [2020-11-28 07:38:29,937 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2020-11-28 07:38:29,938 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:38:29,942 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:38:29,947 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:38:29,947 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:38:31,064 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:38:31,188 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2020-11-28 07:38:31,463 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:31,744 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-28 07:38:32,041 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-11-28 07:38:32,341 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2020-11-28 07:38:32,694 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2020-11-28 07:38:33,100 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 66 [2020-11-28 07:38:33,445 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-11-28 07:38:33,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:38:33,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [3, 3, 3] total 14 [2020-11-28 07:38:33,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385304942] [2020-11-28 07:38:33,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:38:33,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:33,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:38:33,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-11-28 07:38:33,450 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 10 states. [2020-11-28 07:38:33,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:33,669 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-11-28 07:38:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 07:38:33,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-28 07:38:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:33,670 INFO L225 Difference]: With dead ends: 48 [2020-11-28 07:38:33,670 INFO L226 Difference]: Without dead ends: 24 [2020-11-28 07:38:33,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-11-28 07:38:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-28 07:38:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-11-28 07:38:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-28 07:38:33,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-11-28 07:38:33,677 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2020-11-28 07:38:33,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:33,677 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-11-28 07:38:33,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:38:33,677 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-28 07:38:33,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 07:38:33,678 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:33,678 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:33,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 07:38:33,892 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2056090777, now seen corresponding path program 1 times [2020-11-28 07:38:33,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:33,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494669030] [2020-11-28 07:38:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 07:38:33,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494669030] [2020-11-28 07:38:33,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202807321] [2020-11-28 07:38:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:34,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:38:34,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 07:38:34,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 07:38:34,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [421328017] [2020-11-28 07:38:34,088 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-28 07:38:34,089 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:38:34,089 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:38:34,089 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:38:34,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:38:34,880 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:38:35,179 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:35,731 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-28 07:38:35,908 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-28 07:38:36,061 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-28 07:38:36,223 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-28 07:38:36,450 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-28 07:38:36,757 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-11-28 07:38:37,027 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-11-28 07:38:37,317 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-11-28 07:38:37,676 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-11-28 07:38:37,934 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-11-28 07:38:38,213 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-11-28 07:38:38,718 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2020-11-28 07:38:39,284 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2020-11-28 07:38:39,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:38:39,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [3, 3, 3] total 21 [2020-11-28 07:38:39,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544726196] [2020-11-28 07:38:39,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-28 07:38:39,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:39,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-28 07:38:39,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-11-28 07:38:39,288 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 17 states. [2020-11-28 07:38:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:39,528 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-28 07:38:39,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 07:38:39,528 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 21 [2020-11-28 07:38:39,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:39,529 INFO L225 Difference]: With dead ends: 40 [2020-11-28 07:38:39,530 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 07:38:39,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-11-28 07:38:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 