./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label19_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label19_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/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 e94bad701dc31ef8837df5dc0d8bbaaa41b948fd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:54:47,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:54:47,561 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:54:47,567 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:54:47,567 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:54:47,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:54:47,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:54:47,569 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:54:47,570 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:54:47,571 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:54:47,571 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:54:47,571 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:54:47,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:54:47,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:54:47,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:54:47,573 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:54:47,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:54:47,574 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:54:47,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:54:47,576 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:54:47,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:54:47,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:54:47,578 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:54:47,578 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:54:47,578 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:54:47,579 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:54:47,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:54:47,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:54:47,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:54:47,580 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:54:47,580 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:54:47,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:54:47,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:54:47,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:54:47,581 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:54:47,582 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:54:47,582 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:54:47,589 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:54:47,589 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:54:47,589 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:54:47,589 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:54:47,590 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:54:47,590 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:54:47,591 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:54:47,591 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:54:47,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:54:47,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:54:47,592 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:54:47,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:54:47,593 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:54:47,593 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_96baa090-d12b-4aa7-9554-738a545b69fe/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 -> e94bad701dc31ef8837df5dc0d8bbaaa41b948fd [2018-12-09 18:54:47,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:54:47,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:54:47,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:54:47,623 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:54:47,624 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:54:47,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label19_true-unreach-call_false-termination.c [2018-12-09 18:54:47,661 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/data/832d6a15a/f7f7b449ec314dae9497bad8c29e2f97/FLAGf95b34642 [2018-12-09 18:54:48,032 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:54:48,032 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/sv-benchmarks/c/eca-rers2012/Problem02_label19_true-unreach-call_false-termination.c [2018-12-09 18:54:48,038 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/data/832d6a15a/f7f7b449ec314dae9497bad8c29e2f97/FLAGf95b34642 [2018-12-09 18:54:48,400 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/data/832d6a15a/f7f7b449ec314dae9497bad8c29e2f97 [2018-12-09 18:54:48,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:54:48,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:54:48,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:54:48,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:54:48,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:54:48,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1e910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48, skipping insertion in model container [2018-12-09 18:54:48,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:54:48,440 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:54:48,639 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:54:48,642 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:54:48,723 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:54:48,733 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:54:48,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48 WrapperNode [2018-12-09 18:54:48,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:54:48,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:54:48,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:54:48,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:54:48,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:54:48,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:54:48,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:54:48,753 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:54:48,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... [2018-12-09 18:54:48,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:54:48,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:54:48,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:54:48,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:54:48,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:54:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:54:48,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:54:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-09 18:54:48,831 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-09 18:54:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:54:48,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:54:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:54:48,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:54:49,423 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:54:49,423 