./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label26_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label26_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec64944e15cde20ad15af2bd0f0e78efc8184588 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:19:28,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:19:28,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:19:28,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:19:28,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:19:28,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:19:28,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:19:28,838 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:19:28,839 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:19:28,840 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:19:28,841 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:19:28,841 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:19:28,841 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:19:28,842 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:19:28,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:19:28,843 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:19:28,844 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:19:28,845 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:19:28,847 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:19:28,848 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:19:28,848 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:19:28,849 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:19:28,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:19:28,851 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:19:28,851 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:19:28,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:19:28,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:19:28,853 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:19:28,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:19:28,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:19:28,854 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:19:28,855 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:19:28,855 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:19:28,855 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:19:28,855 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:19:28,856 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:19:28,856 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 14:19:28,864 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:19:28,864 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:19:28,865 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:19:28,865 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:19:28,865 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:19:28,865 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:19:28,865 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:19:28,865 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 14:19:28,866 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:19:28,866 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:19:28,866 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 14:19:28,866 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 14:19:28,866 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:19:28,867 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:19:28,867 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:19:28,867 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:19:28,867 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:19:28,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:19:28,867 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:19:28,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:19:28,868 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:19:28,868 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:19:28,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:19:28,868 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:19:28,868 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:19:28,868 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:19:28,869 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:19:28,869 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 14:19:28,870 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:19:28,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:19:28,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 14:19:28,870 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec64944e15cde20ad15af2bd0f0e78efc8184588 [2018-11-23 14:19:28,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:19:28,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:19:28,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:19:28,906 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:19:28,906 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:19:28,907 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label26_true-unreach-call_false-termination.c [2018-11-23 14:19:28,951 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/data/9e7721d9b/f2f925b244b5495497ec39447b52c264/FLAG87fd71c79 [2018-11-23 14:19:29,397 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:19:29,397 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/sv-benchmarks/c/eca-rers2012/Problem02_label26_true-unreach-call_false-termination.c [2018-11-23 14:19:29,406 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/data/9e7721d9b/f2f925b244b5495497ec39447b52c264/FLAG87fd71c79 [2018-11-23 14:19:29,418 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/data/9e7721d9b/f2f925b244b5495497ec39447b52c264 [2018-11-23 14:19:29,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:19:29,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:19:29,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:19:29,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:19:29,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:19:29,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e234a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29, skipping insertion in model container [2018-11-23 14:19:29,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:19:29,465 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:19:29,693 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:19:29,697 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:19:29,763 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:19:29,775 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:19:29,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29 WrapperNode [2018-11-23 14:19:29,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:19:29,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:19:29,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:19:29,777 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:19:29,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:19:29,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:19:29,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:19:29,846 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:19:29,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... [2018-11-23 14:19:29,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:19:29,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:19:29,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:19:29,896 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:19:29,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:19:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 14:19:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:19:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:19:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 14:19:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 14:19:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:19:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:19:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:19:29,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:19:30,834 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:19:30,834 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:19:30,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:30 BoogieIcfgContainer [2018-11-23 14:19:30,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:19:30,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:19:30,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:19:30,846 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:19:30,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:29" (1/3) ... [2018-11-23 