./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f00fa7f90af487ebbfd04394bf815b5a9b100931 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:34:16,910 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:34:16,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:34:16,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:34:16,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:34:16,920 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:34:16,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:34:16,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:34:16,923 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:34:16,924 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:34:16,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:34:16,925 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:34:16,925 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:34:16,926 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:34:16,927 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:34:16,927 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:34:16,928 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:34:16,929 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:34:16,931 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:34:16,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:34:16,932 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:34:16,933 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:34:16,935 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:34:16,935 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:34:16,935 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:34:16,936 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:34:16,936 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:34:16,937 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:34:16,937 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:34:16,938 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:34:16,938 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:34:16,939 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:34:16,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:34:16,939 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:34:16,940 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:34:16,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:34:16,940 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:34:16,950 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:34:16,950 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:34:16,951 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:34:16,951 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:34:16,951 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:34:16,952 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:34:16,952 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:34:16,952 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:34:16,952 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:34:16,952 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:34:16,952 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:34:16,952 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:34:16,953 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:34:16,953 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:34:16,953 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:34:16,953 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:34:16,954 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:34:16,955 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:34:16,955 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:34:16,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:34:16,955 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:34:16,955 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:34:16,955 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:34:16,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:34:16,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:34:16,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:34:16,956 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:34:16,956 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:34:16,956 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:34:16,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:34:16,957 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:34:16,957 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f00fa7f90af487ebbfd04394bf815b5a9b100931 [2018-11-22 21:34:16,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:34:16,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:34:16,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:34:16,994 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:34:16,994 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:34:16,995 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-11-22 21:34:17,039 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/data/6718e4a22/96c6aa872f0f4ce9804e2f59c9aed710/FLAG06d98d9c2 [2018-11-22 21:34:17,488 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:34:17,488 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/sv-benchmarks/c/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-11-22 21:34:17,498 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/data/6718e4a22/96c6aa872f0f4ce9804e2f59c9aed710/FLAG06d98d9c2 [2018-11-22 21:34:17,510 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/data/6718e4a22/96c6aa872f0f4ce9804e2f59c9aed710 [2018-11-22 21:34:17,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:34:17,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:34:17,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:34:17,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:34:17,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:34:17,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f375ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17, skipping insertion in model container [2018-11-22 21:34:17,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:34:17,563 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:34:17,790 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:34:17,793 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:34:17,862 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:34:17,874 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:34:17,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17 WrapperNode [2018-11-22 21:34:17,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:34:17,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:34:17,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:34:17,875 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:34:17,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:34:17,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:34:17,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:34:17,951 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:34:17,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:17,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... [2018-11-22 21:34:18,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:34:18,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:34:18,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:34:18,004 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:34:18,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/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 [2018-11-22 21:34:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-22 21:34:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:34:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:34:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-22 21:34:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-22 