./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/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_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/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 0.1.23-5842f4b [2018-11-18 16:56:48,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:56:48,735 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:56:48,742 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:56:48,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:56:48,743 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:56:48,744 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:56:48,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:56:48,746 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:56:48,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:56:48,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:56:48,748 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:56:48,748 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:56:48,749 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:56:48,749 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:56:48,750 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:56:48,750 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:56:48,751 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:56:48,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:56:48,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:56:48,754 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:56:48,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:56:48,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:56:48,756 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:56:48,756 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:56:48,757 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:56:48,758 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:56:48,758 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:56:48,758 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:56:48,759 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:56:48,759 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:56:48,760 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:56:48,760 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:56:48,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:56:48,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:56:48,761 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:56:48,761 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:56:48,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:56:48,770 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:56:48,770 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:56:48,770 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:56:48,770 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:56:48,771 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:56:48,771 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:56:48,771 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:56:48,771 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:56:48,771 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:56:48,771 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:56:48,771 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:56:48,772 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:56:48,772 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:56:48,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:56:48,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:56:48,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:56:48,773 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:56:48,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:56:48,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:56:48,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:56:48,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:56:48,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:56:48,774 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:56:48,774 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:56:48,775 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:56:48,775 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:56:48,775 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:56:48,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:56:48,775 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:56:48,775 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_39be8887-b082-4777-a5b2-c24d27e1f03b/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 [2018-11-18 16:56:48,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:56:48,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:56:48,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:56:48,812 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:56:48,812 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:56:48,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem02_label19_true-unreach-call_false-termination.c [2018-11-18 16:56:48,857 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/data/5e2c90edf/a374ff712c5640b88092f45e1528033f/FLAGd31b3cf3f [2018-11-18 16:56:49,245 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:56:49,246 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/sv-benchmarks/c/eca-rers2012/Problem02_label19_true-unreach-call_false-termination.c [2018-11-18 16:56:49,254 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/data/5e2c90edf/a374ff712c5640b88092f45e1528033f/FLAGd31b3cf3f [2018-11-18 16:56:49,612 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/data/5e2c90edf/a374ff712c5640b88092f45e1528033f [2018-11-18 16:56:49,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:56:49,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:56:49,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:56:49,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:56:49,618 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:56:49,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:49,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d293ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49, skipping insertion in model container [2018-11-18 16:56:49,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:49,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:56:49,665 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:56:49,904 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:56:49,908 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:56:49,976 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:56:49,988 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:56:49,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49 WrapperNode [2018-11-18 16:56:49,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:56:49,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:56:49,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:56:49,990 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:56:49,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:56:50,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:56:50,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:56:50,068 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:56:50,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... [2018-11-18 16:56:50,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:56:50,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:56:50,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:56:50,119 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:56:50,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:56:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 16:56:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:56:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:56:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 16:56:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 