14:19:30,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cc9a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:30, skipping insertion in model container [2018-11-23 14:19:30,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:29" (2/3) ... [2018-11-23 14:19:30,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15cc9a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:30, skipping insertion in model container [2018-11-23 14:19:30,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:30" (3/3) ... [2018-11-23 14:19:30,849 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label26_true-unreach-call_false-termination.c [2018-11-23 14:19:30,857 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:19:30,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:19:30,875 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:19:30,903 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:19:30,903 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:19:30,903 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:19:30,903 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:19:30,904 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:19:30,904 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:19:30,904 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:19:30,904 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:19:30,920 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-11-23 14:19:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-23 14:19:30,930 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:30,931 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:30,933 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:30,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:30,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2018-11-23 14:19:30,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:30,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:30,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:30,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:30,980 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:19:31,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:19:31,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:19:31,298 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:31,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:19:31,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:19:31,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:19:31,316 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2018-11-23 14:19:31,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:31,952 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2018-11-23 14:19:31,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:19:31,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2018-11-23 14:19:31,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:31,964 INFO L225 Difference]: With dead ends: 615 [2018-11-23 14:19:31,964 INFO L226 Difference]: Without dead ends: 377 [2018-11-23 14:19:31,967 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:19:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-11-23 14:19:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2018-11-23 14:19:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2018-11-23 14:19:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 619 transitions. [2018-11-23 14:19:32,007 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 619 transitions. Word has length 142 [2018-11-23 14:19:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:32,007 INFO L480 AbstractCegarLoop]: Abstraction has 377 states and 619 transitions. [2018-11-23 14:19:32,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:19:32,008 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 619 transitions. [2018-11-23 14:19:32,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-23 14:19:32,011 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:32,011 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:32,012 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:32,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2018-11-23 14:19:32,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:32,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:32,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:32,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:32,014 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:19:32,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:19:32,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 14:19:32,125 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:32,126 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:19:32,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:19:32,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:19:32,127 INFO L87 Difference]: Start difference. First operand 377 states and 619 transitions. Second operand 6 states. [2018-11-23 14:19:32,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:32,781 INFO L93 Difference]: Finished difference Result 1220 states and 2085 transitions. [2018-11-23 14:19:32,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:19:32,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-11-23 14:19:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:32,787 INFO L225 Difference]: With dead ends: 1220 [2018-11-23 14:19:32,787 INFO L226 Difference]: Without dead ends: 849 [2018-11-23 14:19:32,790 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 [2018-11-23 14:19:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2018-11-23 14:19:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 819. [2018-11-23 14:19:32,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2018-11-23 14:19:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1288 transitions. [2018-11-23 14:19:32,824 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1288 transitions. Word has length 157 [2018-11-23 14:19:32,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:32,825 INFO L480 AbstractCegarLoop]: Abstraction has 819 states and 1288 transitions. [2018-11-23 14:19:32,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:19:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1288 transitions. [2018-11-23 14:19:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-23 14:19:32,828 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:32,829 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:32,829 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:32,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:32,829 INFO L82 PathProgramCache]: Analyzing trace with hash 105434168, now seen corresponding path program 1 times [2018-11-23 14:19:32,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:32,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:32,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:32,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:32,830 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 14:19:32,933 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:32,934 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:32,934 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 166 with the following transitions: [2018-11-23 14:19:32,936 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:32,966 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:32,966 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:33,308 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:19:33,310 INFO L272 AbstractInterpreter]: Visited 143 different actions 143 times. Never merged. Never widened. Performed 1556 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1556 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-11-23 14:19:33,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:33,325 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:19:33,611 INFO L227 lantSequenceWeakener]: Weakened 156 states. On average, predicates are now at 81.34% of their original sizes. [2018-11-23 14:19:33,611 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:19:33,639 INFO L415 sIntCurrentIteration]: We unified 164 AI predicates to 164 [2018-11-23 14:19:33,639 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:19:33,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:33,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-23 14:19:33,640 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:33,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:19:33,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:19:33,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:19:33,641 