./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/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 aac67f6dc6529e5dab098a5e1960c3e19b78df96 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 22:06:22,989 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:06:22,991 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:06:22,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:06:22,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:06:23,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:06:23,001 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:06:23,002 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:06:23,003 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:06:23,004 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:06:23,004 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:06:23,005 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:06:23,005 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:06:23,006 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:06:23,007 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:06:23,008 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:06:23,008 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:06:23,009 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:06:23,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:06:23,012 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:06:23,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:06:23,013 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:06:23,015 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:06:23,015 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:06:23,015 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:06:23,016 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:06:23,017 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:06:23,017 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:06:23,018 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:06:23,019 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:06:23,019 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:06:23,019 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:06:23,020 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:06:23,020 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:06:23,020 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:06:23,021 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:06:23,021 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 22:06:23,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:06:23,031 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:06:23,032 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:06:23,032 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:06:23,032 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 22:06:23,033 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 22:06:23,033 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 22:06:23,034 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:06:23,034 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:06:23,034 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:06:23,035 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:06:23,036 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:06:23,036 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:06:23,036 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 22:06:23,037 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:06:23,037 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:06:23,037 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 22:06:23,037 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_7cc9da21-6715-4ea9-a23c-a839cb49665f/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 -> aac67f6dc6529e5dab098a5e1960c3e19b78df96 [2018-12-02 22:06:23,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:06:23,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:06:23,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:06:23,072 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:06:23,072 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:06:23,073 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c [2018-12-02 22:06:23,112 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/data/d4ad2a530/6fa8f1889c704b7f846b6eed59715985/FLAG00a32bd79 [2018-12-02 22:06:23,569 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:06:23,570 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/sv-benchmarks/c/eca-rers2012/Problem01_label17_true-unreach-call_false-termination.c [2018-12-02 22:06:23,576 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/data/d4ad2a530/6fa8f1889c704b7f846b6eed59715985/FLAG00a32bd79 [2018-12-02 22:06:23,584 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/data/d4ad2a530/6fa8f1889c704b7f846b6eed59715985 [2018-12-02 22:06:23,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:06:23,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:06:23,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:06:23,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:06:23,589 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:06:23,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2caf47c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23, skipping insertion in model container [2018-12-02 22:06:23,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:06:23,618 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:06:23,788 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:06:23,791 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:06:23,878 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:06:23,887 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:06:23,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23 WrapperNode [2018-12-02 22:06:23,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:06:23,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:06:23,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:06:23,888 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:06:23,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:06:23,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:06:23,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:06:23,908 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:06:23,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... [2018-12-02 22:06:23,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:06:23,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:06:23,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:06:23,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:06:23,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/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 [2018-12-02 22:06:23,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:06:23,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:06:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 22:06:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 22:06:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:06:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:06:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:06:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:06:24,526 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:06:24,526 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 22:06:24,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:24 BoogieIcfgContainer [2018-12-02 22:06:24,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:06:24,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:06:24,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:06:24,530 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:06:24,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:06:23" (1/3) ... [2018-12-02 22:06:24,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd092c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:06:24, skipping insertion in model container [2018-12-02 22:06:24,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:23" (2/3) ... [2018-12-02 22:06:24,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd092c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:06:24, skipping