16:56:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:56:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:56:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:56:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:56:50,896 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:56:50,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:50 BoogieIcfgContainer [2018-11-18 16:56:50,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:56:50,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:56:50,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:56:50,900 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:56:50,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:56:49" (1/3) ... [2018-11-18 16:56:50,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da0ee33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:56:50, skipping insertion in model container [2018-11-18 16:56:50,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:49" (2/3) ... [2018-11-18 16:56:50,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da0ee33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:56:50, skipping insertion in model container [2018-11-18 16:56:50,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:50" (3/3) ... [2018-11-18 16:56:50,904 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label19_true-unreach-call_false-termination.c [2018-11-18 16:56:50,910 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:56:50,916 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:56:50,925 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:56:50,948 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:56:50,948 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:56:50,948 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:56:50,948 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:56:50,948 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:56:50,948 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:56:50,948 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:56:50,949 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:56:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-11-18 16:56:50,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-18 16:56:50,973 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:56:50,974 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:50,975 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:56:50,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:50,979 INFO L82 PathProgramCache]: Analyzing trace with hash 910633199, now seen corresponding path program 1 times [2018-11-18 16:56:50,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:56:51,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:51,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:51,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:51,011 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:56:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:51,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:56:51,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:56:51,292 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:56:51,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 16:56:51,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:56:51,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:56:51,310 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 4 states. [2018-11-18 16:56:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:56:52,190 INFO L93 Difference]: Finished difference Result 795 states and 1383 transitions. [2018-11-18 16:56:52,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:56:52,191 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-11-18 16:56:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:56:52,201 INFO L225 Difference]: With dead ends: 795 [2018-11-18 16:56:52,202 INFO L226 Difference]: Without dead ends: 552 [2018-11-18 16:56:52,205 INFO L604 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 [2018-11-18 16:56:52,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2018-11-18 16:56:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 382. [2018-11-18 16:56:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-11-18 16:56:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 639 transitions. [2018-11-18 16:56:52,247 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 639 transitions. Word has length 99 [2018-11-18 16:56:52,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:56:52,247 INFO L480 AbstractCegarLoop]: Abstraction has 382 states and 639 transitions. [2018-11-18 16:56:52,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 16:56:52,248 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 639 transitions. [2018-11-18 16:56:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-18 16:56:52,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:56:52,252 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:52,252 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:56:52,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:52,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1723273534, now seen corresponding path program 1 times [2018-11-18 16:56:52,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:56:52,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:52,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:52,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:52,254 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:56:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 16:56:52,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:56:52,378 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:56:52,379 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-11-18 16:56:52,381 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:56:52,409 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:56:52,409 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:56:52,684 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:56:52,685 INFO L272 AbstractInterpreter]: Visited 99 different actions 99 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. [2018-11-18 16:56:52,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:52,699 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:56:52,919 INFO L227 lantSequenceWeakener]: Weakened 102 states. On average, predicates are now at 80.56% of their original sizes. [2018-11-18 16:56:52,920 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:56:52,940 INFO L415 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2018-11-18 16:56:52,942 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:56:52,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:56:52,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-11-18 16:56:52,943 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:56:52,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:56:52,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:56:52,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:56:52,946 INFO L87 Difference]: Start difference. First operand 382 states and 639 transitions. Second operand 6 states. [2018-11-18 16:56:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:56:55,550 INFO L93 Difference]: Finished difference Result 908 states and 1537 transitions. [2018-11-18 16:56:55,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:56:55,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-11-18 16:56:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:56:55,553 INFO L225 Difference]: With dead ends: 908 [2018-11-18 16:56:55,553 INFO L226 Difference]: Without dead ends: 532 [2018-11-18 16:56:55,554 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:56:55,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2018-11-18 16:56:55,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 529. [2018-11-18 16:56:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2018-11-18 16:56:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 794 transitions. [2018-11-18 