INFO L87 Difference]: Start difference. First operand 819 states and 1288 transitions. Second operand 6 states. [2018-11-23 14:19:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:35,199 INFO L93 Difference]: Finished difference Result 1780 states and 2795 transitions. [2018-11-23 14:19:35,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:19:35,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2018-11-23 14:19:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:35,202 INFO L225 Difference]: With dead ends: 1780 [2018-11-23 14:19:35,202 INFO L226 Difference]: Without dead ends: 967 [2018-11-23 14:19:35,203 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:19:35,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-11-23 14:19:35,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2018-11-23 14:19:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2018-11-23 14:19:35,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1441 transitions. [2018-11-23 14:19:35,219 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1441 transitions. Word has length 165 [2018-11-23 14:19:35,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:35,219 INFO L480 AbstractCegarLoop]: Abstraction has 965 states and 1441 transitions. [2018-11-23 14:19:35,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:19:35,220 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1441 transitions. [2018-11-23 14:19:35,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-23 14:19:35,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:35,222 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:35,222 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:35,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:35,223 INFO L82 PathProgramCache]: Analyzing trace with hash 810484199, now seen corresponding path program 1 times [2018-11-23 14:19:35,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:35,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:35,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:35,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:35,224 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 14:19:35,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:35,359 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:35,359 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-11-23 14:19:35,360 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:35,364 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:35,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:35,682 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:19:35,682 INFO L272 AbstractInterpreter]: Visited 147 different actions 436 times. Merged at 6 different actions 15 times. Never widened. Performed 4861 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4861 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:35,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:35,689 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:19:35,867 INFO L227 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 85% of their original sizes. [2018-11-23 14:19:35,867 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:19:35,915 INFO L415 sIntCurrentIteration]: We unified 173 AI predicates to 173 [2018-11-23 14:19:35,915 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:19:35,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:35,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-11-23 14:19:35,915 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:35,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:19:35,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:19:35,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:19:35,916 INFO L87 Difference]: Start difference. First operand 965 states and 1441 transitions. Second operand 9 states. [2018-11-23 14:19:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:40,230 INFO L93 Difference]: Finished difference Result 2380 states and 3567 transitions. [2018-11-23 14:19:40,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 14:19:40,231 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 174 [2018-11-23 14:19:40,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:40,234 INFO L225 Difference]: With dead ends: 2380 [2018-11-23 14:19:40,234 INFO L226 Difference]: Without dead ends: 1421 [2018-11-23 14:19:40,236 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-23 14:19:40,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2018-11-23 14:19:40,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1344. [2018-11-23 14:19:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1344 states. [2018-11-23 14:19:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1922 transitions. [2018-11-23 14:19:40,260 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1922 transitions. Word has length 174 [2018-11-23 14:19:40,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:40,261 INFO L480 AbstractCegarLoop]: Abstraction has 1344 states and 1922 transitions. [2018-11-23 14:19:40,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:19:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1922 transitions. [2018-11-23 14:19:40,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-11-23 14:19:40,264 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:40,264 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:40,264 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:40,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:40,264 INFO L82 PathProgramCache]: Analyzing trace with hash 612982551, now seen corresponding path program 1 times [2018-11-23 14:19:40,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:40,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:40,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:40,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:40,265 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:19:40,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:40,353 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:40,353 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-11-23 14:19:40,353 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:40,356 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:40,356 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:40,549 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:19:40,549 INFO L272 AbstractInterpreter]: Visited 146 different actions 286 times. Merged at 4 different actions 4 times. Never widened. Performed 3095 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3095 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-11-23 14:19:40,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:40,573 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:19:40,809 INFO L227 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 81.3% of their original sizes. [2018-11-23 14:19:40,809 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:19:40,856 INFO L415 sIntCurrentIteration]: We unified 172 AI predicates to 172 [2018-11-23 14:19:40,856 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:19:40,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:40,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-23 14:19:40,856 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:40,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:19:40,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:19:40,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:19:40,857 INFO L87 Difference]: Start difference. First operand 1344 states and 1922 transitions. Second operand 10 states. [2018-11-23 14:19:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:42,918 INFO L93 Difference]: Finished difference Result 2978 states and 4231 transitions. [2018-11-23 14:19:42,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 14:19:42,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2018-11-23 14:19:42,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:42,923 INFO L225 Difference]: With dead ends: 2978 [2018-11-23 14:19:42,924 INFO L226 Difference]: Without dead ends: 1640 [2018-11-23 14:19:42,927 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 182 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-23 14:19:42,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2018-11-23 14:19:42,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1637. [2018-11-23 14:19:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1637 states. [2018-11-23 14:19:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2262 