insertion in model container [2018-12-02 22:06:24,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:24" (3/3) ... [2018-12-02 22:06:24,533 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label17_true-unreach-call_false-termination.c [2018-12-02 22:06:24,541 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:06:24,547 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:06:24,558 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:06:24,579 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:06:24,579 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:06:24,580 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:06:24,580 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:06:24,580 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:06:24,580 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:06:24,580 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:06:24,580 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:06:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-02 22:06:24,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-12-02 22:06:24,600 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:24,601 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:06:24,602 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:24,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:24,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2018-12-02 22:06:24,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:24,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:24,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:24,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:24,637 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:24,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:24,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 22:06:24,865 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:24,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:06:24,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:06:24,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:06:24,879 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-02 22:06:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:25,296 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-02 22:06:25,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:06:25,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2018-12-02 22:06:25,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:25,306 INFO L225 Difference]: With dead ends: 547 [2018-12-02 22:06:25,306 INFO L226 Difference]: Without dead ends: 278 [2018-12-02 22:06:25,310 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 [2018-12-02 22:06:25,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-02 22:06:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-02 22:06:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-02 22:06:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 412 transitions. [2018-12-02 22:06:25,348 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 412 transitions. Word has length 122 [2018-12-02 22:06:25,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:25,348 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 412 transitions. [2018-12-02 22:06:25,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:06:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 412 transitions. [2018-12-02 22:06:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-12-02 22:06:25,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:25,352 INFO L402 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-12-02 22:06:25,352 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:25,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:25,352 INFO L82 PathProgramCache]: Analyzing trace with hash -850587645, now seen corresponding path program 1 times [2018-12-02 22:06:25,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:25,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:25,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:25,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:25,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:25,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:25,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 22:06:25,454 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:25,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:06:25,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:06:25,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:06:25,455 INFO L87 Difference]: Start difference. First operand 278 states and 412 transitions. Second operand 3 states. [2018-12-02 22:06:25,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:25,707 INFO L93 Difference]: Finished difference Result 820 states and 1233 transitions. [2018-12-02 22:06:25,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:06:25,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2018-12-02 22:06:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:25,710 INFO L225 Difference]: With dead ends: 820 [2018-12-02 22:06:25,710 INFO L226 Difference]: Without dead ends: 548 [2018-12-02 22:06:25,711 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:06:25,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2018-12-02 22:06:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 413. [2018-12-02 22:06:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2018-12-02 22:06:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 593 transitions. [2018-12-02 22:06:25,729 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 593 transitions. Word has length 139 [2018-12-02 22:06:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:25,729 INFO L480 AbstractCegarLoop]: Abstraction has 413 states and 593 transitions. [2018-12-02 22:06:25,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:06:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 593 transitions. [2018-12-02 22:06:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-12-02 22:06:25,731 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:25,732 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, 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, 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] [2018-12-02 22:06:25,732 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:25,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:25,732 INFO L82 PathProgramCache]: Analyzing trace with hash 252066703, now seen corresponding path program 1 times [2018-12-02 22:06:25,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:25,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:25,733 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:25,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:25,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:06:25,826 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:25,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:06:25,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:06:25,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:06:25,827 INFO L87 Difference]: Start difference. First operand 413 states and 593 transitions. Second operand 6 states. [2018-12-02 22:06:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:26,170 INFO L93 Difference]: Finished difference Result 1116 states and 1631 transitions. [2018-12-02 22:06:26,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:06:26,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-12-02 22:06:26,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:26,173 INFO L225 Difference]: With dead ends: 1116 [2018-12-02 22:06:26,173 INFO L226 Difference]: Without dead ends: 709 [2018-12-02 22:06:26,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-02 22:06:26,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2018-12-02 22:06:26,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 699. [2018-12-02 22:06:26,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-12-02 22:06:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 950 transitions. [2018-12-02 22:06:26,192 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 950 transitions. Word has length 165 [2018-12-02 