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 18:54:49,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:54:49 BoogieIcfgContainer [2018-12-09 18:54:49,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:54:49,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:54:49,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:54:49,426 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:54:49,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:54:48" (1/3) ... [2018-12-09 18:54:49,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fec4e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:54:49, skipping insertion in model container [2018-12-09 18:54:49,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:54:48" (2/3) ... [2018-12-09 18:54:49,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fec4e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:54:49, skipping insertion in model container [2018-12-09 18:54:49,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:54:49" (3/3) ... [2018-12-09 18:54:49,429 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label19_true-unreach-call_false-termination.c [2018-12-09 18:54:49,436 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:54:49,443 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:54:49,453 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:54:49,477 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:54:49,478 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:54:49,478 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:54:49,478 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:54:49,478 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:54:49,478 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:54:49,478 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:54:49,478 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:54:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2018-12-09 18:54:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-12-09 18:54:49,498 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:54:49,499 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] [2018-12-09 18:54:49,501 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:54:49,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:49,504 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2018-12-09 18:54:49,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:54:49,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:49,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:49,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:49,536 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:54:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:54:49,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:54:49,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 18:54:49,768 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:54:49,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 18:54:49,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 18:54:49,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:54:49,782 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 4 states. [2018-12-09 18:54:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:54:50,484 INFO L93 Difference]: Finished difference Result 791 states and 1379 transitions. [2018-12-09 18:54:50,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 18:54:50,485 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2018-12-09 18:54:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:54:50,493 INFO L225 Difference]: With dead ends: 791 [2018-12-09 18:54:50,494 INFO L226 Difference]: Without dead ends: 474 [2018-12-09 18:54:50,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:54:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2018-12-09 18:54:50,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 320. [2018-12-09 18:54:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2018-12-09 18:54:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 472 transitions. [2018-12-09 18:54:50,535 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 472 transitions. Word has length 98 [2018-12-09 18:54:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:54:50,536 INFO L480 AbstractCegarLoop]: Abstraction has 320 states and 472 transitions. [2018-12-09 18:54:50,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 18:54:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 472 transitions. [2018-12-09 18:54:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-12-09 18:54:50,539 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:54:50,539 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:54:50,539 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:54:50,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:50,540 INFO L82 PathProgramCache]: Analyzing trace with hash -553213703, now seen corresponding path program 1 times [2018-12-09 18:54:50,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:54:50,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:50,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:50,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:50,541 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:54:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 18:54:50,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:50,642 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:54:50,643 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-12-09 18:54:50,644 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [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], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:54:50,668 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:54:50,668 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:54:50,883 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 18:54:50,884 INFO L272 AbstractInterpreter]: Visited 98 different actions 98 times. Never merged. Never widened. Performed 1157 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1157 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 38 variables. [2018-12-09 18:54:50,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:50,892 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 18:54:51,099 INFO L227 lantSequenceWeakener]: Weakened 100 states. On average, predicates are now at 80.51% of their original sizes. [2018-12-09 18:54:51,099 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 18:54:51,119 INFO L418 sIntCurrentIteration]: We unified 105 AI predicates to 105 [2018-12-09 18:54:51,119 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 18:54:51,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:54:51,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-12-09 18:54:51,120 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:54:51,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:54:51,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:54:51,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:54:51,121 INFO L87 Difference]: Start