transitions. [2018-11-23 14:19:42,961 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2262 transitions. Word has length 173 [2018-11-23 14:19:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:42,961 INFO L480 AbstractCegarLoop]: Abstraction has 1637 states and 2262 transitions. [2018-11-23 14:19:42,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:19:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2262 transitions. [2018-11-23 14:19:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-23 14:19:42,966 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:42,966 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:42,966 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:42,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:42,966 INFO L82 PathProgramCache]: Analyzing trace with hash -393389681, now seen corresponding path program 1 times [2018-11-23 14:19:42,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:42,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:42,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:42,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:42,967 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:19:43,096 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:43,096 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:43,097 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-11-23 14:19:43,097 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:43,100 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:43,100 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:43,383 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:19:43,383 INFO L272 AbstractInterpreter]: Visited 147 different actions 434 times. Merged at 6 different actions 15 times. Never widened. Performed 5093 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5093 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:43,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:43,385 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:19:43,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:43,385 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:19:43,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:43,393 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:19:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:43,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:19:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 14:19:43,518 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:19:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 14:19:43,702 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:43,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 8 [2018-11-23 14:19:43,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:43,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:19:43,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:19:43,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:19:43,703 INFO L87 Difference]: Start difference. First operand 1637 states and 2262 transitions. Second operand 3 states. [2018-11-23 14:19:44,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:44,161 INFO L93 Difference]: Finished difference Result 3903 states and 5641 transitions. [2018-11-23 14:19:44,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:19:44,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2018-11-23 14:19:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:44,169 INFO L225 Difference]: With dead ends: 3903 [2018-11-23 14:19:44,169 INFO L226 Difference]: Without dead ends: 2272 [2018-11-23 14:19:44,173 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 356 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:19:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2018-11-23 14:19:44,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2270. [2018-11-23 14:19:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2018-11-23 14:19:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 3117 transitions. [2018-11-23 14:19:44,216 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 3117 transitions. Word has length 177 [2018-11-23 14:19:44,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:44,216 INFO L480 AbstractCegarLoop]: Abstraction has 2270 states and 3117 transitions. [2018-11-23 14:19:44,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:19:44,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 3117 transitions. [2018-11-23 14:19:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-11-23 14:19:44,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:44,223 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:44,223 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:44,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:44,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1471902149, now seen corresponding path program 1 times [2018-11-23 14:19:44,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:44,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:44,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:44,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:44,224 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:19:44,325 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:44,325 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:44,325 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-11-23 14:19:44,325 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:44,330 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:44,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:44,591 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:19:44,591 INFO L272 AbstractInterpreter]: Visited 147 different actions 434 times. Merged at 6 different actions 15 times. Never widened. Performed 5018 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5018 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:44,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:44,597 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:19:44,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:44,597 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:19:44,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:44,602 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:19:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:44,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:19:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 14:19:44,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:19:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 14:19:44,779 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:44,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-11-23 14:19:44,779 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:44,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:19:44,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:19:44,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:19:44,780 INFO L87 Difference]: Start difference. First operand 2270 states and 3117 transitions. Second operand 3 states. [2018-11-23 14:19:45,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:45,122 INFO L93 Difference]: Finished difference Result 6098 states and 8721 transitions. [2018-11-23 14:19:45,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:19:45,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2018-11-23 14:19:45,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:45,136 INFO L225 Difference]: With dead ends: 6098 [2018-11-23 14:19:45,136 INFO L226 Difference]: Without dead ends: 3834 [2018-11-23 14:19:45,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:19:45,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2018-11-23 14:19:45,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3823. [2018-11-23 14:19:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3823 states. [2018-11-23 14:19:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 4915 transitions. [2018-11-23 14:19:45,212 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 4915 transitions. Word has length 190 [2018-11-23 14:19:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:45,213 INFO L480 AbstractCegarLoop]: Abstraction has 3823 states and 4915 transitions. [2018-11-23 14:19:45,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:19:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 4915 transitions. [2018-11-23 14:19:45,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-11-23 14:19:45,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:45,222 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:45,222 