./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label05_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_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label05_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6893c9ea3ad65b75d2a8fdb58db378617d0e1a5f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:17:53,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:17:53,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:17:53,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:17:53,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:17:53,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:17:53,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:17:53,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:17:53,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:17:53,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:17:53,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:17:53,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:17:53,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:17:53,929 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:17:53,930 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:17:53,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:17:53,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:17:53,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:17:53,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:17:53,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:17:53,935 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:17:53,936 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:17:53,938 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:17:53,938 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:17:53,938 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:17:53,939 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:17:53,939 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:17:53,940 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:17:53,940 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:17:53,941 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:17:53,941 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:17:53,942 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:17:53,942 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:17:53,942 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:17:53,943 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:17:53,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:17:53,944 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 15:17:53,953 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:17:53,953 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:17:53,954 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:17:53,954 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:17:53,954 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 15:17:53,954 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 15:17:53,955 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 15:17:53,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:17:53,955 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:17:53,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:17:53,955 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:17:53,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:17:53,956 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:17:53,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:17:53,957 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:17:53,957 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:17:53,957 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:17:53,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:17:53,958 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:17:53,958 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:17:53,958 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:17:53,958 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 15:17:53,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:17:53,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 15:17:53,958 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer 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 -> Automizer 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 -> 6893c9ea3ad65b75d2a8fdb58db378617d0e1a5f [2018-12-02 15:17:53,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:17:53,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:17:53,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:17:53,991 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:17:53,991 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:17:53,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label05_true-unreach-call_false-termination.c [2018-12-02 15:17:54,026 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/data/bc9f82226/4e7c85dca9ed43c4bc9a016bc16dea4c/FLAG85cdb88cf [2018-12-02 15:17:54,477 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:17:54,477 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/sv-benchmarks/c/eca-rers2012/Problem01_label05_true-unreach-call_false-termination.c [2018-12-02 15:17:54,485 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/data/bc9f82226/4e7c85dca9ed43c4bc9a016bc16dea4c/FLAG85cdb88cf [2018-12-02 15:17:54,494 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/data/bc9f82226/4e7c85dca9ed43c4bc9a016bc16dea4c [2018-12-02 15:17:54,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:17:54,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:17:54,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:17:54,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:17:54,499 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:17:54,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54724d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54, skipping insertion in model container [2018-12-02 15:17:54,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:17:54,529 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:17:54,719 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:17:54,723 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:17:54,805 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:17:54,815 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:17:54,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54 WrapperNode [2018-12-02 15:17:54,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:17:54,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:17:54,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:17:54,816 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:17:54,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:17:54,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:17:54,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:17:54,835 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:17:54,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... [2018-12-02 