difference. First operand 320 states and 472 transitions. Second operand 6 states. [2018-12-09 18:54:52,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:54:52,958 INFO L93 Difference]: Finished difference Result 782 states and 1156 transitions. [2018-12-09 18:54:52,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:54:52,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-12-09 18:54:52,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:54:52,959 INFO L225 Difference]: With dead ends: 782 [2018-12-09 18:54:52,959 INFO L226 Difference]: Without dead ends: 468 [2018-12-09 18:54:52,960 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:54:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2018-12-09 18:54:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 466. [2018-12-09 18:54:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2018-12-09 18:54:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 626 transitions. [2018-12-09 18:54:52,973 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 626 transitions. Word has length 106 [2018-12-09 18:54:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:54:52,974 INFO L480 AbstractCegarLoop]: Abstraction has 466 states and 626 transitions. [2018-12-09 18:54:52,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:54:52,974 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 626 transitions. [2018-12-09 18:54:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-12-09 18:54:52,976 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:54:52,976 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 18:54:52,977 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:54:52,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:52,977 INFO L82 PathProgramCache]: Analyzing trace with hash -709344313, now seen corresponding path program 1 times [2018-12-09 18:54:52,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:54:52,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:52,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:52,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:52,978 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:54:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:54:53,092 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:53,092 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:54:53,093 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 112 with the following transitions: [2018-12-09 18:54:53,093 INFO L205 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], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:54:53,096 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:54:53,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:54:53,273 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 18:54:53,273 INFO L272 AbstractInterpreter]: Visited 101 different actions 196 times. Merged at 4 different actions 4 times. Never widened. Performed 2332 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2332 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-12-09 18:54:53,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:53,277 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 18:54:53,372 INFO L227 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 82.17% of their original sizes. [2018-12-09 18:54:53,372 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 18:54:53,428 INFO L418 sIntCurrentIteration]: We unified 110 AI predicates to 110 [2018-12-09 18:54:53,428 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 18:54:53,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:54:53,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-12-09 18:54:53,429 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:54:53,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 18:54:53,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 18:54:53,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 18:54:53,429 INFO L87 Difference]: Start difference. First operand 466 states and 626 transitions. Second operand 10 states. [2018-12-09 18:54:55,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:54:55,857 INFO L93 Difference]: Finished difference Result 1371 states and 1933 transitions. [2018-12-09 18:54:55,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 18:54:55,857 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2018-12-09 18:54:55,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:54:55,859 INFO L225 Difference]: With dead ends: 1371 [2018-12-09 18:54:55,859 INFO L226 Difference]: Without dead ends: 911 [2018-12-09 18:54:55,860 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-12-09 18:54:55,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2018-12-09 18:54:55,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 906. [2018-12-09 18:54:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2018-12-09 18:54:55,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1150 transitions. [2018-12-09 18:54:55,876 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1150 transitions. Word has length 111 [2018-12-09 18:54:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:54:55,876 INFO L480 AbstractCegarLoop]: Abstraction has 906 states and 1150 transitions. [2018-12-09 18:54:55,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 18:54:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1150 transitions. [2018-12-09 18:54:55,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-12-09 18:54:55,878 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:54:55,878 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-12-09 18:54:55,878 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:54:55,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:55,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1854908586, now seen corresponding path program 1 times [2018-12-09 18:54:55,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:54:55,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:55,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:55,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:55,879 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:54:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:54:55,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:55,967 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:54:55,967 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-12-09 18:54:55,967 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [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], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:54:55,970 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:54:55,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:54:56,128 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 18:54:56,128 INFO L272 AbstractInterpreter]: Visited 102 different actions 299 times. Merged at 6 different actions 13 times. Never widened. Performed 3567 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3567 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-09 