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:45,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:45,222 INFO L82 PathProgramCache]: Analyzing trace with hash -163641562, now seen corresponding path program 1 times [2018-11-23 14:19:45,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:45,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:45,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:45,223 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 69 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 14:19:45,306 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:45,306 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:45,306 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-11-23 14:19:45,307 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [33], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:45,310 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:45,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:45,585 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:19:45,586 INFO L272 AbstractInterpreter]: Visited 148 different actions 439 times. Merged at 7 different actions 17 times. Never widened. Performed 5058 root evaluator evaluations with a maximum evaluation depth of 3. Performed 5058 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:45,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:45,589 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:19:45,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:45,589 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:19:45,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:45,595 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:19:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:45,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:19:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 14:19:45,671 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:19:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-23 14:19:45,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:19:45,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-23 14:19:45,726 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:19:45,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:19:45,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:19:45,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:19:45,727 INFO L87 Difference]: Start difference. First operand 3823 states and 4915 transitions. Second operand 9 states. [2018-11-23 14:19:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:47,519 INFO L93 Difference]: Finished difference Result 11820 states and 16157 transitions. [2018-11-23 14:19:47,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-23 14:19:47,520 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2018-11-23 14:19:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:47,536 INFO L225 Difference]: With dead ends: 11820 [2018-11-23 14:19:47,537 INFO L226 Difference]: Without dead ends: 5141 [2018-11-23 14:19:47,560 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 425 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2018-11-23 14:19:47,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2018-11-23 14:19:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 4927. [2018-11-23 14:19:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4927 states. [2018-11-23 14:19:47,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4927 states to 4927 states and 5775 transitions. [2018-11-23 14:19:47,659 INFO L78 Accepts]: Start accepts. Automaton has 4927 states and 5775 transitions. Word has length 205 [2018-11-23 14:19:47,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:47,660 INFO L480 AbstractCegarLoop]: Abstraction has 4927 states and 5775 transitions. [2018-11-23 14:19:47,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:19:47,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4927 states and 5775 transitions. [2018-11-23 14:19:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-11-23 14:19:47,672 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:47,672 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:47,672 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:47,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:47,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1038506424, now seen corresponding path program 1 times [2018-11-23 14:19:47,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:47,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:47,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:47,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:47,673 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 113 proven. 53 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 14:19:47,855 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:47,855 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:47,855 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-11-23 14:19:47,855 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [301], [306], [308], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:47,858 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:47,858 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:48,150 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:19:48,150 INFO L272 AbstractInterpreter]: Visited 150 different actions 589 times. Merged at 7 different actions 26 times. Never widened. Performed 6897 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6897 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:48,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:48,157 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:19:48,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:48,157 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/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 [2018-11-23 14:19:48,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:48,165 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:19:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:48,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:19:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-23 14:19:48,279 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:19:48,375 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 123 proven. 36 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 14:19:48,399 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:19:48,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15 [2018-11-23 14:19:48,400 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:19:48,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 14:19:48,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 14:19:48,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-11-23 14:19:48,401 INFO L87 Difference]: Start difference. First operand 4927 states and 5775 transitions. Second operand 13 states. [2018-11-23 14:19:49,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:49,767 INFO L93 Difference]: Finished difference Result 13739 states and 17192 transitions. [2018-11-23 14:19:49,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 14:19:49,768 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 261 [2018-11-23 14:19:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:49,786 INFO L225 Difference]: With dead ends: 13739 [2018-11-23 14:19:49,786 INFO L226 Difference]: Without dead ends: 8494 [2018-11-23 14:19:49,796 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 537 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=394, Invalid=1012, Unknown=0, NotChecked=0, Total=1406 [2018-11-23 14:19:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2018-11-23 14:19:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 8382. [2018-11-23 14:19:49,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8382 states. [2018-11-23 14:19:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 9910 transitions. [2018-11-23 14:19:49,900 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 9910 transitions. Word has length 261 [2018-11-23 14:19:49,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:49,900 INFO L480 AbstractCegarLoop]: Abstraction has 8382 states and 9910 transitions. [2018-11-23 14:19:49,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 14:19:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 9910 transitions. [2018-11-23 14:19:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-11-23 14:19:49,912 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:49,913 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:49,913 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:49,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:49,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1846381312, now seen corresponding path program 1 times [2018-11-23 14:19:49,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:49,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:49,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:49,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:49,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 169 proven. 