16:56:55,574 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 794 transitions. Word has length 108 [2018-11-18 16:56:55,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:56:55,574 INFO L480 AbstractCegarLoop]: Abstraction has 529 states and 794 transitions. [2018-11-18 16:56:55,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:56:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 794 transitions. [2018-11-18 16:56:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-18 16:56:55,577 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:56:55,577 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:55,577 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:56:55,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:55,578 INFO L82 PathProgramCache]: Analyzing trace with hash -212564618, now seen corresponding path program 1 times [2018-11-18 16:56:55,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:56:55,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:55,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:55,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:55,579 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:56:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:55,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:56:55,741 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:56:55,741 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-11-18 16:56:55,742 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:56:55,745 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:56:55,745 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:56:55,945 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:56:55,945 INFO L272 AbstractInterpreter]: Visited 102 different actions 198 times. Merged at 5 different actions 5 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. [2018-11-18 16:56:55,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:55,958 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:56:56,129 INFO L227 lantSequenceWeakener]: Weakened 110 states. On average, predicates are now at 82.19% of their original sizes. [2018-11-18 16:56:56,129 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:56:56,178 INFO L415 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-11-18 16:56:56,178 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:56:56,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:56:56,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-18 16:56:56,179 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:56:56,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 16:56:56,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 16:56:56,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:56:56,179 INFO L87 Difference]: Start difference. First operand 529 states and 794 transitions. Second operand 10 states. [2018-11-18 16:56:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:56:59,633 INFO L93 Difference]: Finished difference Result 1503 states and 2440 transitions. [2018-11-18 16:56:59,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 16:56:59,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 113 [2018-11-18 16:56:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:56:59,637 INFO L225 Difference]: With dead ends: 1503 [2018-11-18 16:56:59,637 INFO L226 Difference]: Without dead ends: 980 [2018-11-18 16:56:59,638 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 16:56:59,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2018-11-18 16:56:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 973. [2018-11-18 16:56:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-11-18 16:56:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1323 transitions. [2018-11-18 16:56:59,660 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1323 transitions. Word has length 113 [2018-11-18 16:56:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:56:59,660 INFO L480 AbstractCegarLoop]: Abstraction has 973 states and 1323 transitions. [2018-11-18 16:56:59,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 16:56:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1323 transitions. [2018-11-18 16:56:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-18 16:56:59,662 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:56:59,662 INFO L375 BasicCegarLoop]: trace histogram [3, 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] [2018-11-18 16:56:59,662 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:56:59,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:59,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1615042339, now seen corresponding path program 1 times [2018-11-18 16:56:59,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:56:59,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:59,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:59,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:59,664 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:56:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:59,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:56:59,762 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:56:59,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-11-18 16:56:59,763 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:56:59,766 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:56:59,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:56:59,903 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:56:59,903 INFO L272 AbstractInterpreter]: Visited 103 different actions 308 times. Merged at 7 different actions 21 times. Never widened. Performed 3625 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3625 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-18 16:56:59,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:59,906 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:57:00,081 INFO L227 lantSequenceWeakener]: Weakened 115 states. On average, predicates are now at 84.25% of their original sizes. [2018-11-18 16:57:00,081 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:57:00,123 INFO L415 sIntCurrentIteration]: We unified 117 AI predicates to 117 [2018-11-18 16:57:00,124 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:57:00,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:57:00,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2018-11-18 16:57:00,124 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:00,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:57:00,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:57:00,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:57:00,125 INFO L87 Difference]: Start difference. First operand 973 states and 1323 transitions. Second operand 9 states. [2018-11-18 16:57:03,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:03,166 INFO L93 Difference]: Finished difference Result 2398 states and 3480 transitions. [2018-11-18 16:57:03,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 16:57:03,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2018-11-18 16:57:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:03,171 INFO L225 Difference]: With dead ends: 2398 [2018-11-18 16:57:03,171 INFO L226 Difference]: Without dead ends: 1431 [2018-11-18 16:57:03,174 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 125 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-18 16:57:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2018-11-18 16:57:03,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1403. [2018-11-18 16:57:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1403 states. [2018-11-18 16:57:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1859 transitions. [2018-11-18 16:57:03,206 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1859 transitions. Word has length 118 [2018-11-18 16:57:03,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:03,207 INFO L480 AbstractCegarLoop]: Abstraction