22:06:26,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:26,192 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 950 transitions. [2018-12-02 22:06:26,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:06:26,192 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 950 transitions. [2018-12-02 22:06:26,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-12-02 22:06:26,194 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:26,194 INFO L402 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-12-02 22:06:26,194 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:26,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash -159860650, now seen corresponding path program 1 times [2018-12-02 22:06:26,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:26,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:26,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:26,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:26,195 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:26,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:26,263 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:06:26,264 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-12-02 22:06:26,265 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 22:06:26,292 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:06:26,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:06:26,708 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 22:06:26,710 INFO L272 AbstractInterpreter]: Visited 126 different actions 245 times. Merged at 3 different actions 3 times. Never widened. Performed 3380 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3380 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 22:06:26,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:26,717 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 22:06:26,946 INFO L227 lantSequenceWeakener]: Weakened 173 states. On average, predicates are now at 81.92% of their original sizes. [2018-12-02 22:06:26,946 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 22:06:27,003 INFO L418 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-12-02 22:06:27,003 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 22:06:27,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:06:27,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 22:06:27,004 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:27,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 22:06:27,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 22:06:27,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:06:27,005 INFO L87 Difference]: Start difference. First operand 699 states and 950 transitions. Second operand 10 states. [2018-12-02 22:06:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:30,429 INFO L93 Difference]: Finished difference Result 2044 states and 2779 transitions. [2018-12-02 22:06:30,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 22:06:30,429 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2018-12-02 22:06:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:30,432 INFO L225 Difference]: With dead ends: 2044 [2018-12-02 22:06:30,432 INFO L226 Difference]: Without dead ends: 1351 [2018-12-02 22:06:30,433 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-02 22:06:30,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2018-12-02 22:06:30,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 836. [2018-12-02 22:06:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 836 states. [2018-12-02 22:06:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1099 transitions. [2018-12-02 22:06:30,447 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1099 transitions. Word has length 176 [2018-12-02 22:06:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:30,448 INFO L480 AbstractCegarLoop]: Abstraction has 836 states and 1099 transitions. [2018-12-02 22:06:30,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 22:06:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1099 transitions. [2018-12-02 22:06:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-12-02 22:06:30,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:30,450 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 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, 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] [2018-12-02 22:06:30,450 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:30,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:30,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1550832441, now seen corresponding path program 1 times [2018-12-02 22:06:30,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:30,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:30,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:30,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:30,451 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 67 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 22:06:30,521 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:30,521 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:06:30,522 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2018-12-02 22:06:30,522 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 22:06:30,526 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:06:30,526 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:06:30,641 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 22:06:30,641 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 4 different actions 4 times. Never widened. Performed 3260 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3260 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 22:06:30,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:30,643 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 22:06:30,793 INFO L227 lantSequenceWeakener]: Weakened 185 states. On average, predicates are now at 81.88% of their original sizes. [2018-12-02 22:06:30,794 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 22:06:30,850 INFO L418 sIntCurrentIteration]: We unified 187 AI predicates to 187 [2018-12-02 22:06:30,850 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 22:06:30,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:06:30,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 22:06:30,851 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:30,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 22:06:30,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 22:06:30,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:06:30,851 INFO L87 Difference]: Start difference. First operand 836 states and 1099 transitions. Second operand 10 states. [2018-12-02 22:06:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:33,086 INFO L93 Difference]: Finished difference Result 1940 states and 2532 transitions. [2018-12-02 22:06:33,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 22:06:33,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2018-12-02 22:06:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:33,088 INFO L225 Difference]: With dead ends: 1940 [2018-12-02 22:06:33,088 INFO L226 Difference]: Without dead ends: 1110 [2018-12-02 22:06:33,089 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-02 22:06:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2018-12-02 22:06:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1108. [2018-12-02 22:06:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2018-12-02 22:06:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1395 transitions. [2018-12-02 22:06:33,103 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1395 transitions. Word has length 188 [2018-12-02 22:06:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:33,103 INFO L480 AbstractCegarLoop]: Abstraction has 1108 states and 1395 transitions. [2018-12-02 22:06:33,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 22:06:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1395 transitions. [2018-12-02 22:06:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-12-02 22:06:33,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:33,105 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2018-12-02 