76 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-23 14:19:50,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:50,292 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:50,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 292 with the following transitions: [2018-11-23 14:19:50,293 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [67], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [163], [166], [170], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [301], [306], [308], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:50,295 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:50,295 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:50,404 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 14:19:50,404 INFO L272 AbstractInterpreter]: Visited 149 different actions 296 times. Merged at 6 different actions 9 times. Never widened. Performed 3274 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3274 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-23 14:19:50,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:50,406 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 14:19:50,577 INFO L227 lantSequenceWeakener]: Weakened 285 states. On average, predicates are now at 82.81% of their original sizes. [2018-11-23 14:19:50,577 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 14:19:50,623 INFO L415 sIntCurrentIteration]: We unified 290 AI predicates to 290 [2018-11-23 14:19:50,624 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 14:19:50,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:50,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2018-11-23 14:19:50,624 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:50,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 14:19:50,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 14:19:50,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:19:50,625 INFO L87 Difference]: Start difference. First operand 8382 states and 9910 transitions. Second operand 10 states. [2018-11-23 14:19:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:53,393 INFO L93 Difference]: Finished difference Result 17265 states and 20517 transitions. [2018-11-23 14:19:53,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 14:19:53,393 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 291 [2018-11-23 14:19:53,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:53,415 INFO L225 Difference]: With dead ends: 17265 [2018-11-23 14:19:53,415 INFO L226 Difference]: Without dead ends: 10068 [2018-11-23 14:19:53,426 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 296 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2018-11-23 14:19:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10068 states. [2018-11-23 14:19:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10068 to 10027. [2018-11-23 14:19:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10027 states. [2018-11-23 14:19:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10027 states to 10027 states and 11768 transitions. [2018-11-23 14:19:53,573 INFO L78 Accepts]: Start accepts. Automaton has 10027 states and 11768 transitions. Word has length 291 [2018-11-23 14:19:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:53,573 INFO L480 AbstractCegarLoop]: Abstraction has 10027 states and 11768 transitions. [2018-11-23 14:19:53,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 14:19:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10027 states and 11768 transitions. [2018-11-23 14:19:53,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-11-23 14:19:53,589 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:53,589 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:53,589 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:53,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:53,590 INFO L82 PathProgramCache]: Analyzing trace with hash -789514691, now seen corresponding path program 1 times [2018-11-23 14:19:53,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:53,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:53,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:53,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:53,590 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 171 proven. 84 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-23 14:19:53,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:53,746 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:53,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 295 with the following transitions: [2018-11-23 14:19:53,746 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [56], [61], [63], [64], [67], [68], [72], [76], [80], [84], [88], [92], [96], [99], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [301], [306], [308], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:53,748 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:53,749 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:54,089 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:19:54,089 INFO L272 AbstractInterpreter]: Visited 154 different actions 610 times. Merged at 9 different actions 35 times. Never widened. Performed 7141 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7141 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:54,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:54,101 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:19:54,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:54,101 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:19:54,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:54,107 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:19:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:54,173 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:19:54,314 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-11-23 14:19:54,314 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:19:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 183 proven. 45 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-23 14:19:54,381 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:19:54,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-11-23 14:19:54,381 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:19:54,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 14:19:54,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 14:19:54,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-23 14:19:54,382 INFO L87 Difference]: Start difference. First operand 10027 states and 11768 transitions. Second operand 11 states. [2018-11-23 14:19:54,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:54,920 INFO L93 Difference]: Finished difference Result 18469 states and 22001 transitions. [2018-11-23 14:19:54,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 14:19:54,925 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 294 [2018-11-23 14:19:54,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:54,936 INFO L225 Difference]: With dead ends: 18469 [2018-11-23 14:19:54,936 INFO L226 Difference]: Without dead ends: 8665 [2018-11-23 14:19:54,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 590 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2018-11-23 14:19:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8665 states. [2018-11-23 14:19:55,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8665 to 8601. [2018-11-23 14:19:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8601 states. [2018-11-23 14:19:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8601 states to 8601 states and 9625 transitions. [2018-11-23 14:19:55,041 INFO L78 Accepts]: Start accepts. Automaton has 8601 states and 9625 transitions. Word has length 294 [2018-11-23 14:19:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:55,042 INFO L480 AbstractCegarLoop]: Abstraction has 8601 states and 9625 transitions. [2018-11-23 14:19:55,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 14:19:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8601 