18:54:56,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:56,133 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 18:54:56,217 INFO L227 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 84.03% of their original sizes. [2018-12-09 18:54:56,217 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 18:54:56,264 INFO L418 sIntCurrentIteration]: We unified 114 AI predicates to 114 [2018-12-09 18:54:56,264 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 18:54:56,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:54:56,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-12-09 18:54:56,265 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:54:56,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 18:54:56,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 18:54:56,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:54:56,266 INFO L87 Difference]: Start difference. First operand 906 states and 1150 transitions. Second operand 9 states. [2018-12-09 18:54:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:54:58,205 INFO L93 Difference]: Finished difference Result 2129 states and 2790 transitions. [2018-12-09 18:54:58,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 18:54:58,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2018-12-09 18:54:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:54:58,213 INFO L225 Difference]: With dead ends: 2129 [2018-12-09 18:54:58,213 INFO L226 Difference]: Without dead ends: 1229 [2018-12-09 18:54:58,216 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-12-09 18:54:58,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-12-09 18:54:58,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1207. [2018-12-09 18:54:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2018-12-09 18:54:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1527 transitions. [2018-12-09 18:54:58,253 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1527 transitions. Word has length 115 [2018-12-09 18:54:58,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:54:58,254 INFO L480 AbstractCegarLoop]: Abstraction has 1207 states and 1527 transitions. [2018-12-09 18:54:58,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 18:54:58,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1527 transitions. [2018-12-09 18:54:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-12-09 18:54:58,257 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:54:58,257 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, 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] [2018-12-09 18:54:58,257 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:54:58,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:58,258 INFO L82 PathProgramCache]: Analyzing trace with hash 411969091, now seen corresponding path program 1 times [2018-12-09 18:54:58,258 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:54:58,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:58,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:58,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:58,259 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:54:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:54:58,331 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:58,331 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:54:58,331 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-12-09 18:54:58,332 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [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], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:54:58,333 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:54:58,334 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:54:58,454 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:54:58,454 INFO L272 AbstractInterpreter]: Visited 103 different actions 302 times. Merged at 6 different actions 15 times. Never widened. Performed 3652 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3652 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-12-09 18:54:58,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:58,456 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:54:58,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:58,456 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:54:58,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:58,463 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:54:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:58,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:54:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:54:58,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:54:58,602 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:54:58,628 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:54:58,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-09 18:54:58,628 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:54:58,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 18:54:58,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 18:54:58,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 18:54:58,629 INFO L87 Difference]: Start difference. First operand 1207 states and 1527 transitions. Second operand 9 states. [2018-12-09 18:54:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:54:59,199 INFO L93 Difference]: Finished difference Result 3052 states and 4001 transitions. [2018-12-09 18:54:59,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 18:54:59,200 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 142 [2018-12-09 18:54:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:54:59,204 INFO L225 Difference]: With dead ends: 3052 [2018-12-09 18:54:59,205 INFO L226 Difference]: Without dead ends: 1851 [2018-12-09 18:54:59,207 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 280 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-12-09 18:54:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2018-12-09 18:54:59,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1821. [2018-12-09 18:54:59,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1821 states. [2018-12-09 18:54:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2337 transitions. [2018-12-09 18:54:59,237 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2337 transitions. Word has length 142 [2018-12-09 18:54:59,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:54:59,237 INFO L480 AbstractCegarLoop]: Abstraction has 1821 states and 2337 transitions. [2018-12-09 18:54:59,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 18:54:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2337 transitions. [2018-12-09 18:54:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-12-09 18:54:59,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:54:59,240 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:54:59,240 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:54:59,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:59,240 INFO L82 PathProgramCache]: Analyzing trace with hash 816836470, now seen corresponding path program 1 times [2018-12-09 