07:38:39,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-11-28 07:38:39,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 07:38:39,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-11-28 07:38:39,537 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 21 [2020-11-28 07:38:39,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:39,538 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-11-28 07:38:39,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-28 07:38:39,538 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-11-28 07:38:39,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 07:38:39,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:39,539 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:39,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-11-28 07:38:39,768 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:39,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1845042433, now seen corresponding path program 1 times [2020-11-28 07:38:39,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:39,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293836571] [2020-11-28 07:38:39,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:39,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 07:38:39,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293836571] [2020-11-28 07:38:39,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927548460] [2020-11-28 07:38:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:39,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:38:39,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 07:38:39,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 07:38:40,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1884063614] [2020-11-28 07:38:40,013 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-28 07:38:40,013 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:38:40,014 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:38:40,014 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:38:40,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:38:40,925 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:38:41,200 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:41,713 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-28 07:38:41,874 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-28 07:38:42,023 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-28 07:38:42,172 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-28 07:38:42,356 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-28 07:38:42,595 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-11-28 07:38:42,799 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2020-11-28 07:38:42,935 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-11-28 07:38:43,121 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-11-28 07:38:43,328 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2020-11-28 07:38:43,801 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-11-28 07:38:43,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:38:43,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [3, 3, 3] total 19 [2020-11-28 07:38:43,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226041566] [2020-11-28 07:38:43,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-28 07:38:43,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:43,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-28 07:38:43,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-11-28 07:38:43,804 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 15 states. [2020-11-28 07:38:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:44,015 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2020-11-28 07:38:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-28 07:38:44,015 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-11-28 07:38:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:44,016 INFO L225 Difference]: With dead ends: 49 [2020-11-28 07:38:44,017 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 07:38:44,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-11-28 07:38:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 07:38:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-11-28 07:38:44,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 07:38:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-11-28 07:38:44,025 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 23 [2020-11-28 07:38:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:44,025 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-11-28 07:38:44,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-28 07:38:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-11-28 07:38:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 07:38:44,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:44,027 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:44,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:44,248 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:44,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1694810672, now seen corresponding path program 1 times [2020-11-28 07:38:44,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:44,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886644935] [2020-11-28 07:38:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 07:38:44,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886644935] [2020-11-28 07:38:44,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273225147] [2020-11-28 07:38:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:44,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:38:44,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 07:38:44,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 07:38:44,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1001389200] [2020-11-28 07:38:44,484 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-28 07:38:44,484 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:38:44,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:38:44,485 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:38:44,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:38:45,124 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:38:45,343 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:45,730 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-28 07:38:45,923 