states and 9625 transitions. [2018-11-23 14:19:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-23 14:19:55,051 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:19:55,052 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:19:55,052 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:19:55,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:55,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2018-11-23 14:19:55,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:19:55,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:55,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:55,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:19:55,053 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:19:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 247 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:19:55,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:55,235 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:19:55,235 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-11-23 14:19:55,235 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [236], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [301], [306], [308], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [659], [667], [675], [683], [691], [699], [707], [715], [723], [731], [739], [747], [755], [763], [771], [779], [787], [795], [803], [811], [815], [817], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-11-23 14:19:55,237 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:19:55,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:19:55,478 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:19:55,478 INFO L272 AbstractInterpreter]: Visited 150 different actions 589 times. Merged at 7 different actions 26 times. Never widened. Performed 6907 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6907 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 6 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-23 14:19:55,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:19:55,480 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:19:55,480 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:19:55,480 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:19:55,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:19:55,486 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:19:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:19:55,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:19:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-11-23 14:19:55,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:19:55,685 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-11-23 14:19:55,709 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:19:55,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [10] total 11 [2018-11-23 14:19:55,709 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:19:55,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:19:55,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:19:55,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:19:55,710 INFO L87 Difference]: Start difference. First operand 8601 states and 9625 transitions. Second operand 3 states. [2018-11-23 14:19:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:19:56,075 INFO L93 Difference]: Finished difference Result 10297 states and 11418 transitions. [2018-11-23 14:19:56,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:19:56,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2018-11-23 14:19:56,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:19:56,077 INFO L225 Difference]: With dead ends: 10297 [2018-11-23 14:19:56,077 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:19:56,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:19:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:19:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:19:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:19:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:19:56,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2018-11-23 14:19:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:19:56,086 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:19:56,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:19:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:19:56,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:19:56,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:19:56,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,302 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 131 [2018-11-23 14:19:56,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 14:19:56,470 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 112 [2018-11-23 14:19:57,425 WARN L180 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 78 [2018-11-23 14:19:57,841 WARN L180 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 63 [2018-11-23 14:19:58,157 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 66 [2018-11-23 14:19:58,158 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:19:58,158 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= ~a11~0 |old(~a11~0)|) (= |old(~a17~0)| ~a17~0) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) [2018-11-23 14:19:58,158 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-11-23 14:19:58,159 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-11-23 14:19:58,160 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-11-23 14:19:58,161 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-11-23 14:19:58,162 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,163 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-11-23 14:19:58,164 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-11-23 14:19:58,165 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,166 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-11-23 14:19:58,167 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-11-23 14:19:58,168 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse24 (= |old(~a17~0)| ~a17~0)) (.cse26 (= ~a11~0 1)) (.cse23 (= |old(~a19~0)| ~a19~0)) (.cse14 (= ~a11~0 |old(~a11~0)|)) (.cse28 (= ~a11~0 0)) (.cse15 (= ~a17~0 8)) (.cse16 (= ~a19~0 1)) (.cse25 (= ~a28~0 |old(~a28~0)|)) (.cse17 (= ~a25~0 |old(~a25~0)|))) (let ((.cse3 (and .cse28 .cse15 .cse16 .cse25 .cse17)) (.cse4 (= 0 |old(~a28~0)|)) (.cse18 (and (<= ~a17~0 |old(~a17~0)|) .cse23 .cse14 .cse17)) (.cse20 (< 7 |old(~a17~0)|)) (.cse10 (= 10 |old(~a28~0)|)) (.cse13 (< 7 |old(~a28~0)|)) (.cse21 (and .cse24 .cse23 .cse25 .cse26 .cse17)) (.cse22 (< 8 |old(~a17~0)|)) (.cse6 (not (= 0 |old(~a11~0)|))) (.cse27 (and .cse23 .cse28 .cse15 .cse25 .cse17)) (.cse19 (< 0 |old(~a19~0)|)) (.cse0 (< 10 |old(~a28~0)|)) (.cse1 (not (= 1 ~a21~0))) (.cse9 (not (= 1 |old(~a25~0)|))) (.cse2 (not (= 1 |old(~a19~0)|))) (.cse5 (= 8 |old(~a28~0)|)) (.cse11 (and .cse15 .cse16 .cse25 .cse26 .cse17)) (.cse7 (not (= 8 |old(~a17~0)|))) (.cse8 (= |calculate_output_#in~input| 0)) (.cse12 (not (= 1 |old(~a11~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse1 .cse9 .cse6 .cse3 .cse8 .cse2 .cse4 .cse7) (or .cse0 .cse1 .cse2 .cse4 .cse10 .cse5 .cse7 .cse11 .cse8 .cse12) (or .cse1 .cse13 .cse9 .cse2 (and (<= ~a28~0 7) .cse14 (not (= ~a28~0 0)) .cse15 .cse16 .cse17) .cse4 .cse7 .cse8) (or .cse18 .cse19 .cse20) (or .cse13 .cse9 .cse21 .cse22 .cse12) (or .cse5 (and .cse23 .cse24 .cse25 .cse26 .cse17) .cse12 .cse20) (or (and .cse23 .cse14 .cse24 .cse25 .cse17) .cse10 .cse5 .cse20) (or .cse18 .cse9 .cse20) (or .cse0 .cse1 .cse27 .cse10 .cse6 .cse7 .cse19) (or .cse13 .cse21 .cse19 .cse22 .cse12) (or .cse0 .cse1 .cse9 .cse6 .cse27 .cse7 .cse19) (or .cse0 .cse1 .cse9 .cse2 .cse5 .cse11 .cse7 .cse8 .cse12)))) [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-23 14:19:58,169 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-11-23 14:19:58,170 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-11-23 14:19:58,171 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:19:58,172 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-11-23 14:19:58,172 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:19:58,172 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:19:58,172 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a11~0)|)) (and (= ~a11~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-23 14:19:58,172 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse9 (not (= ~a28~0 10))) (.cse1 (= ~a11~0 0)) (.cse2 (not (= ~a28~0 0))) (.cse7 (= ~a17~0 8)) (.cse5 (<= ~a19~0 0)) (.cse11 (<= ~a17~0 7)) (.cse8 (not (= ~a28~0 8))) (.cse6 (<= ~a28~0 