18:54:59,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:54:59,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:59,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:59,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:54:59,241 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:54:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 18:54:59,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:59,332 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:54:59,332 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-12-09 18:54:59,333 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:54:59,335 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:54:59,335 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:54:59,473 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:54:59,473 INFO L272 AbstractInterpreter]: Visited 104 different actions 306 times. Merged at 7 different actions 16 times. Never widened. Performed 3796 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3796 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-09 18:54:59,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:54:59,477 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:54:59,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:54:59,477 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:54:59,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:54:59,483 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:54:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:54:59,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:54:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 18:54:59,568 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:54:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 18:54:59,637 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:54:59,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 14 [2018-12-09 18:54:59,637 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:54:59,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 18:54:59,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 18:54:59,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-12-09 18:54:59,638 INFO L87 Difference]: Start difference. First operand 1821 states and 2337 transitions. Second operand 11 states. [2018-12-09 18:55:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:02,398 INFO L93 Difference]: Finished difference Result 6115 states and 8312 transitions. [2018-12-09 18:55:02,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-09 18:55:02,399 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 143 [2018-12-09 18:55:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:02,406 INFO L225 Difference]: With dead ends: 6115 [2018-12-09 18:55:02,406 INFO L226 Difference]: Without dead ends: 3560 [2018-12-09 18:55:02,409 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 297 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2018-12-09 18:55:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2018-12-09 18:55:02,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 2688. [2018-12-09 18:55:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2688 states. [2018-12-09 18:55:02,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3203 transitions. [2018-12-09 18:55:02,445 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3203 transitions. Word has length 143 [2018-12-09 18:55:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:02,446 INFO L480 AbstractCegarLoop]: Abstraction has 2688 states and 3203 transitions. [2018-12-09 18:55:02,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 18:55:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3203 transitions. [2018-12-09 18:55:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-12-09 18:55:02,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:02,449 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:55:02,449 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:02,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:02,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1586788567, now seen corresponding path program 1 times [2018-12-09 18:55:02,449 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:02,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:02,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:02,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:02,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 62 proven. 25 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-09 18:55:02,521 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:55:02,521 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:55:02,522 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-12-09 18:55:02,522 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:55:02,523 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:55:02,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:55:02,740 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:55:02,740 INFO L272 AbstractInterpreter]: Visited 105 different actions 526 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Performed 6331 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6331 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 14 fixpoints after 3 different actions. Largest state had 38 variables. [2018-12-09 18:55:02,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:02,745 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:55:02,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:55:02,745 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 18:55:02,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:02,751 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:55:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:02,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-12-09 18:55:02,829 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:55:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 79 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-09 18:55:02,893 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:55:02,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-12-09 18:55:02,893 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:55:02,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 18:55:02,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 18:55:02,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-12-09 18:55:02,894 INFO L87 Difference]: Start difference. First operand 2688 states and 3203 transitions. Second operand 12 states. [2018-12-09 18:55:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:04,766 INFO L93 Difference]: Finished difference Result 6776 states and 8193 transitions. [2018-12-09 18:55:04,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-12-09 18:55:04,766 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 163 [2018-12-09 18:55:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:04,776 INFO L225 Difference]: With dead ends: 6776 [2018-12-09 18:55:04,776 INFO L226 Difference]: Without dead ends: 4094 [2018-12-09 