22:06:33,105 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:33,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:33,106 INFO L82 PathProgramCache]: Analyzing trace with hash -618142062, now seen corresponding path program 1 times [2018-12-02 22:06:33,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:33,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:33,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:33,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:33,106 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:33,148 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 79 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-02 22:06:33,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:33,148 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:06:33,148 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-12-02 22:06:33,149 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 22:06:33,151 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:06:33,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:06:33,315 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 22:06:33,316 INFO L272 AbstractInterpreter]: Visited 129 different actions 380 times. Merged at 6 different actions 15 times. Never widened. Performed 5164 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5164 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-12-02 22:06:33,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:33,317 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 22:06:33,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:33,318 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/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 [2018-12-02 22:06:33,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:33,324 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 22:06:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:33,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:06:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-02 22:06:33,433 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 22:06:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 79 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-12-02 22:06:33,521 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 22:06:33,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-12-02 22:06:33,522 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 22:06:33,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 22:06:33,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 22:06:33,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-02 22:06:33,523 INFO L87 Difference]: Start difference. First operand 1108 states and 1395 transitions. Second operand 8 states. [2018-12-02 22:06:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:34,902 INFO L93 Difference]: Finished difference Result 3628 states and 4871 transitions. [2018-12-02 22:06:34,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-02 22:06:34,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2018-12-02 22:06:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:34,908 INFO L225 Difference]: With dead ends: 3628 [2018-12-02 22:06:34,908 INFO L226 Difference]: Without dead ends: 2375 [2018-12-02 22:06:34,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-12-02 22:06:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2018-12-02 22:06:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1805. [2018-12-02 22:06:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1805 states. [2018-12-02 22:06:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2060 transitions. [2018-12-02 22:06:34,940 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2060 transitions. Word has length 199 [2018-12-02 22:06:34,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:34,940 INFO L480 AbstractCegarLoop]: Abstraction has 1805 states and 2060 transitions. [2018-12-02 22:06:34,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 22:06:34,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2060 transitions. [2018-12-02 22:06:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-02 22:06:34,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:34,943 INFO L402 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-12-02 22:06:34,944 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:34,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:34,944 INFO L82 PathProgramCache]: Analyzing trace with hash 589887547, now seen corresponding path program 1 times [2018-12-02 22:06:34,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:34,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:34,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:34,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:34,945 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 107 proven. 15 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-02 22:06:35,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:35,057 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:06:35,058 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-02 22:06:35,058 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 22:06:35,060 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:06:35,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:06:35,161 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 22:06:35,161 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 4 different actions 4 times. Never widened. Performed 3322 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-12-02 22:06:35,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:35,163 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 22:06:35,318 INFO L227 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 81.84% of their original sizes. [2018-12-02 22:06:35,318 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 22:06:35,356 INFO L418 sIntCurrentIteration]: We unified 220 AI predicates to 220 [2018-12-02 22:06:35,356 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 22:06:35,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:06:35,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-02 22:06:35,356 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:35,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 22:06:35,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 22:06:35,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:06:35,357 INFO L87 Difference]: Start difference. First operand 1805 states and 2060 transitions. Second operand 10 states. [2018-12-02 22:06:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:37,034 INFO L93 Difference]: Finished difference Result 3606 states and 4143 transitions. [2018-12-02 22:06:37,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 22:06:37,034 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2018-12-02 22:06:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:37,038 INFO L225 Difference]: With dead ends: 3606 [2018-12-02 22:06:37,038 INFO L226 Difference]: Without dead ends: 2079 [2018-12-02 22:06:37,039 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-02 22:06:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2018-12-02 22:06:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2077. [2018-12-02 22:06:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2018-12-02 22:06:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2353 transitions. [2018-12-02 22:06:37,064 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2353 transitions. Word has length 221 [2018-12-02 22:06:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:37,064 INFO L480 AbstractCegarLoop]: Abstraction has 2077 states and 2353 transitions. [2018-12-02 22:06:37,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 22:06:37,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2353 transitions. [2018-12-02 22:06:37,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-12-02 22:06:37,067 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:37,068 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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, 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, 1] [2018-12-02 22:06:37,068 