15:17:54,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:17:54,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:17:54,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:17:54,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:17:54,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/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 15:17:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:17:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:17:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 15:17:54,913 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 15:17:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:17:54,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:17:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:17:54,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:17:55,427 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:17:55,427 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 15:17:55,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:55 BoogieIcfgContainer [2018-12-02 15:17:55,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:17:55,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:17:55,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:17:55,430 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:17:55,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:17:54" (1/3) ... [2018-12-02 15:17:55,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d43cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:55, skipping insertion in model container [2018-12-02 15:17:55,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:17:54" (2/3) ... [2018-12-02 15:17:55,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d43cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:55, skipping insertion in model container [2018-12-02 15:17:55,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:55" (3/3) ... [2018-12-02 15:17:55,432 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label05_true-unreach-call_false-termination.c [2018-12-02 15:17:55,438 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:17:55,443 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:17:55,453 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:17:55,472 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 15:17:55,473 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:17:55,473 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:17:55,473 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:17:55,473 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:17:55,473 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:17:55,473 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:17:55,473 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:17:55,473 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:17:55,487 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-12-02 15:17:55,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-12-02 15:17:55,493 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:55,493 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] [2018-12-02 15:17:55,495 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:55,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:55,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2018-12-02 15:17:55,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:55,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:55,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:55,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:55,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:55,726 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 15:17:55,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:17:55,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 15:17:55,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 15:17:55,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:17:55,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:17:55,740 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-12-02 15:17:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:56,198 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-12-02 15:17:56,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:17:56,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2018-12-02 15:17:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:56,208 INFO L225 Difference]: With dead ends: 547 [2018-12-02 15:17:56,208 INFO L226 Difference]: Without dead ends: 278 [2018-12-02 15:17:56,212 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 15:17:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-02 15:17:56,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-12-02 15:17:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-12-02 15:17:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2018-12-02 15:17:56,249 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 100 [2018-12-02 15:17:56,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:56,250 INFO L480 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2018-12-02 15:17:56,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 15:17:56,250 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2018-12-02 15:17:56,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-12-02 15:17:56,253 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:56,254 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 15:17:56,254 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:56,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:56,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2018-12-02 15:17:56,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:56,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:56,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:56,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:56,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:56,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:17:56,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 15:17:56,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 15:17:56,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:17:56,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 15:17:56,349 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 6 states. [2018-12-02 15:17:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:56,728 INFO L93 Difference]: Finished difference Result 703 states and 1026 transitions. [2018-12-02 15:17:56,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:17:56,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-12-02 15:17:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:56,731 INFO L225 Difference]: With dead ends: 703 [2018-12-02 15:17:56,731 INFO L226 Difference]: Without dead ends: 431 [2018-12-02 15:17:56,732 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 15:17:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-12-02 15:17:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 