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-28 07:38:46,152 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-28 07:38:46,336 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-28 07:38:46,583 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:46,751 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-28 07:38:46,928 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-11-28 07:38:47,199 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-11-28 07:38:47,392 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2020-11-28 07:38:47,724 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-11-28 07:38:48,056 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-11-28 07:38:48,606 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2020-11-28 07:38:48,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:38:48,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [3, 3, 3] total 20 [2020-11-28 07:38:48,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808564032] [2020-11-28 07:38:48,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-28 07:38:48,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:48,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-28 07:38:48,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2020-11-28 07:38:48,609 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 16 states. [2020-11-28 07:38:48,814 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-28 07:38:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:49,010 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2020-11-28 07:38:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-28 07:38:49,010 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 23 [2020-11-28 07:38:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:49,011 INFO L225 Difference]: With dead ends: 55 [2020-11-28 07:38:49,011 INFO L226 Difference]: Without dead ends: 52 [2020-11-28 07:38:49,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-11-28 07:38:49,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-28 07:38:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2020-11-28 07:38:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-28 07:38:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-11-28 07:38:49,021 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 23 [2020-11-28 07:38:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:49,021 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-11-28 07:38:49,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-28 07:38:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-11-28 07:38:49,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:38:49,022 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:49,023 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:38:49,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:49,240 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:49,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1311193718, now seen corresponding path program 1 times [2020-11-28 07:38:49,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:49,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90648816] [2020-11-28 07:38:49,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 07:38:49,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90648816] [2020-11-28 07:38:49,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131452061] [2020-11-28 07:38:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:49,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:38:49,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 07:38:49,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 07:38:49,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [80176633] [2020-11-28 07:38:49,382 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-11-28 07:38:49,382 INFO L166 IcfgInterpreter]: Building call graph [2020-11-28 07:38:49,383 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-28 07:38:49,383 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-28 07:38:49,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-28 07:38:50,145 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-28 07:38:50,350 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:50,752 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2020-11-28 07:38:50,886 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2020-11-28 07:38:51,034 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2020-11-28 07:38:51,185 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2020-11-28 07:38:51,471 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-28 07:38:51,611 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2020-11-28 07:38:51,741 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-11-28 07:38:51,899 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2020-11-28 07:38:52,062 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2020-11-28 07:38:52,358 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-11-28 07:38:52,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-11-28 07:38:52,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [3, 3, 3] total 18 [2020-11-28 07:38:52,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052383402] [2020-11-28 07:38:52,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-28 07:38:52,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:38:52,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-28 07:38:52,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2020-11-28 07:38:52,362 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 14 states. [2020-11-28 07:38:52,641 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-11-28 07:38:52,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:52,788 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-11-28 07:38:52,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 07:38:52,789 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-11-28 07:38:52,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:52,789 INFO L225 Difference]: With dead ends: 41 [2020-11-28 07:38:52,789 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:38:52,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-11-28 07:38:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:38:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:38:52,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:38:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:38:52,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-11-28 