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:37,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:37,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1294651584, now seen corresponding path program 1 times [2018-12-02 22:06:37,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:37,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:37,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:37,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:37,069 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 61 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-12-02 22:06:37,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:37,172 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:06:37,172 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-12-02 22:06:37,173 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [145], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [621], [623], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-12-02 22:06:37,174 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 22:06:37,174 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 22:06:37,420 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 22:06:37,420 INFO L272 AbstractInterpreter]: Visited 129 different actions 515 times. Merged at 8 different actions 32 times. Never widened. Performed 7233 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7233 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-12-02 22:06:37,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:37,421 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 22:06:37,421 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:37,421 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/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 [2018-12-02 22:06:37,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:37,427 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 22:06:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:37,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:06:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-02 22:06:37,516 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 22:06:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 109 proven. 54 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-02 22:06:37,586 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 22:06:37,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-12-02 22:06:37,586 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 22:06:37,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 22:06:37,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 22:06:37,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-12-02 22:06:37,587 INFO L87 Difference]: Start difference. First operand 2077 states and 2353 transitions. Second operand 11 states. [2018-12-02 22:06:38,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:38,395 INFO L93 Difference]: Finished difference Result 4768 states and 5436 transitions. [2018-12-02 22:06:38,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 22:06:38,395 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2018-12-02 22:06:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:38,403 INFO L225 Difference]: With dead ends: 4768 [2018-12-02 22:06:38,403 INFO L226 Difference]: Without dead ends: 3104 [2018-12-02 22:06:38,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 459 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-12-02 22:06:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2018-12-02 22:06:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3098. [2018-12-02 22:06:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3098 states. [2018-12-02 22:06:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 3471 transitions. [2018-12-02 22:06:38,452 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 3471 transitions. Word has length 229 [2018-12-02 22:06:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:38,452 INFO L480 AbstractCegarLoop]: Abstraction has 3098 states and 3471 transitions. [2018-12-02 22:06:38,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 22:06:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 3471 transitions. [2018-12-02 22:06:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-12-02 22:06:38,455 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:38,456 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 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, 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, 1] [2018-12-02 22:06:38,456 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:38,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:38,456 INFO L82 PathProgramCache]: Analyzing trace with hash -114600298, now seen corresponding path program 2 times [2018-12-02 22:06:38,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:38,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:38,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:38,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:38,457 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 63 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-12-02 22:06:38,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:38,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 22:06:38,545 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-02 22:06:38,545 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-02 22:06:38,545 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:06:38,545 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 22:06:38,552 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-02 22:06:38,552 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-02 22:06:38,589 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-02 22:06:38,589 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-02 22:06:38,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:06:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-12-02 22:06:38,629 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 22:06:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-12-02 22:06:38,707 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:06:38,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-12-02 22:06:38,707 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:38,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:06:38,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:06:38,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:06:38,708 INFO L87 Difference]: Start difference. First operand 3098 states and 3471 transitions. Second operand 3 states. [2018-12-02 22:06:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:38,953 INFO L93 Difference]: Finished difference Result 7151 states and 8197 transitions. [2018-12-02 22:06:38,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:06:38,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2018-12-02 22:06:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:38,953 INFO L225 Difference]: With dead ends: 7151 [2018-12-02 22:06:38,954 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 22:06:38,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 457 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:06:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 22:06:38,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 22:06:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 22:06:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 22:06:38,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2018-12-02 22:06:38,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:38,960 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 22:06:38,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:06:38,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 22:06:38,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 22:06:38,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 22:06:39,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:06:39,833 WARN L180 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 95 [2018-12-02 22:06:39,964 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 44 [2018-12-02 22:06:40,107 