18:55:04,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 349 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=563, Invalid=1789, Unknown=0, NotChecked=0, Total=2352 [2018-12-09 18:55:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2018-12-09 18:55:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 3484. [2018-12-09 18:55:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3484 states. [2018-12-09 18:55:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 3973 transitions. [2018-12-09 18:55:04,836 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 3973 transitions. Word has length 163 [2018-12-09 18:55:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:04,836 INFO L480 AbstractCegarLoop]: Abstraction has 3484 states and 3973 transitions. [2018-12-09 18:55:04,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 18:55:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 3973 transitions. [2018-12-09 18:55:04,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-12-09 18:55:04,840 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:04,840 INFO L402 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:55:04,840 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:04,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:04,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1320998409, now seen corresponding path program 1 times [2018-12-09 18:55:04,840 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:04,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:04,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:04,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:04,841 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-09 18:55:04,960 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:55:04,960 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:55:04,960 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-12-09 18:55:04,960 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [50], [52], [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], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:55:04,961 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:55:04,961 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:55:05,082 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 18:55:05,082 INFO L272 AbstractInterpreter]: Visited 105 different actions 307 times. Merged at 7 different actions 16 times. Never widened. Performed 3646 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3646 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-12-09 18:55:05,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:05,086 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 18:55:05,215 INFO L227 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 84.27% of their original sizes. [2018-12-09 18:55:05,215 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 18:55:05,253 INFO L418 sIntCurrentIteration]: We unified 210 AI predicates to 210 [2018-12-09 18:55:05,253 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 18:55:05,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 18:55:05,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-12-09 18:55:05,253 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:55:05,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 18:55:05,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 18:55:05,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-12-09 18:55:05,254 INFO L87 Difference]: Start difference. First operand 3484 states and 3973 transitions. Second operand 11 states. [2018-12-09 18:55:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:10,950 INFO L93 Difference]: Finished difference Result 8773 states and 10139 transitions. [2018-12-09 18:55:10,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-09 18:55:10,950 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2018-12-09 18:55:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:10,963 INFO L225 Difference]: With dead ends: 8773 [2018-12-09 18:55:10,963 INFO L226 Difference]: Without dead ends: 5439 [2018-12-09 18:55:10,967 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2018-12-09 18:55:10,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2018-12-09 18:55:11,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5277. [2018-12-09 18:55:11,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5277 states. [2018-12-09 18:55:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 5944 transitions. [2018-12-09 18:55:11,026 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 5944 transitions. Word has length 211 [2018-12-09 18:55:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:11,026 INFO L480 AbstractCegarLoop]: Abstraction has 5277 states and 5944 transitions. [2018-12-09 18:55:11,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 18:55:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 5944 transitions. [2018-12-09 18:55:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-12-09 18:55:11,031 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:11,031 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:55:11,031 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:11,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:11,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1924915159, now seen corresponding path program 1 times [2018-12-09 18:55:11,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:11,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:11,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:11,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:11,032 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 187 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-09 18:55:11,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:55:11,125 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 18:55:11,125 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-12-09 18:55:11,126 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [41], [42], [53], [64], [68], [72], [76], [80], [84], [88], [91], [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], [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], [463], [465], [863], [867], [876], [880], [882], [887], [888], [889], [891], [892] [2018-12-09 18:55:11,127 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 18:55:11,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 18:55:11,348 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 18:55:11,348 INFO L272 AbstractInterpreter]: Visited 105 different actions 516 times. Merged at 8 different actions 35 times. Never widened. Performed 6584 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6584 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 3 different actions. Largest state had 38 variables. [2018-12-09 18:55:11,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:11,350 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 18:55:11,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 18:55:11,350 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/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 [2018-12-09 18:55:11,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:11,356 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 18:55:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:11,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:55:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-12-09 18:55:11,449 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 18:55:11,491 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-12-09 18:55:11,506 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 18:55:11,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-12-09 18:55:11,506 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 18:55:11,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 18:55:11,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 18:55:11,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-12-09 18:55:11,507 INFO L87 Difference]: Start difference. First operand 5277 states and 5944 transitions. Second operand 12 states. [2018-12-09 18:55:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:13,441 INFO L93 Difference]: Finished difference Result 8897 states and 10030 transitions. [2018-12-09 18:55:13,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-12-09 18:55:13,441 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 234 [2018-12-09 18:55:13,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:13,442 INFO L225 Difference]: With dead ends: 8897 [2018-12-09 18:55:13,442 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:55:13,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1806, Unknown=0, NotChecked=0, Total=2256 [2018-12-09 18:55:13,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:55:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:55:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:55:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:55:13,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2018-12-09 18:55:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:13,449 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:55:13,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 18:55:13,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:55:13,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:55:13,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 18:55:13,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:55:13,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 18:55:14,518 WARN L180 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 89 [2018-12-09 18:55:14,903 WARN L180 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 75 [2018-12-09 18:55:15,341 WARN L180 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 75 [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:55:15,343 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)|)) [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-12-09 18:55:15,343 INFO L448 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-12-09 18:55:15,344 INFO L448 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-12-09 18:55:15,345 INFO L448 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,346 INFO L448 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-12-09 18:55:15,347 INFO L448 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-12-09 18:55:15,348 INFO L448 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-12-09 18:55:15,349 INFO L448 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (= |old(~a19~0)| ~a19~0)) (.cse15 (= ~a11~0 1)) (.cse26 (= 1 |old(~a25~0)|)) (.cse2 (= ~a11~0 0)) (.cse3 (= ~a17~0 8)) (.cse13 (= ~a19~0 1)) (.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse5 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (= 0 |old(~a28~0)|)) (.cse0 (not (= 1 ~a21~0))) (.cse7 (not (= 0 |old(~a11~0)|))) (.cse14 (and .cse2 .cse3 .cse13 .cse4 .cse5)) (.cse10 (= |calculate_output_#in~input| 0)) (.cse12 (not (= 1 |old(~a19~0)|))) (.cse18 (< |old(~a28~0)| 9)) (.cse8 (not (= 8 |old(~a17~0)|))) (.cse19 (not (= |old(~a19~0)| 1))) (.cse11 (not .cse26)) (.cse21 (and (= |old(~a17~0)| ~a17~0) .cse1 .cse4 .cse15 .cse5)) (.cse9 (< 0 |old(~a19~0)|)) (.cse25 (< 8 |old(~a17~0)|)) (.cse16 (not (= 1 |old(~a11~0)|))) (.cse17 (< 10 |old(~a28~0)|)) (.cse24 (and .cse26 (= |old(~a19~0)| |old(~a25~0)|))) (.cse20 (< 7 |old(~a17~0)|)) (.cse22 (<= ~a17~0 |old(~a17~0)|)) (.cse23 (= |old(~a28~0)| ~a28~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9 .cse10) (or .cse11 .cse7 (or .cse0 .cse12 .cse6) .cse8 .cse10 (and (= ~a11~0 |old(~a11~0)|) (and (= |old(~a25~0)| ~a25~0) .cse3 .cse13 .cse4))) (or .cse14 (or .cse0 (not (= 7 |old(~a28~0)|)) .cse12 .cse7 .cse10) .cse8 (not (= 0 |old(~a25~0)|))) (or .cse0 (and .cse3 .cse13 .cse4 .cse15 .cse5) .cse10 .cse16 .cse17 .cse12 .cse18 .cse8) (or .cse11 (or .cse19 .cse20) .cse16 .cse21) (or .cse0 .cse7 .cse14 .cse10 .cse17 .cse12 .cse18 .cse8) (or .cse19 (and .cse22 .cse23 .cse1 (not (= ~a19~0 ~a25~0))) .cse24 .cse20) (or .cse17 .cse11 .cse21 .cse25 .cse16 (< |old(~a19~0)| 1)) (or .cse21 (= 8 |old(~a28~0)|) .cse9 .cse25 .cse16 .cse26) (or .cse17 .cse24 .cse20 (and .cse22 .cse23 .cse1))))) [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-12-09 18:55:15,350 INFO L448 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-12-09 18:55:15,351 INFO L448 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-12-09 18:55:15,352 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:55:15,353 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)) [2018-12-09 18:55:15,353 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:55:15,353 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)|))) [2018-12-09 18:55:15,353 INFO L444 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (and (<= ~a17~0 |old(~a17~0)|) (<= ~a19~0 0))) (.cse10 (= ~a11~0 |old(~a11~0)|)) (.cse0 (= 1 ~a25~0)) (.cse1 (= ~a11~0 1)) (.cse13 (= |old(~a19~0)| ~a19~0)) (.cse3 (<= ~a17~0 7)) (.cse4 (<= ~a28~0 10)) (.cse7 (<= 9 ~a28~0)) (.cse5 (or (not (= ~a19~0 ~a25~0)) (not (= 1 ~a19~0)))) (.cse8 (<= ~a17~0 8)) (.cse9 (not (= main_~input~0 0))) (.cse11 (not (= ~a28~0 0))) (.cse12 (= ~a17~0 8)) (.cse6 (= ~a19~0 1)) (.cse14 (= ~a11~0 0))) (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and (not .cse0) (= |old(~a17~0)| ~a17~0) (not (= ~a28~0 8)) .cse1 .cse2) (not (= 0 |old(~a11~0)|)) (and .cse3 .cse4 .cse5) (and .cse4 .cse6 .cse7 .cse8 .cse1) (and .cse9 .cse10 .cse11 .cse12 .cse2) (and (and .cse6 (= ~a28~0 |old(~a28~0)|) .cse8) .cse10 (= ~a25~0 |old(~a25~0)|)) (and .cse13 .cse3 .cse5) (not (= 0 |old(~a25~0)|)) (and .cse0 .cse4 .cse8 .cse1 (<= 1 ~a19~0)) (and .cse1 (and .cse13 .cse3)) (not (= 1 |old(~a19~0)|)) (and .cse9 .cse4 .cse14 .cse6 .cse7 .cse5 .cse8) (and .cse9 (= ~a25~0 1) (and .cse11 .cse12 .cse6) .cse14) (not (= 8 |old(~a17~0)|)))) [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L444 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (and (<= ~a17~0 |old(~a17~0)|) (<= ~a19~0 0))) (.cse10 (or (not (= ~a19~0 ~a25~0)) (not (= 1 ~a19~0)))) (.cse0 (= 1 ~a25~0)) (.cse12 (= |old(~a19~0)| ~a19~0)) (.cse9 (<= ~a17~0 7)) (.cse4 (<= ~a28~0 10)) (.cse7 (<= 9 ~a28~0)) (.cse1 (= ~a11~0 1)) (.cse13 (<= ~a17~0 8)) (.cse8 (= ~a11~0 |old(~a11~0)|)) (.cse3 (not (= main_~input~0 0))) (.cse11 (not (= ~a28~0 0))) (.cse5 (= ~a17~0 8)) (.cse6 (= ~a19~0 1))) (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and (not .cse0) (= |old(~a17~0)| ~a17~0) (not (= ~a28~0 8)) .cse1 .cse2) (and (and .cse3 .cse4 .cse5 .cse6 .cse7) .cse8) (not (= 0 |old(~a11~0)|)) (and .cse9 .cse4 .cse10) (and .cse3 .cse8 .cse11 .cse5 .cse2) (and .cse12 .cse9 .cse10) (not (= 0 |old(~a25~0)|)) (and .cse0 .cse4 .cse13 .cse1 (<= 1 ~a19~0)) (and .cse1 (and .cse12 .cse9)) (and .cse3 .cse4 .cse6 .cse7 .cse13 .cse1) (not (= 1 |old(~a19~0)|)) (and .cse3 (= ~a11~0 0) .cse6 (= ~a28~0 |old(~a28~0)|) .cse13 (= ~a25~0 |old(~a25~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse8 (= ~a25~0 1) (and .cse3 .cse11 .cse5 .cse6)))) [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-12-09 18:55:15,353 INFO L448 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-12-09 18:55:15,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:55:15 BoogieIcfgContainer [2018-12-09 18:55:15,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:55:15,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:55:15,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:55:15,362 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:55:15,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:54:49" (3/4) ... [2018-12-09 18:55:15,365 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:55:15,368 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 18:55:15,368 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-09 18:55:15,368 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 18:55:15,374 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 18:55:15,375 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 18:55:15,391 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((!(1 == a21) || !(7 == \old(a28))) || ((((!(1 == a25) && \old(a17) == a17) && !(a28 == 8)) && a11 == 1) && a17 <= \old(a17) && a19 <= 0)) || !(0 == \old(a11))) || ((a17 <= 7 && a28 <= 10) && (!(a19 == a25) || !(1 == a19)))) || ((((a28 <= 10 && a19 == 1) && 9 <= a28) && a17 <= 8) && a11 == 1)) || ((((!(input == 0) && a11 == \old(a11)) && !(a28 == 0)) && a17 == 8) && a17 <= \old(a17) && a19 <= 0)) || ((((a19 == 1 && a28 == \old(a28)) && a17 <= 8) && a11 == \old(a11)) && a25 == \old(a25))) || ((\old(a19) == a19 && a17 <= 7) && (!(a19 == a25) || !(1 == a19)))) || !(0 == \old(a25))) || ((((1 == a25 && a28 <= 10) && a17 <= 8) && a11 == 1) && 1 <= a19)) || (a11 == 1 && \old(a19) == a19 && a17 <= 7)) || !(1 == \old(a19))) || ((((((!(input == 0) && a28 <= 10) && a11 == 0) && a19 == 1) && 9 <= a28) && (!(a19 == a25) || !(1 == a19))) && a17 <= 8)) || (((!(input == 0) && a25 == 1) && (!(a28 == 0) && a17 == 8) && a19 == 1) && a11 == 0)) || !(8 == \old(a17)) [2018-12-09 18:55:15,433 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_96baa090-d12b-4aa7-9554-738a545b69fe/bin-2019/utaipan/witness.graphml [2018-12-09 18:55:15,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:55:15,434 INFO L168 Benchmark]: Toolchain (without parser) took 27032.09 ms. Allocated memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: 1.3 GB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-09 18:55:15,434 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:15,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:15,434 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:15,435 INFO L168 Benchmark]: Boogie Preprocessor took 37.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:15,435 INFO L168 Benchmark]: RCFGBuilder took 632.59 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: 100.0 MB). Peak memory consumption was 100.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:15,435 INFO L168 Benchmark]: TraceAbstraction took 25937.87 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -77.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-09 18:55:15,435 INFO L168 Benchmark]: Witness Printer took 71.56 ms. Allocated memory is still 2.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:15,436 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 632.59 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: 100.0 MB). Peak memory consumption was 100.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25937.87 ms. Allocated memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: 1.1 GB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -77.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 71.56 ms. Allocated memory is still 2.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: 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 == a21) || !(7 == \old(a28))) || ((((!(1 == a25) && \old(a17) == a17) && !(a28 == 8)) && a11 == 1) && a17 <= \old(a17) && a19 <= 0)) || !(0 == \old(a11))) || ((a17 <= 7 && a28 <= 10) && (!(a19 == a25) || !(1 == a19)))) || ((((a28 <= 10 && a19 == 1) && 9 <= a28) && a17 <= 8) && a11 == 1)) || ((((!(input == 0) && a11 == \old(a11)) && !(a28 == 0)) && a17 == 8) && a17 <= \old(a17) && a19 <= 0)) || ((((a19 == 1 && a28 == \old(a28)) && a17 <= 8) && a11 == \old(a11)) && a25 == \old(a25))) || ((\old(a19) == a19 && a17 <= 7) && (!(a19 == a25) || !(1 == a19)))) || !(0 == \old(a25))) || ((((1 == a25 && a28 <= 10) && a17 <= 8) && a11 == 1) && 1 <= a19)) || (a11 == 1 && \old(a19) == a19 && a17 <= 7)) || !(1 == \old(a19))) || ((((((!(input == 0) && a28 <= 10) && a11 == 0) && a19 == 1) && 9 <= a28) && (!(a19 == a25) || !(1 == a19))) && a17 <= 8)) || (((!(input == 0) && a25 == 1) && (!(a28 == 0) && a17 == 8) && a19 == 1) && a11 == 0)) || !(8 == \old(a17)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. SAFE Result, 25.8s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 19.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 702 SDtfs, 10684 SDslu, 1305 SDs, 0 SdLazy, 17077 SolverSat, 2885 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2146 GetRequests, 1937 SyntacticMatches, 8 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1666 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5277occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 8 AbstIntIterations, 4 AbstIntStrong, 0.9968942843532277 AbsIntWeakeningRatio, 0.23562152133580705 AbsIntAvgWeakeningVarsNumRemoved, 25.85899814471243 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1857 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 149 PreInvPairs, 229 NumberOfFragments, 880 HoareAnnotationTreeSize, 149 FomulaSimplifications, 7835 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9207 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2005 NumberOfCodeBlocks, 2005 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2670 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042525 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1930 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 1379/1669 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...