07:38:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:52,791 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:38:52,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-28 07:38:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:38:52,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:38:52,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:38:52,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:38:53,479 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-11-28 07:38:53,798 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 87 [2020-11-28 07:38:53,961 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 56 [2020-11-28 07:38:54,099 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 43 [2020-11-28 07:38:54,297 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-11-28 07:38:54,299 INFO L277 CegarLoopResult]: At program point L85(lines 58 86) the Hoare annotation is: true [2020-11-28 07:38:54,300 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:38:54,300 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 07:38:54,300 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 07:38:54,300 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-28 07:38:54,300 INFO L274 CegarLoopResult]: For program point L70-6(line 70) no Hoare annotation was computed. [2020-11-28 07:38:54,300 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-28 07:38:54,300 INFO L270 CegarLoopResult]: At program point L70-8(line 70) the Hoare annotation is: (and (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= |#t~string1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (<= 8 ULTIMATE.start_main_~i~1) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-28 07:38:54,301 INFO L274 CegarLoopResult]: For program point L70-9(line 70) no Hoare annotation was computed. [2020-11-28 07:38:54,301 INFO L274 CegarLoopResult]: For program point L71-4(lines 65 83) no Hoare annotation was computed. [2020-11-28 07:38:54,301 INFO L274 CegarLoopResult]: For program point L63-2(lines 63 84) no Hoare annotation was computed. [2020-11-28 07:38:54,301 INFO L270 CegarLoopResult]: At program point L63-4(lines 63 84) the Hoare annotation is: (let ((.cse0 (= |#t~string1.offset| 0)) (.cse1 (<= 0 |#t~string0.base|)) (.cse3 (= |#NULL.base| 0)) (.cse4 (<= 0 |#t~string1.base|)) (.cse5 (= |ULTIMATE.start_main_~#A~0.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~#A~0.base|)) (.cse7 (<= 8 ULTIMATE.start_main_~i~1)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (= |#t~string0.offset| 0)) (.cse10 (<= 0 |#StackHeapBarrier|))) (or (and .cse0 .cse1 (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (let ((.cse2 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse2 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse2 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) .cse3 (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) .cse7 .cse8 (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) .cse9 .cse10) (and .cse0 .cse1 (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0.base|) (+ |ULTIMATE.start_main_~#A~0.offset| 8)) 0) (= |ULTIMATE.start_parse_expression_list_#in~str.offset| |ULTIMATE.start_main_~#A~0.offset|) .cse3 (= (select |#length| |ULTIMATE.start_parse_expression_list_~#str2~0.base|) 2) (= ULTIMATE.start_parse_expression_list_~str.offset |ULTIMATE.start_parse_expression_list_#in~str.offset|) (= |ULTIMATE.start_parse_expression_list_#in~str.base| |ULTIMATE.start_main_~#A~0.base|) (not (= ULTIMATE.start_parse_expression_list_~str.base 0)) (= ULTIMATE.start_parse_expression_list_~start~0 0) (= ULTIMATE.start_parse_expression_list_~str.base |ULTIMATE.start_parse_expression_list_#in~str.base|) (= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) .cse4 .cse5 (= (+ ULTIMATE.start_parse_expression_list_~i~0 1) 0) .cse6 (< |#StackHeapBarrier| |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= (+ ULTIMATE.start_parse_expression_list_~j~0 1) 0) .cse7 (= (select |#valid| |ULTIMATE.start_parse_expression_list_~#str2~0.base|) 1) .cse8 .cse9 .cse10))) [2020-11-28 07:38:54,301 INFO L274 CegarLoopResult]: For program point L63-5(lines 63 84) no Hoare annotation was computed. [2020-11-28 07:38:54,302 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-28 07:38:54,302 INFO L270 CegarLoopResult]: At program point L15-2(lines 14 19) the Hoare annotation is: (let ((.cse1 (< ULTIMATE.start_parse_expression_list_~j~0 (+ ULTIMATE.start_parse_expression_list_~start~0 1)))) (and (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_r_strncpy_~dest.offset |ULTIMATE.start_r_strncpy_#in~dest.offset|) (let ((.cse0 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) .cse1 (<= ULTIMATE.start_parse_expression_list_~start~0 ULTIMATE.start_parse_expression_list_~j~0) (= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| |ULTIMATE.start_r_strncpy_#in~dest.offset|) (= (+ ULTIMATE.start_parse_expression_list_~start~0 |ULTIMATE.start_r_strncpy_#in~n|) (+ ULTIMATE.start_parse_expression_list_~j~0 1)) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (= (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~start~0) |ULTIMATE.start_r_strncpy_#in~src.offset|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (= ULTIMATE.start_parse_expression_list_~str.base |ULTIMATE.start_r_strncpy_#in~src.base|) (<= 8 ULTIMATE.start_main_~i~1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (= (ite .cse1 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (<= 0 |#StackHeapBarrier|) (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (= ULTIMATE.start_r_strncpy_~src.offset |ULTIMATE.start_r_strncpy_#in~src.offset|) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 |#t~string1.base|) (= ULTIMATE.start_r_strncpy_~dest.base |ULTIMATE.start_r_strncpy_#in~dest.