419. [2018-12-02 15:17:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-12-02 15:17:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 588 transitions. [2018-12-02 15:17:56,749 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 588 transitions. Word has length 110 [2018-12-02 15:17:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:56,750 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 588 transitions. [2018-12-02 15:17:56,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 15:17:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 588 transitions. [2018-12-02 15:17:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-12-02 15:17:56,752 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:56,752 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 15:17:56,752 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:56,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:56,752 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2018-12-02 15:17:56,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:56,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:56,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:56,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:56,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:56,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:17:56,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 15:17:56,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 15:17:56,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 15:17:56,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 15:17:56,841 INFO L87 Difference]: Start difference. First operand 419 states and 588 transitions. Second operand 3 states. [2018-12-02 15:17:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:57,096 INFO L93 Difference]: Finished difference Result 1241 states and 1781 transitions. [2018-12-02 15:17:57,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 15:17:57,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2018-12-02 15:17:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:57,099 INFO L225 Difference]: With dead ends: 1241 [2018-12-02 15:17:57,099 INFO L226 Difference]: Without dead ends: 828 [2018-12-02 15:17:57,100 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 15:17:57,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2018-12-02 15:17:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2018-12-02 15:17:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2018-12-02 15:17:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1140 transitions. [2018-12-02 15:17:57,116 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1140 transitions. Word has length 111 [2018-12-02 15:17:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:57,116 INFO L480 AbstractCegarLoop]: Abstraction has 828 states and 1140 transitions. [2018-12-02 15:17:57,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 15:17:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1140 transitions. [2018-12-02 15:17:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-12-02 15:17:57,118 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:57,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:17:57,118 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:57,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:57,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1258087941, now seen corresponding path program 1 times [2018-12-02 15:17:57,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:57,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:57,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:57,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:57,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:57,169 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:57,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:17:57,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 15:17:57,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 15:17:57,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 15:17:57,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 15:17:57,170 INFO L87 Difference]: Start difference. First operand 828 states and 1140 transitions. Second operand 6 states. [2018-12-02 15:17:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:57,565 INFO L93 Difference]: Finished difference Result 2250 states and 3291 transitions. [2018-12-02 15:17:57,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:17:57,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-12-02 15:17:57,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:57,573 INFO L225 Difference]: With dead ends: 2250 [2018-12-02 15:17:57,573 INFO L226 Difference]: Without dead ends: 1428 [2018-12-02 15:17:57,575 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 15:17:57,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2018-12-02 15:17:57,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1400. [2018-12-02 15:17:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1400 states. [2018-12-02 15:17:57,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1852 transitions. [2018-12-02 15:17:57,616 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1852 transitions. Word has length 125 [2018-12-02 15:17:57,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:57,616 INFO L480 AbstractCegarLoop]: Abstraction has 1400 states and 1852 transitions. [2018-12-02 15:17:57,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 15:17:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1852 transitions. [2018-12-02 15:17:57,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-12-02 15:17:57,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:57,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:17:57,620 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:57,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:57,620 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2018-12-02 15:17:57,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:57,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:57,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:57,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:57,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:57,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:57,702 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/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 15:17:57,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:57,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:57,841 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 15:17:57,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-12-02 15:17:57,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 15:17:57,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 15:17:57,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-02 15:17:57,842 INFO L87 Difference]: Start difference. First operand 