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 44 [2018-12-02 22:06:40,108 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 22:06:40,108 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a20~0)| ~a20~0)) [2018-12-02 22:06:40,108 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,109 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,110 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-02 22:06:40,111 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,112 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-02 22:06:40,113 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-02 22:06:40,114 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse16 (= ~a7~0 |old(~a7~0)|)) (.cse17 (= |old(~a8~0)| ~a8~0)) (.cse18 (= |old(~a20~0)| ~a20~0)) (.cse8 (not (= 1 |old(~a21~0)|))) (.cse13 (not (= 1 |old(~a20~0)|))) (.cse14 (= 0 |old(~a16~0)|)) (.cse9 (not (= 8 ~a12~0))) (.cse7 (= |calculate_output_#in~input| 0)) (.cse10 (not (= 1 |old(~a17~0)|)))) (let ((.cse4 (= ~a16~0 5)) (.cse3 (not (= 5 |old(~a16~0)|))) (.cse11 (not (= ~a16~0 0))) (.cse5 (= ~a17~0 1)) (.cse6 (= ~a21~0 1)) (.cse2 (or .cse8 .cse13 .cse14 .cse9 .cse7 (= 0 |old(~a8~0)|) .cse10)) (.cse0 (not (= 0 |old(~a7~0)|))) (.cse1 (not (= 15 |old(~a8~0)|))) (.cse19 (<= ~a17~0 0)) (.cse12 (< 0 |old(~a17~0)|)) (.cse15 (and .cse16 .cse17 .cse18)) (.cse20 (< 0 |old(~a20~0)|)) (.cse21 (< 13 |old(~a8~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse4) .cse7 (or .cse0 .cse8 .cse1 (not (= 0 |old(~a20~0)|)) .cse3 .cse9 .cse10)) (or .cse0 .cse8 (and .cse11 .cse6) .cse9 .cse12 .cse7 .cse13 .cse1 .cse14) (or .cse15 .cse13) (or (and .cse16 .cse17 .cse18 .cse19) .cse12 .cse20) (or (and .cse11 .cse5 .cse6) .cse2) (or .cse13 .cse12 .cse19) (or (and (= ~a17~0 0) (= ~a16~0 6)) .cse7 (or (not (= 6 |old(~a16~0)|)) .cse0 .cse8 .cse13 .cse1 (not (= 0 |old(~a17~0)|)) .cse9)) (or .cse21 .cse19 .cse12) (or (and (and (= 1 ~a7~0) .cse17) .cse18 .cse19) (or (= 14 |old(~a8~0)|) (not (= 1 |old(~a7~0)|))) .cse12) (or .cse15 (< |old(~a8~0)| 15) .cse20) (or .cse21 (and .cse18 (and .cse16 .cse17)))))) [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,115 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,116 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-12-02 22:06:40,117 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 1 |old(~a17~0)|))) [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-02 22:06:40,117 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse2 (not (= ~a8~0 14))) (.cse1 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1) (not (= 8 ~a12~0)) (and (and (= 1 ~a7~0) .cse2) .cse0) (not (= 1 |old(~a20~0)|)) (and .cse2 .cse1) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (<= ~a8~0 13) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (= 1 ~a20~0))) [2018-12-02 22:06:40,117 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-02 22:06:40,118 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-02 22:06:40,118 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse2 (not (= ~a8~0 14))) (.cse1 (<= ~a20~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1) (not (= 8 ~a12~0)) (and (and (= 1 ~a7~0) .cse2) .cse0) (not (= 1 |old(~a20~0)|)) (and .cse2 .cse1) (not (= 5 |old(~a16~0)|)) (not (= 0 |old(~a7~0)|)) (<= ~a8~0 13) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)) (= 1 ~a20~0))) [2018-12-02 22:06:40,118 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-02 22:06:40,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:06:40 BoogieIcfgContainer [2018-12-02 22:06:40,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:06:40,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:06:40,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:06:40,125 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:06:40,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:24" (3/4) ... [2018-12-02 22:06:40,127 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 22:06:40,130 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 22:06:40,131 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 22:06:40,131 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 22:06:40,137 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 22:06:40,137 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 22:06:40,154 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(1 == \old(a21)) || (a17 <= 0 && a20 <= 0)) || !(8 == a12)) || ((1 == a7 && !(a8 == 14)) && a17 <= 0)) || !(1 == \old(a20))) || (!(a8 == 14) && a20 <= 0)) || !(5 == \old(a16))) || !(0 == \old(a7))) || a8 <= 13) || !(1 == \old(a17))) || !(15 == \old(a8))) || 1 == a20 [2018-12-02 22:06:40,198 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7cc9da21-6715-4ea9-a23c-a839cb49665f/bin-2019/utaipan/witness.graphml [2018-12-02 22:06:40,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:06:40,199 INFO L168 Benchmark]: Toolchain (without parser) took 16612.35 ms. Allocated memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: 1.0 GB). Free memory was 951.7 MB in the beginning and 907.5 MB in the end (delta: 44.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-02 22:06:40,199 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:06:40,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:40,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:06:40,199 INFO L168 Benchmark]: Boogie Preprocessor took 39.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:40,200 INFO L168 Benchmark]: RCFGBuilder took 579.49 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: 104.5 MB). Peak memory consumption was 104.5 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:40,200 INFO L168 Benchmark]: TraceAbstraction took 15596.77 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 902.3 MB). Free memory was 1.0 GB in the beginning and 930.8 MB in the end (delta: 72.5 MB). Peak memory consumption was 974.8 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:40,200 INFO L168 Benchmark]: Witness Printer took 73.79 ms. Allocated memory is still 2.1 GB. Free memory was 930.8 MB in the beginning and 907.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:40,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 579.49 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: 104.5 MB). Peak memory consumption was 104.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15596.77 ms. Allocated memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: 902.3 MB). Free memory was 1.0 GB in the beginning and 930.8 MB in the end (delta: 72.5 MB). Peak memory consumption was 974.8 MB. Max. memory is 11.5 GB. * Witness Printer took 73.79 ms. Allocated memory is still 2.1 GB. Free memory was 930.8 MB in the beginning and 907.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a21)) || (a17 <= 0 && a20 <= 0)) || !(8 == a12)) || ((1 == a7 && !(a8 == 14)) && a17 <= 0)) || !(1 == \old(a20))) || (!(a8 == 14) && a20 <= 0)) || !(5 == \old(a16))) || !(0 == \old(a7))) || a8 <= 13) || !(1 == \old(a17))) || !(15 == \old(a8))) || 1 == a20 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 15.5s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 10.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 566 SDtfs, 5854 SDslu, 503 SDs, 0 SdLazy, 8169 SolverSat, 1320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 2009 GetRequests, 1891 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3098occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9973557659539897 AbsIntWeakeningRatio, 0.20103092783505155 AbsIntAvgWeakeningVarsNumRemoved, 29.50171821305842 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1240 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 114 PreInvPairs, 190 NumberOfFragments, 531 HoareAnnotationTreeSize, 114 FomulaSimplifications, 12283 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5031 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2325 NumberOfCodeBlocks, 2261 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2967 ConstructedInterpolants, 0 QuantifiedInterpolants, 1159139 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1631 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 1638/1880 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...