has 1403 states and 1859 transitions. [2018-11-18 16:57:03,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:57:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1859 transitions. [2018-11-18 16:57:03,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-18 16:57:03,210 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:03,210 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:57:03,211 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:03,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:03,211 INFO L82 PathProgramCache]: Analyzing trace with hash 882007688, now seen corresponding path program 1 times [2018-11-18 16:57:03,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:03,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:03,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:03,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:03,212 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:03,392 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:03,392 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:03,392 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-18 16:57:03,392 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:57:03,395 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:03,395 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:03,519 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:03,520 INFO L272 AbstractInterpreter]: Visited 104 different actions 306 times. Merged at 7 different actions 18 times. Never widened. Performed 3662 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3662 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-18 16:57:03,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:03,527 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:03,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:03,527 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:03,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:03,538 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:03,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:03,663 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:57:03,787 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 16:57:03,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-18 16:57:03,788 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 16:57:03,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:57:03,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:57:03,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:57:03,788 INFO L87 Difference]: Start difference. First operand 1403 states and 1859 transitions. Second operand 9 states. [2018-11-18 16:57:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:04,621 INFO L93 Difference]: Finished difference Result 3633 states and 5079 transitions. [2018-11-18 16:57:04,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:57:04,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 145 [2018-11-18 16:57:04,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:04,631 INFO L225 Difference]: With dead ends: 3633 [2018-11-18 16:57:04,632 INFO L226 Difference]: Without dead ends: 2236 [2018-11-18 16:57:04,636 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-11-18 16:57:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2018-11-18 16:57:04,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2170. [2018-11-18 16:57:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2018-11-18 16:57:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2938 transitions. [2018-11-18 16:57:04,685 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2938 transitions. Word has length 145 [2018-11-18 16:57:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:04,686 INFO L480 AbstractCegarLoop]: Abstraction has 2170 states and 2938 transitions. [2018-11-18 16:57:04,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:57:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2938 transitions. [2018-11-18 16:57:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-18 16:57:04,690 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:04,690 INFO L375 BasicCegarLoop]: trace histogram [4, 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] [2018-11-18 16:57:04,690 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:04,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:04,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1311860951, now seen corresponding path program 1 times [2018-11-18 16:57:04,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:04,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:04,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:04,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:04,692 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 16:57:04,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:04,800 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:04,800 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-11-18 16:57:04,800 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:57:04,802 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:04,803 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:04,971 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:04,971 INFO L272 AbstractInterpreter]: Visited 105 different actions 309 times. Merged at 8 different actions 18 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. [2018-11-18 16:57:04,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:04,974 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:04,974 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:04,974 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:04,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:04,981 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:05,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 16:57:05,083 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-18 16:57:05,196 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 16:57:05,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 14 [2018-11-18 16:57:05,197 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 16:57:05,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 16:57:05,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 16:57:05,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-18 16:57:05,198 INFO L87 Difference]: Start difference. First operand 2170 states and 2938 transitions. Second operand 11 states. [2018-11-18 16:57:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:07,917 INFO L93 Difference]: Finished difference Result 7014 states and 10471 transitions. [2018-11-18 16:57:07,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 16:57:07,918 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-11-18 16:57:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:07,926 INFO L225 Difference]: With dead ends: 7014 [2018-11-18 16:57:07,926 INFO L226 Difference]: Without dead ends: 3857 [2018-11-18 16:57:07,933 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 305 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 16:57:07,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2018-11-18 16:57:07,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3549. [2018-11-18 16:57:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3549 states. [2018-11-18 16:57:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3549 states to 3549 states and 4295 transitions. [2018-11-18 16:57:07,984 INFO L78 Accepts]: Start accepts. Automaton has 3549 states and 4295 transitions. Word has length 147 [2018-11-18 16:57:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:07,984 INFO L480 AbstractCegarLoop]: Abstraction has 3549 states and 4295 transitions. [2018-11-18 16:57:07,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 16:57:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3549 states and 4295 transitions. [2018-11-18 16:57:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-18 16:57:07,990 