1400 states and 1852 transitions. Second operand 7 states. [2018-12-02 15:17:58,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:58,315 INFO L93 Difference]: Finished difference Result 3245 states and 4457 transitions. [2018-12-02 15:17:58,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:17:58,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2018-12-02 15:17:58,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:58,323 INFO L225 Difference]: With dead ends: 3245 [2018-12-02 15:17:58,324 INFO L226 Difference]: Without dead ends: 1851 [2018-12-02 15:17:58,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-02 15:17:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2018-12-02 15:17:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1541. [2018-12-02 15:17:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2018-12-02 15:17:58,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2040 transitions. [2018-12-02 15:17:58,363 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2040 transitions. Word has length 142 [2018-12-02 15:17:58,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:58,364 INFO L480 AbstractCegarLoop]: Abstraction has 1541 states and 2040 transitions. [2018-12-02 15:17:58,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 15:17:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2040 transitions. [2018-12-02 15:17:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-12-02 15:17:58,366 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:58,366 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:17:58,367 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:58,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:58,367 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2018-12-02 15:17:58,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:58,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:58,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:58,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:58,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:58,434 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:58,434 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/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 15:17:58,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:58,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 15:17:58,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 15:17:58,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-12-02 15:17:58,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 15:17:58,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 15:17:58,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 15:17:58,543 INFO L87 Difference]: Start difference. First operand 1541 states and 2040 transitions. Second operand 8 states. [2018-12-02 15:17:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:17:59,544 INFO L93 Difference]: Finished difference Result 3718 states and 5160 transitions. [2018-12-02 15:17:59,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-02 15:17:59,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2018-12-02 15:17:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:17:59,550 INFO L225 Difference]: With dead ends: 3718 [2018-12-02 15:17:59,550 INFO L226 Difference]: Without dead ends: 2183 [2018-12-02 15:17:59,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2018-12-02 15:17:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2018-12-02 15:17:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1712. [2018-12-02 15:17:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1712 states. [2018-12-02 15:17:59,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2129 transitions. [2018-12-02 15:17:59,586 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2129 transitions. Word has length 146 [2018-12-02 15:17:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:17:59,586 INFO L480 AbstractCegarLoop]: Abstraction has 1712 states and 2129 transitions. [2018-12-02 15:17:59,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 15:17:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2129 transitions. [2018-12-02 15:17:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-12-02 15:17:59,588 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:17:59,588 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:17:59,588 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:17:59,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:17:59,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1440991952, now seen corresponding path program 1 times [2018-12-02 15:17:59,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:17:59,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:17:59,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:59,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:59,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:17:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:17:59,661 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:17:59,661 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/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 15:17:59,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:17:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:17:59,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:17:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-02 15:17:59,766 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 15:17:59,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-12-02 15:17:59,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 15:17:59,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 15:17:59,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 15:17:59,767 INFO L87 Difference]: Start difference. First operand 1712 states and 2129 transitions. Second operand 8 states. [2018-12-02 15:18:00,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:18:00,581 INFO L93 Difference]: Finished difference Result 5639 states and 7681 transitions. [2018-12-02 15:18:00,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-02 15:18:00,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2018-12-02 15:18:00,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:18:00,592 INFO L225 Difference]: With dead ends: 5639 [2018-12-02 15:18:00,592 INFO L226 Difference]: Without dead ends: 3933 [2018-12-02 15:18:00,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2018-12-02 15:18:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2018-12-02 15:18:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3432. [2018-12-02 15:18:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3432 states. [2018-12-02 15:18:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3432 states to 3432 states and 4323 transitions. [2018-12-02 15:18:00,660 INFO L78 Accepts]: Start accepts. Automaton has 3432 states and 4323 transitions. Word has length 166 [2018-12-02 