21:34:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:34:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:34:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:34:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:34:19,048 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:34:19,048 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-22 21:34:19,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:19 BoogieIcfgContainer [2018-11-22 21:34:19,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:34:19,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:34:19,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:34:19,052 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:34:19,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:17" (1/3) ... [2018-11-22 21:34:19,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa3c71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:19, skipping insertion in model container [2018-11-22 21:34:19,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:17" (2/3) ... [2018-11-22 21:34:19,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa3c71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:19, skipping insertion in model container [2018-11-22 21:34:19,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:19" (3/3) ... [2018-11-22 21:34:19,055 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label07_true-unreach-call.c [2018-11-22 21:34:19,063 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:34:19,070 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:34:19,082 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:34:19,104 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:34:19,104 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:34:19,104 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:34:19,105 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:34:19,105 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:34:19,105 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:34:19,105 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:34:19,105 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:34:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-11-22 21:34:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-22 21:34:19,130 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:34:19,131 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:34:19,132 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:34:19,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:19,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1452048058, now seen corresponding path program 1 times [2018-11-22 21:34:19,139 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:34:19,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:19,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:19,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:19,182 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:34:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:19,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:34:19,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:34:19,376 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:34:19,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:34:19,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:34:19,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:34:19,395 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2018-11-22 21:34:20,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:34:20,097 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2018-11-22 21:34:20,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:34:20,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-11-22 21:34:20,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:34:20,114 INFO L225 Difference]: With dead ends: 571 [2018-11-22 21:34:20,114 INFO L226 Difference]: Without dead ends: 354 [2018-11-22 21:34:20,119 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:34:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-11-22 21:34:20,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2018-11-22 21:34:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-11-22 21:34:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 610 transitions. [2018-11-22 21:34:20,168 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 610 transitions. Word has length 51 [2018-11-22 21:34:20,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:34:20,168 INFO L480 AbstractCegarLoop]: Abstraction has 354 states and 610 transitions. [2018-11-22 21:34:20,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:34:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 610 transitions. [2018-11-22 21:34:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-22 21:34:20,173 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:34:20,173 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:34:20,174 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:34:20,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:20,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1838295646, now seen corresponding path program 1 times [2018-11-22 21:34:20,174 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:34:20,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:20,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:20,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:20,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:34:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-22 21:34:20,310 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:34:20,310 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:34:20,311 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-11-22 21:34:20,312 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-22 21:34:20,340 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:34:20,341 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:34:20,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 21:34:20,752 INFO L272 AbstractInterpreter]: Visited 77 different actions 218 times. Merged at 4 different actions 7 times. Never widened. Performed 1951 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1951 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-22 21:34:20,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:20,766 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 21:34:20,938 INFO L227 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 76.16% of their original sizes. [2018-11-22 21:34:20,938 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 21:34:20,987 INFO L415 sIntCurrentIteration]: We unified 120 AI predicates to 120 [2018-11-22 21:34:20,987 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 21:34:20,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:34:20,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-22 21:34:20,988 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:34:20,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 21:34:20,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 21:34:20,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:34:20,989 INFO L87 Difference]: Start difference. First operand 354 states and 610 transitions. Second operand 10 states. [2018-11-22 21:34:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:34:54,101 INFO L93 Difference]: Finished difference Result 1225 states and 2205 transitions. [2018-11-22 21:34:54,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-22 21:34:54,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2018-11-22 21:34:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:34:54,106 INFO L225 Difference]: With dead ends: 1225 [2018-11-22 21:34:54,106 INFO L226 Difference]: Without dead ends: 877 [2018-11-22 21:34:54,108 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-22 21:34:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2018-11-22 