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:07,990 INFO L375 BasicCegarLoop]: trace histogram [5, 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] [2018-11-18 16:57:07,990 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:07,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:07,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1977162180, now seen corresponding path program 1 times [2018-11-18 16:57:07,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:07,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:07,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:07,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:07,991 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 68 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-18 16:57:08,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:08,074 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:08,074 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-11-18 16:57:08,075 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:57:08,076 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:08,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:08,326 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:08,327 INFO L272 AbstractInterpreter]: Visited 106 different actions 528 times. Merged at 9 different actions 46 times. Never widened. Performed 6297 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6297 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 14 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-18 16:57:08,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:08,330 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:08,330 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:08,330 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:08,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:08,336 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:08,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-18 16:57:08,412 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:08,454 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 87 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 16:57:08,469 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 16:57:08,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-11-18 16:57:08,469 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 16:57:08,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 16:57:08,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 16:57:08,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-18 16:57:08,471 INFO L87 Difference]: Start difference. First operand 3549 states and 4295 transitions. Second operand 12 states. [2018-11-18 16:57:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:10,134 INFO L93 Difference]: Finished difference Result 9917 states and 12131 transitions. [2018-11-18 16:57:10,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-11-18 16:57:10,134 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2018-11-18 16:57:10,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:10,150 INFO L225 Difference]: With dead ends: 9917 [2018-11-18 16:57:10,151 INFO L226 Difference]: Without dead ends: 6202 [2018-11-18 16:57:10,159 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=578, Invalid=1872, Unknown=0, NotChecked=0, Total=2450 [2018-11-18 16:57:10,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6202 states. [2018-11-18 16:57:10,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6202 to 5182. [2018-11-18 16:57:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5182 states. [2018-11-18 16:57:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 5879 transitions. [2018-11-18 16:57:10,260 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 5879 transitions. Word has length 168 [2018-11-18 16:57:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:10,261 INFO L480 AbstractCegarLoop]: Abstraction has 5182 states and 5879 transitions. [2018-11-18 16:57:10,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 16:57:10,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 5879 transitions. [2018-11-18 16:57:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-18 16:57:10,267 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:10,267 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 16:57:10,268 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:10,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:10,268 INFO L82 PathProgramCache]: Analyzing trace with hash 793861676, now seen corresponding path program 1 times [2018-11-18 16:57:10,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:10,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:10,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:10,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:10,269 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-18 16:57:10,468 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:10,468 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:10,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-11-18 16:57:10,469 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:57:10,470 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:10,471 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:10,652 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:57:10,652 INFO L272 AbstractInterpreter]: Visited 106 different actions 309 times. Merged at 8 different actions 17 times. Never widened. Performed 3627 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3627 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-18 16:57:10,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:10,653 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:57:10,867 INFO L227 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 84.41% of their original sizes. [2018-11-18 16:57:10,867 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:57:10,937 INFO L415 sIntCurrentIteration]: We unified 214 AI predicates to 214 [2018-11-18 16:57:10,937 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:57:10,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:57:10,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-11-18 16:57:10,937 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:57:10,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 16:57:10,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 16:57:10,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:57:10,938 INFO L87 Difference]: Start difference. First operand 5182 states and 5879 transitions. Second operand 11 states. [2018-11-18 16:57:14,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:14,358 INFO L93 Difference]: Finished difference Result 12341 states and 14249 transitions. [2018-11-18 16:57:14,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 16:57:14,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2018-11-18 16:57:14,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:14,375 INFO L225 Difference]: With dead ends: 12341 [2018-11-18 16:57:14,375 INFO L226 Difference]: Without dead ends: 7310 [2018-11-18 16:57:14,385 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 229 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2018-11-18 16:57:14,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2018-11-18 16:57:14,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 7128. [2018-11-18 16:57:14,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7128 states. [2018-11-18 16:57:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7128 states to 7128 states and 8010 transitions. [2018-11-18 16:57:14,503 INFO L78 Accepts]: Start accepts. Automaton has 7128 states and 8010 transitions. Word has length 215 [2018-11-18 16:57:14,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:14,504 INFO L480 AbstractCegarLoop]: Abstraction has 7128 states and 8010 transitions. [2018-11-18 16:57:14,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 16:57:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 7128 states and 8010 transitions. [2018-11-18 16:57:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-11-18 16:57:14,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:57:14,514 INFO L375 BasicCegarLoop]: trace histogram [5, 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] [2018-11-18 16:57:14,514 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:57:14,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:14,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1666049682, now seen corresponding path program 1 times [2018-11-18 16:57:14,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:57:14,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:14,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:57:14,515 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:57:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 196 proven. 