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (= ULTIMATE.start_r_strncpy_~n |ULTIMATE.start_r_strncpy_#in~n|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (= ULTIMATE.start_r_strncpy_~src.base |ULTIMATE.start_r_strncpy_#in~src.base|) (= |ULTIMATE.start_parse_expression_list_~#str2~0.base| |ULTIMATE.start_r_strncpy_#in~dest.base|) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (= |#t~string0.offset| 0))) [2020-11-28 07:38:54,302 INFO L270 CegarLoopResult]: At program point L73(lines 73 75) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (let ((.cse0 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= ULTIMATE.start_parse_expression_list_~start~0 ULTIMATE.start_parse_expression_list_~j~0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (<= 8 ULTIMATE.start_main_~i~1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-28 07:38:54,303 INFO L274 CegarLoopResult]: For program point L65(lines 65 83) no Hoare annotation was computed. [2020-11-28 07:38:54,303 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 07:38:54,303 INFO L270 CegarLoopResult]: At program point L90-3(lines 90 92) the Hoare annotation is: (and (<= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (= |#NULL.base| 0) (<= 0 |#t~string1.offset|) (= |#NULL.offset| 0) (<= 0 ULTIMATE.start_main_~i~1) (= |#t~string0.offset| 0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-28 07:38:54,303 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-11-28 07:38:54,303 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:38:54,307 INFO L274 CegarLoopResult]: For program point L67-3(line 67) no Hoare annotation was computed. [2020-11-28 07:38:54,307 INFO L270 CegarLoopResult]: At program point L67-5(line 67) the Hoare annotation is: (and (= |#t~string1.offset| 0) (<= 0 |#t~string0.base|) (<= 0 ULTIMATE.start_parse_expression_list_~str.offset) (<= 0 ULTIMATE.start_parse_expression_list_~str.base) (let ((.cse0 (select |#memory_int| ULTIMATE.start_parse_expression_list_~str.base))) (or (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0 1))) (not (= 34 (select .cse0 (+ ULTIMATE.start_parse_expression_list_~str.offset ULTIMATE.start_parse_expression_list_~j~0)))) (<= ULTIMATE.start_parse_expression_list_~j~0 0))) (<= ULTIMATE.start_parse_expression_list_~str.offset 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.offset|) (<= |ULTIMATE.start_parse_expression_list_~#str2~0.offset| 0) (<= 0 ULTIMATE.start_parse_expression_list_~i~0) (<= 0 |#t~string1.base|) (= |ULTIMATE.start_main_~#A~0.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0.base|) (<= 0 |ULTIMATE.start_parse_expression_list_#in~str.base|) (<= 0 ULTIMATE.start_parse_expression_list_~start~0) (<= |ULTIMATE.start_parse_expression_list_#in~str.offset| 0) (<= 8 ULTIMATE.start_main_~i~1) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.offset|) (<= 0 |ULTIMATE.start_parse_expression_list_~#str2~0.base|) (= |#t~string0.offset| 0) (<= 0 |#StackHeapBarrier|)) [2020-11-28 07:38:54,307 INFO L274 CegarLoopResult]: For program point L67-6(line 67) no Hoare annotation was computed. [2020-11-28 07:38:54,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:38:54,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,343 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:38:54,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,356 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,365 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,365 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,367 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,378 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,379 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:54 BoogieIcfgContainer [2020-11-28 07:38:54,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:54,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:54,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:54,386 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:54,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:29" (3/4) ... [2020-11-28 07:38:54,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:38:54,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-11-28 07:38:54,408 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 07:38:54,408 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:38:54,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:54,446 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((((((((((0 <= str && \old(cond) == cond) && dest == dest) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && j < start + 1) && start <= j) && str2 == dest) && start + \old(n) == j + 1) && 0 <= i) && 0 <= A) && str + start == src) && 0 <= start) && str == src) && 8 <= i) && #NULL == 0) && 0 <= str2) && (if j < start + 1 then 1 else 0) == \old(cond)) && 0 <= str2) && 0 <= unknown-#StackHeapBarrier-unknown) && "veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0) && 0 <= "0") && src == src) && 0 <= str) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && dest == dest) && A == 0) && n == \old(n)) && 0 <= str) && src == src) && str2 == dest) && str <= 0) && "0" == 0 [2020-11-28 07:38:54,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c4ba9322-fedb-4a16-89f4-1ac18d20be5f/bin/utaipan/witness.graphml [2020-11-28 07:38:54,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:54,488 INFO L168 Benchmark]: Toolchain (without parser) took 26544.16 ms. Allocated memory was 94.4 MB in the beginning and 207.6 MB in the end (delta: 113.2 MB). Free memory was 65.2 MB in the beginning and 64.9 MB in the end (delta: 221.4 kB). Peak memory consumption was 113.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,488 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:54,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.37 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 67.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.97 ms. Allocated memory is still 94.4 MB. Free memory was 67.6 MB in the beginning and 65.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,490 INFO L168 Benchmark]: Boogie Preprocessor took 56.74 ms. Allocated memory is still 94.4 MB. Free memory was 65.9 MB in the beginning and 64.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,490 INFO L168 Benchmark]: RCFGBuilder took 851.38 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.4 MB in the beginning and 73.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,491 INFO L168 Benchmark]: TraceAbstraction took 25183.59 ms. Allocated memory was 113.2 MB in the beginning and 207.6 MB in the end (delta: 94.4 MB). Free memory was 73.4 MB in the beginning and 70.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 108.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,492 INFO L168 Benchmark]: Witness Printer took 100.94 ms. Allocated memory is still 207.6 MB. Free memory was 70.2 MB in the beginning and 64.