21:34:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 866. [2018-11-22 21:34:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2018-11-22 21:34:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1214 transitions. [2018-11-22 21:34:54,140 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1214 transitions. Word has length 121 [2018-11-22 21:34:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:34:54,141 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 1214 transitions. [2018-11-22 21:34:54,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 21:34:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1214 transitions. [2018-11-22 21:34:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-11-22 21:34:54,147 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:34:54,147 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:34:54,147 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:34:54,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:54,148 INFO L82 PathProgramCache]: Analyzing trace with hash 18810810, now seen corresponding path program 1 times [2018-11-22 21:34:54,148 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:34:54,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:54,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:54,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:54,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:34:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:54,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:34:54,300 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:34:54,300 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-11-22 21:34:54,300 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [534], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-22 21:34:54,303 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:34:54,303 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:34:54,389 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:34:54,389 INFO L272 AbstractInterpreter]: Visited 88 different actions 173 times. Merged at 6 different actions 8 times. Never widened. Performed 1627 root evaluator evaluations with a maximum evaluation depth of 15. Performed 1627 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-22 21:34:54,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:54,391 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:34:54,391 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:34:54,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 21:34:54,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:54,416 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:34:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:54,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:34:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:54,539 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:34:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:54,623 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 21:34:54,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-22 21:34:54,623 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 21:34:54,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 21:34:54,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 21:34:54,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-22 21:34:54,624 INFO L87 Difference]: Start difference. First operand 866 states and 1214 transitions. Second operand 9 states. [2018-11-22 21:34:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:34:56,050 INFO L93 Difference]: Finished difference Result 2255 states and 3638 transitions. [2018-11-22 21:34:56,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-22 21:34:56,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2018-11-22 21:34:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:34:56,061 INFO L225 Difference]: With dead ends: 2255 [2018-11-22 21:34:56,061 INFO L226 Difference]: Without dead ends: 1013 [2018-11-22 21:34:56,072 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 409 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2018-11-22 21:34:56,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2018-11-22 21:34:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 993. [2018-11-22 21:34:56,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2018-11-22 21:34:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1193 transitions. [2018-11-22 21:34:56,101 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1193 transitions. Word has length 203 [2018-11-22 21:34:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:34:56,102 INFO L480 AbstractCegarLoop]: Abstraction has 993 states and 1193 transitions. [2018-11-22 21:34:56,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 21:34:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1193 transitions. [2018-11-22 21:34:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-11-22 21:34:56,106 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:34:56,107 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:34:56,107 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:34:56,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:56,107 INFO L82 PathProgramCache]: Analyzing trace with hash 745127045, now seen corresponding path program 1 times [2018-11-22 21:34:56,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:34:56,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:56,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:56,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:56,108 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:34:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:56,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:34:56,279 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:34:56,280 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-11-22 21:34:56,280 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-22 21:34:56,283 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:34:56,284 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:34:56,489 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:34:56,489 INFO L272 AbstractInterpreter]: Visited 124 different actions 362 times. Merged at 6 different actions 12 times. Never widened. Performed 3793 root evaluator evaluations with a maximum evaluation depth of 13. Performed 3793 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-22 21:34:56,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:56,495 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:34:56,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:34:56,495 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 21:34:56,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:56,501 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:34:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:56,552 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:34:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:56,632 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:34:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:34:56,724 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 21:34:56,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-22 21:34:56,724 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 21:34:56,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 21:34:56,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 21:34:56,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-22 21:34:56,725 INFO L87 Difference]: Start difference. First operand 993 states and 1193 transitions. Second operand 9 states. [2018-11-22 21:34:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:34:57,453 INFO L93 Difference]: Finished difference Result 2505 states and 3341 transitions. [2018-11-22 