15:18:00,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:18:00,660 INFO L480 AbstractCegarLoop]: Abstraction has 3432 states and 4323 transitions. [2018-12-02 15:18:00,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 15:18:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3432 states and 4323 transitions. [2018-12-02 15:18:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-12-02 15:18:00,664 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:18:00,665 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:18:00,665 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:18:00,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:18:00,665 INFO L82 PathProgramCache]: Analyzing trace with hash -648776304, now seen corresponding path program 1 times [2018-12-02 15:18:00,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:18:00,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:18:00,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:18:00,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:18:00,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:18:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:18:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 109 proven. 28 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-02 15:18:00,758 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 15:18:00,758 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 15:18:00,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:18:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:18:00,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:18:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 86 proven. 54 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-12-02 15:18:00,888 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 15:18:00,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-12-02 15:18:00,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 15:18:00,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 15:18:00,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 15:18:00,889 INFO L87 Difference]: Start difference. First operand 3432 states and 4323 transitions. Second operand 8 states. [2018-12-02 15:18:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:18:02,245 INFO L93 Difference]: Finished difference Result 7100 states and 9084 transitions. [2018-12-02 15:18:02,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-02 15:18:02,245 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2018-12-02 15:18:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:18:02,246 INFO L225 Difference]: With dead ends: 7100 [2018-12-02 15:18:02,246 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 15:18:02,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2018-12-02 15:18:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 15:18:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 15:18:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 15:18:02,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 15:18:02,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2018-12-02 15:18:02,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:18:02,255 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 15:18:02,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 15:18:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 15:18:02,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 15:18:02,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 15:18:02,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,441 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 15:18:02,999 WARN L180 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 62 [2018-12-02 15:18:03,404 WARN L180 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 61 [2018-12-02 15:18:03,791 WARN L180 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 61 [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:18:03,793 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) (= ~a17~0 |old(~a17~0)|) (= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,793 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-12-02 15:18:03,794 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-12-02 15:18:03,795 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-12-02 15:18:03,796 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,797 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-12-02 15:18:03,798 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-12-02 15:18:03,799 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse18 (< 0 |old(~a21~0)|)) (.cse12 (= |old(~a16~0)| ~a16~0)) (.cse10 (= ~a7~0 |old(~a7~0)|)) (.cse11 (= |old(~a8~0)| ~a8~0)) (.cse16 (= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a20~0 |old(~a20~0)|)) (.cse15 (= 6 |old(~a16~0)|)) (.cse4 (not (= 1 |old(~a21~0)|))) (.cse17 (not (= 1 |old(~a20~0)|)))) (let ((.cse0 (or .cse4 (= 4 |old(~a16~0)|) .cse17)) (.cse5 (= 13 |old(~a8~0)|)) (.cse8 (not (= 1 |old(~a7~0)|))) (.cse7 (or .cse15 .cse4 .cse17)) (.cse6 (not (= 1 |old(~a17~0)|))) (.cse1 (< 0 |old(~a7~0)|)) (.cse3 (and .cse12 .cse10 .cse11 .cse16 (= 1 ~a21~0) .cse13)) (.cse9 (or .cse15 .cse18)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse2 (< 0 |old(~a17~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 .cse1 .cse2) (or .cse4 .cse3 .cse5 .cse1 .cse6) (or .cse7 .cse8 .cse3 .cse6) (or .cse9 (and .cse10 .cse11 .cse12 .cse13 .cse14 (= 1 ~a17~0)) .cse6) (or .cse0 .cse3 .cse1 .cse6) (or .cse15 .cse4 .cse3 .cse5 .cse8 .cse2) (or .cse3 .cse7 .cse1 .cse6) (or (or .cse15 .cse4 .cse1) .cse2 .cse3) (or .cse9 .cse2 (and .cse10 .cse11 .cse16 .cse12 .cse13 .cse14)) (or .cse17 (and .cse12 .cse14 .cse10 .cse11 .cse16 .cse13) .cse2 .cse18)))) [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-12-02 15:18:03,800 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-12-02 15:18:03,801 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a20~0) (not (= ~a16~0 6)) (= 1 ~a21~0) (<= ~a7~0 0) (not (= ~a8~0 13)) (not (= ~a16~0 4)) (= 1 ~a17~0)) [2018-12-02 15:18:03,802 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 15:18:03,802 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:18:03,802 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 6 |old(~a16~0)|) (not (= 1 |old(~a21~0)|)) (= 4 |old(~a16~0)|) (not (= 1 |old(~a20~0)|)) (and (= |old(~a16~0)| ~a16~0) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|)) (= 13 |old(~a8~0)|) (< 0 |old(~a7~0)|) (not (= 1 |old(~a17~0)|))) [2018-12-02 15:18:03,803 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-12-02 15:18:03,803 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (not (= ~a16~0 6))) (.cse10 (= 1 ~a20~0)) (.cse3 (= 1 ~a21~0))) (let ((.cse8 (and .cse10 .cse3 (not (= ~a16~0 4)))) (.cse4 (not (= ~a8~0 13))) (.cse5 (<= ~a7~0 0)) (.cse6 (and .cse10 .cse2 .cse3)) (.cse7 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse9 (<= ~a21~0 0)) (.cse1 (<= ~a17~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 (and .cse2 .cse3 .cse4)) (and (and .cse2 .cse3 .cse5) .cse1) (and .cse6 .cse5 .cse7) (not (= 1 |old(~a20~0)|)) (< 0 |old(~a7~0)|) (and (and .cse8 .cse7) .cse5) (and .cse9 .cse2 .cse7) (= 6 |old(~a16~0)|) (and .cse3 .cse4 .cse5 .cse7) (and (and .cse8 .cse5) .cse1) (and (and .cse3 .cse4 .cse5) .cse1) (= 13 |old(~a8~0)|) (and .cse9 .cse2 .cse1) (and (and .cse6 .cse7) .cse0) (not (= 1 |old(~a17~0)|)) (= 4 |old(~a16~0)|) (and .cse9 .cse10 .cse1)))) [2018-12-02 15:18:03,803 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-12-02 15:18:03,803 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-12-02 15:18:03,803 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (not (= ~a16~0 6))) (.cse10 (= 1 ~a20~0)) (.cse3 (= 1 ~a21~0))) (let ((.cse8 (and .cse10 .cse3 (not (= ~a16~0 4)))) (.cse4 (not (= ~a8~0 13))) (.cse5 (<= ~a7~0 0)) (.cse6 (and .cse10 .cse2 .cse3)) (.cse7 (= 1 ~a17~0)) (.cse0 (= 1 ~a7~0)) (.cse9 (<= ~a21~0 0)) (.cse1 (<= ~a17~0 0))) (or (not (= 1 |old(~a21~0)|)) (and .cse0 .cse1 (and .cse2 .cse3 .cse4)) (and (and .cse2 .cse3 .cse5) .cse1) (and .cse6 .cse5 .cse7) (not (= 1 |old(~a20~0)|)) (< 0 |old(~a7~0)|) (and (and .cse8 .cse7) .cse5) (and .cse9 .cse2 .cse7) (= 6 |old(~a16~0)|) (and .cse3 .cse4 .cse5 .cse7) (and (and .cse8 .cse5) .cse1) (and (and .cse3 .cse4 .cse5) .cse1) (= 13 |old(~a8~0)|) (and .cse9 .cse2 .cse1) (and (and .cse6 .cse7) .cse0) (not (= 1 |old(~a17~0)|)) (= 4 |old(~a16~0)|) (and .cse9 .cse10 .cse1)))) [2018-12-02 15:18:03,803 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-12-02 15:18:03,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:18:03 BoogieIcfgContainer [2018-12-02 15:18:03,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:18:03,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:18:03,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:18:03,813 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:18:03,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:55" (3/4) ... [2018-12-02 15:18:03,816 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 15:18:03,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 15:18:03,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 15:18:03,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 15:18:03,827 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 15:18:03,828 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 15:18:03,845 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((!(1 == \old(a21)) || ((1 == a7 && a17 <= 0) && (!(a16 == 6) && 1 == a21) && !(a8 == 13))) || (((!(a16 == 6) && 1 == a21) && a7 <= 0) && a17 <= 0)) || ((((1 == a20 && !(a16 == 6)) && 1 == a21) && a7 <= 0) && 1 == a17)) || !(1 == \old(a20))) || 0 < \old(a7)) || ((((1 == a20 && 1 == a21) && !(a16 == 4)) && 1 == a17) && a7 <= 0)) || ((a21 <= 0 && !(a16 == 6)) && 1 == a17)) || 6 == \old(a16)) || (((1 == a21 && !(a8 == 13)) && a7 <= 0) && 1 == a17)) || ((((1 == a20 && 1 == a21) && !(a16 == 4)) && a7 <= 0) && a17 <= 0)) || (((1 == a21 && !(a8 == 13)) && a7 <= 0) && a17 <= 0)) || 13 == \old(a8)) || ((a21 <= 0 && !(a16 == 6)) && a17 <= 0)) || ((((1 == a20 && !(a16 == 6)) && 1 == a21) && 1 == a17) && 1 == a7)) || !(1 == \old(a17))) || 4 == \old(a16)) || ((a21 <= 0 && 1 == a20) && a17 <= 0) [2018-12-02 15:18:03,910 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_285298ea-1820-488e-915d-797a05b6b896/bin-2019/uautomizer/witness.graphml [2018-12-02 15:18:03,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:18:03,911 INFO L168 Benchmark]: Toolchain (without parser) took 9415.25 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 488.6 MB). Free memory was 956.0 MB in the beginning and 1.4 GB in the end (delta: -471.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,912 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:18:03,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.70 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,912 INFO L168 Benchmark]: Boogie Preprocessor took 36.58 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,912 INFO L168 Benchmark]: RCFGBuilder took 555.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.8 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,912 INFO L168 Benchmark]: TraceAbstraction took 8385.37 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 365.4 MB). Free memory was 989.8 MB in the beginning and 1.4 GB in the end (delta: -450.8 MB). Peak memory consumption was 477.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,913 INFO L168 Benchmark]: Witness Printer took 97.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:18:03,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.70 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.58 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 555.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.8 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8385.37 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 365.4 MB). Free memory was 989.8 MB in the beginning and 1.4 GB in the end (delta: -450.8 MB). Peak memory consumption was 477.7 MB. Max. memory is 11.5 GB. * Witness Printer took 97.62 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: 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)) || ((1 == a7 && a17 <= 0) && (!(a16 == 6) && 1 == a21) && !(a8 == 13))) || (((!(a16 == 6) && 1 == a21) && a7 <= 0) && a17 <= 0)) || ((((1 == a20 && !(a16 == 6)) && 1 == a21) && a7 <= 0) && 1 == a17)) || !(1 == \old(a20))) || 0 < \old(a7)) || ((((1 == a20 && 1 == a21) && !(a16 == 4)) && 1 == a17) && a7 <= 0)) || ((a21 <= 0 && !(a16 == 6)) && 1 == a17)) || 6 == \old(a16)) || (((1 == a21 && !(a8 == 13)) && a7 <= 0) && 1 == a17)) || ((((1 == a20 && 1 == a21) && !(a16 == 4)) && a7 <= 0) && a17 <= 0)) || (((1 == a21 && !(a8 == 13)) && a7 <= 0) && a17 <= 0)) || 13 == \old(a8)) || ((a21 <= 0 && !(a16 == 6)) && a17 <= 0)) || ((((1 == a20 && !(a16 == 6)) && 1 == a21) && 1 == a17) && 1 == a7)) || !(1 == \old(a17))) || 4 == \old(a16)) || ((a21 <= 0 && 1 == a20) && a17 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 8.3s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 277 SDtfs, 4197 SDslu, 487 SDs, 0 SdLazy, 7371 SolverSat, 1511 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 788 GetRequests, 695 SyntacticMatches, 5 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3432occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1322 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 174 NumberOfFragments, 883 HoareAnnotationTreeSize, 108 FomulaSimplifications, 30100 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19443 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1762 NumberOfCodeBlocks, 1762 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1750 ConstructedInterpolants, 0 QuantifiedInterpolants, 668592 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1903 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 556/727 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...