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:54,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 53.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.37 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 67.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.97 ms. Allocated memory is still 94.4 MB. Free memory was 67.6 MB in the beginning and 65.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.74 ms. Allocated memory is still 94.4 MB. Free memory was 65.9 MB in the beginning and 64.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 851.38 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.4 MB in the beginning and 73.4 MB in the end (delta: -9.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25183.59 ms. Allocated memory was 113.2 MB in the beginning and 207.6 MB in the end (delta: 94.4 MB). Free memory was 73.4 MB in the beginning and 70.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 108.0 MB. Max. memory is 16.1 GB. * Witness Printer took 100.94 ms. Allocated memory is still 207.6 MB. Free memory was 70.2 MB in the beginning and 64.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant [2020-11-28 07:38:54,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:38:54,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 07:38:54,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && 0 <= str) && 0 <= str) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && unknown-#memory_int-unknown[A][A + 8] == 0) && str == A) && #NULL == 0) && unknown-#length-unknown[str2] == 2) && str == str) && str == A) && !(str == 0)) && start == 0) && str == str) && str2 == 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && i + 1 == 0) && 0 <= A) && unknown-#StackHeapBarrier-unknown < str2) && j + 1 == 0) && 8 <= i) && \valid[str2] == 1) && #NULL == 0) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 90]: Loop Invariant [2020-11-28 07:38:54,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" <= 0 && 0 <= "0") && 0 <= A) && #NULL == 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && #NULL == 0) && 0 <= i) && "0" == 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 14]: Loop Invariant [2020-11-28 07:38:54,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((((((((((((((((((((((((((((((((0 <= str && \old(cond) == cond) && dest == dest) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && j < start + 1) && start <= j) && str2 == dest) && start + \old(n) == j + 1) && 0 <= i) && 0 <= A) && str + start == src) && 0 <= start) && str == src) && 8 <= i) && #NULL == 0) && 0 <= str2) && (if j < start + 1 then 1 else 0) == \old(cond)) && 0 <= str2) && 0 <= unknown-#StackHeapBarrier-unknown) && "veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0) && 0 <= "0") && src == src) && 0 <= str) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && dest == dest) && A == 0) && n == \old(n)) && 0 <= str) && src == src) && str2 == dest) && str <= 0) && "0" == 0 - InvariantResult [Line: 67]: Loop Invariant [2020-11-28 07:38:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,546 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: (((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && 0 <= str) && 0 <= str) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 70]: Loop Invariant [2020-11-28 07:38:54,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,547 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,548 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((((((((((((((0 <= "0" && 0 <= str) && 0 <= str) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && "veris.c_OpenSER_cases1_stripFullBoth_arr.c" <= 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 73]: Loop Invariant [2020-11-28 07:38:54,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 07:38:54,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 07:38:54,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-28 07:38:54,554 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((((((((((((((((((("veris.c_OpenSER_cases1_stripFullBoth_arr.c" == 0 && 0 <= "0") && 0 <= str) && 0 <= str) && ((34 == unknown-#memory_int-unknown[str][str + j + 1] || !(34 == unknown-#memory_int-unknown[str][str + j])) || j <= 0)) && str <= 0) && #NULL == 0) && 0 <= str) && str2 <= 0) && start <= j) && 0 <= i) && 0 <= "veris.c_OpenSER_cases1_stripFullBoth_arr.c") && A == 0) && 0 <= A) && 0 <= str) && 0 <= start) && str <= 0) && 8 <= i) && #NULL == 0) && 0 <= str2) && 0 <= str2) && "0" == 0) && 0 <= unknown-#StackHeapBarrier-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.7s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 237 SDslu, 164 SDs, 0 SdLazy, 553 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=5, 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, 23 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 23 NumberOfFragments, 600 HoareAnnotationTreeSize, 7 FomulaSimplifications, 3414 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 771 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 8043 SizeOfPredicates, 5 NumberOfNonLiveVariables, 630 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 48/63 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 4235, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 81, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 151, TOOLS_POST_TIME[ms]: 2117, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 151, TOOLS_QUANTIFIERELIM_TIME[ms]: 2070, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 230, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 311, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 8, DOMAIN_JOIN_TIME[ms]: 390, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 164, DOMAIN_WIDEN_APPLICATIONS: 20, DOMAIN_WIDEN_TIME[ms]: 1054, DOMAIN_ISSUBSETEQ_APPLICATIONS: 33, DOMAIN_ISSUBSETEQ_TIME[ms]: 148, DOMAIN_ISBOTTOM_APPLICATIONS: 81, DOMAIN_ISBOTTOM_TIME[ms]: 228, LOOP_SUMMARIZER_APPLICATIONS: 13, LOOP_SUMMARIZER_CACHE_MISSES: 13, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 2202, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2202, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 33, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 9, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 50, DAG_COMPRESSION_PROCESSED_NODES: 1182, DAG_COMPRESSION_RETAINED_NODES: 264, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...