21:34:57,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-22 21:34:57,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 264 [2018-11-22 21:34:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:34:57,462 INFO L225 Difference]: With dead ends: 2505 [2018-11-22 21:34:57,462 INFO L226 Difference]: Without dead ends: 1661 [2018-11-22 21:34:57,466 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 525 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2018-11-22 21:34:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2018-11-22 21:34:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1615. [2018-11-22 21:34:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1615 states. [2018-11-22 21:34:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2024 transitions. [2018-11-22 21:34:57,517 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2024 transitions. Word has length 264 [2018-11-22 21:34:57,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:34:57,517 INFO L480 AbstractCegarLoop]: Abstraction has 1615 states and 2024 transitions. [2018-11-22 21:34:57,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 21:34:57,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2024 transitions. [2018-11-22 21:34:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-22 21:34:57,523 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:34:57,523 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:34:57,523 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:34:57,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:57,523 INFO L82 PathProgramCache]: Analyzing trace with hash -131590639, now seen corresponding path program 1 times [2018-11-22 21:34:57,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:34:57,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:57,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:34:57,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:34:57,525 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:34:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:34:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 89 proven. 46 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-22 21:34:57,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:34:57,746 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:34:57,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-11-22 21:34:57,746 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [698], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-11-22 21:34:57,749 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:34:57,749 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:34:57,913 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 21:34:57,914 INFO L272 AbstractInterpreter]: Visited 128 different actions 250 times. Merged at 4 different actions 4 times. Never widened. Performed 2601 root evaluator evaluations with a maximum evaluation depth of 15. Performed 2601 inverse root evaluator evaluations with a maximum inverse evaluation depth of 15. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-22 21:34:57,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:34:57,918 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 21:34:58,110 INFO L227 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 78.2% of their original sizes. [2018-11-22 21:34:58,111 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 21:34:58,138 INFO L415 sIntCurrentIteration]: We unified 285 AI predicates to 285 [2018-11-22 21:34:58,138 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 21:34:58,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:34:58,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-22 21:34:58,138 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:34:58,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 21:34:58,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 21:34:58,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:34:58,139 INFO L87 Difference]: Start difference. First operand 1615 states and 2024 transitions. Second operand 10 states. [2018-11-22 21:35:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:35:09,043 INFO L93 Difference]: Finished difference Result 3003 states and 3678 transitions. [2018-11-22 21:35:09,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-22 21:35:09,043 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 286 [2018-11-22 21:35:09,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:35:09,049 INFO L225 Difference]: With dead ends: 3003 [2018-11-22 21:35:09,049 INFO L226 Difference]: Without dead ends: 1557 [2018-11-22 21:35:09,052 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 296 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-22 21:35:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2018-11-22 21:35:09,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1511. [2018-11-22 21:35:09,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1511 states. [2018-11-22 21:35:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1733 transitions. [2018-11-22 21:35:09,086 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1733 transitions. Word has length 286 [2018-11-22 21:35:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:35:09,087 INFO L480 AbstractCegarLoop]: Abstraction has 1511 states and 1733 transitions. [2018-11-22 21:35:09,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 21:35:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1733 transitions. [2018-11-22 21:35:09,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-11-22 21:35:09,093 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:35:09,093 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:35:09,093 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:35:09,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:35:09,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1791726542, now seen corresponding path program 1 times [2018-11-22 21:35:09,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:35:09,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:35:09,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:35:09,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:35:09,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:35:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:35:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-22 21:35:09,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:35:09,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:35:09,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:35:09,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:35:09,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:35:09,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:35:09,248 INFO L87 Difference]: Start difference. First operand 1511 states and 1733 transitions. Second operand 4 states. [2018-11-22 21:35:09,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:35:09,649 INFO L93 Difference]: Finished difference Result 1658 states and 1889 transitions. [2018-11-22 21:35:09,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:35:09,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 341 [2018-11-22 21:35:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:35:09,651 INFO L225 Difference]: With dead ends: 1658 [2018-11-22 21:35:09,651 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:35:09,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:35:09,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:35:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:35:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:35:09,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:35:09,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 341 [2018-11-22 21:35:09,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:35:09,654 