10)) (.cse3 (= ~a19~0 1)) (.cse12 (<= ~a28~0 7)) (.cse0 (= 1 ~a25~0)) (.cse4 (<= ~a17~0 8)) (.cse10 (= ~a11~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 1 ~a21~0)) (and .cse1 (and .cse5 .cse0) .cse6 .cse7) (and .cse8 .cse6 .cse9 .cse2 .cse3 .cse4 .cse10) (not (= 7 |old(~a28~0)|)) (and .cse11 .cse8 .cse9) (and .cse1 .cse5 .cse6 .cse7 .cse9) (not (= 0 |old(~a11~0)|)) (and .cse11 .cse8 .cse10) (and (and .cse1 (and .cse2 .cse8 .cse7 .cse3)) .cse6) (and .cse11 .cse5 (not (= ~a19~0 ~a11~0))) (and .cse12 .cse2 .cse0 .cse7 .cse3) (and .cse5 .cse12 .cse4 .cse10) (not (= 0 |old(~a25~0)|)) (and .cse11 .cse0) (and .cse0 .cse8 .cse6 .cse3 .cse4 .cse10) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse12 .cse0 .cse4 .cse10))) [2018-11-23 14:19:58,172 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-11-23 14:19:58,172 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-11-23 14:19:58,172 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 0)) (.cse9 (<= ~a17~0 7)) (.cse11 (not (= ~a28~0 10))) (.cse5 (not (= main_~input~0 0))) (.cse10 (not (= ~a28~0 8))) (.cse3 (<= ~a28~0 10)) (.cse0 (= ~a11~0 0)) (.cse7 (not (= ~a28~0 0))) (.cse4 (= ~a17~0 8)) (.cse8 (= ~a19~0 1)) (.cse6 (<= ~a28~0 7)) (.cse2 (= 1 ~a25~0)) (.cse13 (<= ~a17~0 8)) (.cse12 (= ~a11~0 1))) (or (not (= 1 ~a21~0)) (and .cse0 (and .cse1 .cse2) .cse3 .cse4) (not (= 7 |old(~a28~0)|)) (and .cse5 .cse6 .cse7 .cse2 .cse4 .cse8) (and .cse9 .cse10 .cse11) (not (= 0 |old(~a11~0)|)) (and .cse0 .cse1 .cse3 .cse4 .cse11) (and .cse9 .cse10 .cse12) (and .cse5 .cse2 .cse0 .cse7 .cse8 .cse13) (and .cse9 .cse1 (not (= ~a19~0 ~a11~0))) (and .cse1 .cse6 .cse13 .cse12) (not (= 0 |old(~a25~0)|)) (and .cse9 .cse2) (and (and .cse5 .cse10 .cse2 .cse4 .cse8) .cse3 .cse12) (and (and .cse5 .cse7 .cse10 .cse8 .cse13) .cse3 .cse12 .cse11) (not (= 1 |old(~a19~0)|)) (and .cse5 .cse10 .cse3 .cse0 .cse7 .cse4 .cse8) (not (= 8 |old(~a17~0)|)) (and .cse6 .cse2 .cse13 .cse12))) [2018-11-23 14:19:58,172 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-11-23 14:19:58,172 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-11-23 14:19:58,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:19:58 BoogieIcfgContainer [2018-11-23 14:19:58,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:19:58,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:19:58,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:19:58,183 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:19:58,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:30" (3/4) ... [2018-11-23 14:19:58,186 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:19:58,189 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:19:58,190 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 14:19:58,190 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:19:58,199 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 14:19:58,200 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:19:58,224 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((1 == a25 && a11 == 0) && !(a28 == 0)) && a19 == 1) && a17 <= 8) || !(1 == a21)) || (((a11 == 0 && a19 <= 0 && 1 == a25) && a28 <= 10) && a17 == 8)) || ((((((!(a28 == 8) && a28 <= 10) && !(a28 == 10)) && !(a28 == 0)) && a19 == 1) && a17 <= 8) && a11 == 1)) || !(7 == \old(a28))) || ((a17 <= 7 && !(a28 == 8)) && !(a28 == 10))) || ((((a11 == 0 && a19 <= 0) && a28 <= 10) && a17 == 8) && !(a28 == 10))) || !(0 == \old(a11))) || ((a17 <= 7 && !(a28 == 8)) && a11 == 1)) || ((a11 == 0 && ((!(a28 == 0) && !(a28 == 8)) && a17 == 8) && a19 == 1) && a28 <= 10)) || ((a17 <= 7 && a19 <= 0) && !(a19 == a11))) || ((((a28 <= 7 && !(a28 == 0)) && 1 == a25) && a17 == 8) && a19 == 1)) || (((a19 <= 0 && a28 <= 7) && a17 <= 8) && a11 == 1)) || !(0 == \old(a25))) || (a17 <= 7 && 1 == a25)) || (((((1 == a25 && !(a28 == 8)) && a28 <= 10) && a19 == 1) && a17 <= 8) && a11 == 1)) || !(1 == \old(a19))) || !(8 == \old(a17))) || (((a28 <= 7 && 1 == a25) && a17 <= 8) && a11 == 1) [2018-11-23 14:19:58,282 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3339b6de-c82d-4a71-9e2c-57ba19da2f78/bin-2019/utaipan/witness.graphml [2018-11-23 14:19:58,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:19:58,282 INFO L168 Benchmark]: Toolchain (without parser) took 28861.59 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 955.5 MB in the beginning and 1.9 GB in the end (delta: -903.0 MB). Peak memory consumption was 718.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:19:58,283 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:19:58,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.41 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 925.8 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:19:58,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 925.8 MB in the beginning and 1.1 GB in the end (delta: -212.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:19:58,283 INFO L168 Benchmark]: Boogie Preprocessor took 50.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:19:58,284 INFO L168 Benchmark]: RCFGBuilder took 939.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:19:58,284 INFO L168 Benchmark]: TraceAbstraction took 27346.50 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: -832.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. [2018-11-23 14:19:58,284 INFO L168 Benchmark]: Witness Printer took 99.54 ms. Allocated memory is still 2.7 GB. Free memory is still 1.9 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:19:58,285 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 354.41 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 925.8 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 925.8 MB in the beginning and 1.1 GB in the end (delta: -212.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.00 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 939.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27346.50 ms. Allocated memory was 1.2 GB in the beginning and 2.7 GB in the end (delta: 1.5 GB). Free memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: -832.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 11.5 GB. * Witness Printer took 99.54 ms. Allocated memory is still 2.7 GB. Free memory is still 1.9 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((((((((((((((1 == a25 && a11 == 0) && !(a28 == 0)) && a19 == 1) && a17 <= 8) || !(1 == a21)) || (((a11 == 0 && a19 <= 0 && 1 == a25) && a28 <= 10) && a17 == 8)) || ((((((!(a28 == 8) && a28 <= 10) && !(a28 == 10)) && !(a28 == 0)) && a19 == 1) && a17 <= 8) && a11 == 1)) || !(7 == \old(a28))) || ((a17 <= 7 && !(a28 == 8)) && !(a28 == 10))) || ((((a11 == 0 && a19 <= 0) && a28 <= 10) && a17 == 8) && !(a28 == 10))) || !(0 == \old(a11))) || ((a17 <= 7 && !(a28 == 8)) && a11 == 1)) || ((a11 == 0 && ((!(a28 == 0) && !(a28 == 8)) && a17 == 8) && a19 == 1) && a28 <= 10)) || ((a17 <= 7 && a19 <= 0) && !(a19 == a11))) || ((((a28 <= 7 && !(a28 == 0)) && 1 == a25) && a17 == 8) && a19 == 1)) || (((a19 <= 0 && a28 <= 7) && a17 <= 8) && a11 == 1)) || !(0 == \old(a25))) || (a17 <= 7 && 1 == a25)) || (((((1 == a25 && !(a28 == 8)) && a28 <= 10) && a19 == 1) && a17 <= 8) && a11 == 1)) || !(1 == \old(a19))) || !(8 == \old(a17))) || (((a28 <= 7 && 1 == a25) && a17 <= 8) && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 27.2s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 17.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2130 SDtfs, 8947 SDslu, 2356 SDs, 0 SdLazy, 13068 SolverSat, 2472 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 3855 GetRequests, 3673 SyntacticMatches, 11 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10027occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 10 AbstIntIterations, 4 AbstIntStrong, 0.9971493941272493 AbsIntWeakeningRatio, 0.1964956195244055 AbsIntAvgWeakeningVarsNumRemoved, 26.67584480600751 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 556 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 293 PreInvPairs, 417 NumberOfFragments, 1032 HoareAnnotationTreeSize, 293 FomulaSimplifications, 12291 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5555 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 3966 NumberOfCodeBlocks, 3966 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 5374 ConstructedInterpolants, 0 QuantifiedInterpolants, 3268058 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3233 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 24 InterpolantComputations, 8 PerfectInterpolantSequences, 2844/3234 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...