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:35:09,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:35:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:35:09,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:35:09,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 21:35:09,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:09,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:09,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:09,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:09,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:09,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:09,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:35:10,062 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:35:10,150 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= |old(~a10~0)| ~a10~0)) [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,150 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-22 21:35:10,151 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-11-22 21:35:10,152 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-22 21:35:10,153 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-22 21:35:10,154 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-11-22 21:35:10,155 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-11-22 21:35:10,156 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= |old(~a10~0)| ~a10~0)) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= 0 ~a12~0))) (.cse3 (not (= 9 |old(~a19~0)|))) (.cse4 (= |calculate_output_#in~input| 0)) (.cse5 (= |old(~a19~0)| ~a19~0))) (and (or (not (= 8 |old(~a19~0)|)) (= 8 ~a19~0)) (or (not (= 7 |old(~a19~0)|)) (and (= 7 ~a19~0) .cse0)) (or (or .cse1 .cse2 .cse3 (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|))) (= ~a1~0 23) .cse4) (or (and .cse5 .cse0) (= 6 |old(~a19~0)|) (< 1 |old(~a10~0)|)) (or (and (= ~a19~0 9) .cse0) .cse1 .cse2 .cse3 .cse4) (or (< 8 |old(~a19~0)|) (= 2 |old(~a10~0)|) (and (not (= ~a10~0 2)) .cse5)))) [2018-11-22 21:35:10,156 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,157 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-11-22 21:35:10,158 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-11-22 21:35:10,159 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 9) (= ~a1~0 23) (= |old(~a10~0)| ~a10~0))) [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-11-22 21:35:10,159 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (or (= 8 ~a19~0) (and (not (= main_~input~0 0)) (= ~a19~0 9)) (not (= 14 ~a4~0)) (and (not (= ~a10~0 2)) (<= ~a19~0 8)) (not (= 23 |old(~a1~0)|)) (= 7 ~a19~0) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (<= ~a10~0 1) (not (= 0 |old(~a10~0)|))) [2018-11-22 21:35:10,159 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-11-22 21:35:10,160 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-11-22 21:35:10,160 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (= 8 ~a19~0) (= ~a19~0 9) (not (= 14 ~a4~0)) (and (not (= ~a10~0 2)) (<= ~a19~0 8)) (not (= 23 |old(~a1~0)|)) (= 7 ~a19~0) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (<= ~a10~0 1) (not (= 0 |old(~a10~0)|))) [2018-11-22 21:35:10,160 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-11-22 21:35:10,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:35:10 BoogieIcfgContainer [2018-11-22 21:35:10,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:35:10,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:35:10,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:35:10,167 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:35:10,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:19" (3/4) ... [2018-11-22 21:35:10,180 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:35:10,184 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 21:35:10,184 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-22 21:35:10,184 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 21:35:10,192 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-22 21:35:10,193 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 21:35:10,217 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((8 == a19 || a19 == 9) || !(14 == a4)) || (!(a10 == 2) && a19 <= 8)) || !(23 == \old(a1))) || 7 == a19) || !(0 == a12)) || !(9 == \old(a19))) || a10 <= 1) || !(0 == \old(a10)) [2018-11-22 21:35:10,292 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fae39b1c-48d7-48fb-a680-6b30064ceac4/bin-2019/utaipan/witness.graphml [2018-11-22 21:35:10,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:35:10,293 INFO L168 Benchmark]: Toolchain (without parser) took 52780.27 ms. Allocated memory was 1.0 GB in the beginning and 4.9 GB in the end (delta: 3.9 GB). Free memory was 956.4 MB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.4 GB. Max. memory is 11.5 GB. [2018-11-22 21:35:10,294 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:35:10,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.51 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 921.5 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-22 21:35:10,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -230.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:35:10,296 INFO L168 Benchmark]: Boogie Preprocessor took 51.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:35:10,296 INFO L168 Benchmark]: RCFGBuilder took 1045.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:35:10,296 INFO L168 Benchmark]: TraceAbstraction took 51117.65 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.3 GB. Max. memory is 11.5 GB. [2018-11-22 21:35:10,296 INFO L168 Benchmark]: Witness Printer took 125.19 ms. Allocated memory is still 4.9 GB. Free memory is still 2.4 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:35:10,298 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.51 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 921.5 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 918.9 MB in the beginning and 1.1 GB in the end (delta: -230.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1045.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 51117.65 ms. Allocated memory was 1.2 GB in the beginning and 4.9 GB in the end (delta: 3.7 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.3 GB. Max. memory is 11.5 GB. * Witness Printer took 125.19 ms. Allocated memory is still 4.9 GB. Free memory is still 2.4 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((8 == a19 || a19 == 9) || !(14 == a4)) || (!(a10 == 2) && a19 <= 8)) || !(23 == \old(a1))) || 7 == a19) || !(0 == a12)) || !(9 == \old(a19))) || a10 <= 1) || !(0 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 51.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 47.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 535 SDtfs, 4425 SDslu, 1004 SDs, 0 SdLazy, 6387 SolverSat, 1464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1412 GetRequests, 1328 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1615occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 4 AbstIntIterations, 2 AbstIntStrong, 0.9967917571265809 AbsIntWeakeningRatio, 0.11358024691358025 AbsIntAvgWeakeningVarsNumRemoved, 13.898765432098765 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 123 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 60 PreInvPairs, 100 NumberOfFragments, 245 HoareAnnotationTreeSize, 60 FomulaSimplifications, 2411 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 694 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1733 NumberOfCodeBlocks, 1733 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2190 ConstructedInterpolants, 0 QuantifiedInterpolants, 1350664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 817 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 1573/1672 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...