52 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-18 16:57:14,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:14,675 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:57:14,675 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-11-18 16:57:14,676 INFO L202 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], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-11-18 16:57:14,677 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:57:14,677 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:57:14,913 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:57:14,913 INFO L272 AbstractInterpreter]: Visited 106 different actions 516 times. Merged at 9 different actions 34 times. Never widened. Performed 6573 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6573 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 11 fixpoints after 3 different actions. Largest state had 38 variables. [2018-11-18 16:57:14,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:57:14,919 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:57:14,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:57:14,919 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:57:14,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:57:14,929 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:57:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:57:14,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:57:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-18 16:57:15,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:57:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-18 16:57:15,175 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 16:57:15,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-11-18 16:57:15,175 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 16:57:15,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 16:57:15,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 16:57:15,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:57:15,176 INFO L87 Difference]: Start difference. First operand 7128 states and 8010 transitions. Second operand 12 states. [2018-11-18 16:57:17,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:57:17,424 INFO L93 Difference]: Finished difference Result 12644 states and 14289 transitions. [2018-11-18 16:57:17,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-18 16:57:17,425 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 239 [2018-11-18 16:57:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:57:17,425 INFO L225 Difference]: With dead ends: 12644 [2018-11-18 16:57:17,425 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:57:17,437 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 510 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=488, Invalid=2062, Unknown=0, NotChecked=0, Total=2550 [2018-11-18 16:57:17,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:57:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:57:17,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:57:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:57:17,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 239 [2018-11-18 16:57:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:57:17,438 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:57:17,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 16:57:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:57:17,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:57:17,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:57:17,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:17,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:17,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:17,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:17,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:17,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:17,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:57:18,740 WARN L180 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 91 [2018-11-18 16:57:19,172 WARN L180 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 72 [2018-11-18 16:57:19,553 WARN L180 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 72 [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:57:19,555 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= ~a11~0 |old(~a11~0)|) (= |old(~a17~0)| ~a17~0) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,555 INFO L425 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2018-11-18 16:57:19,556 INFO L425 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2018-11-18 16:57:19,557 INFO L425 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2018-11-18 16:57:19,558 INFO L425 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2018-11-18 16:57:19,559 INFO L425 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2018-11-18 16:57:19,560 INFO L425 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2018-11-18 16:57:19,561 INFO L425 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2018-11-18 16:57:19,562 INFO L425 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,563 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,564 INFO L425 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2018-11-18 16:57:19,565 INFO L425 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2018-11-18 16:57:19,566 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2018-11-18 16:57:19,566 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2018-11-18 16:57:19,566 INFO L425 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,566 INFO L425 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,566 INFO L425 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,566 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse29 (= |old(~a17~0)| ~a17~0)) (.cse12 (= ~a11~0 1)) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse22 (= |old(~a28~0)| ~a28~0)) (.cse18 (= |old(~a19~0)| ~a19~0)) (.cse28 (= 1 |old(~a25~0)|)) (.cse19 (= ~a11~0 0)) (.cse9 (= ~a17~0 8)) (.cse10 (= ~a19~0 1)) (.cse11 (= ~a28~0 |old(~a28~0)|)) (.cse13 (= ~a25~0 |old(~a25~0)|))) (let ((.cse3 (and .cse19 .cse9 .cse10 .cse11 .cse13)) (.cse24 (not .cse28)) (.cse6 (not (= 0 |old(~a11~0)|))) (.cse4 (not (= 1 ~a21~0))) (.cse5 (not (= 1 |old(~a19~0)|))) (.cse17 (= 0 |old(~a28~0)|)) (.cse8 (not (= 8 |old(~a17~0)|))) (.cse7 (= |calculate_output_#in~input| 0)) (.cse23 (and .cse28 (= |old(~a19~0)| |old(~a25~0)|))) (.cse0 (and .cse21 .cse22 .cse18)) (.cse1 (< 0 |old(~a19~0)|)) (.cse26 (< 8 |old(~a17~0)|)) (.cse14 (not (= 1 |old(~a11~0)|))) (.cse25 (and .cse29 .cse18 .cse11 .cse12 .cse13)) (.cse15 (< 10 |old(~a28~0)|)) (.cse27 (= |old(~a25~0)| ~a25~0)) (.cse20 (not (= |old(~a19~0)| 1))) (.cse16 (< |old(~a28~0)| 9)) (.cse2 (< 7 |old(~a17~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 (or .cse4 (not (= 7 |old(~a28~0)|)) .cse5 .cse6 .cse7) .cse8 (not (= 0 |old(~a25~0)|))) (or .cse4 (and .cse9 .cse10 .cse11 .cse12 .cse13) .cse7 .cse14 .cse15 .cse5 .cse16 .cse8) (or .cse4 .cse6 .cse3 .cse7 .cse15 .cse5 .cse16 .cse8) (or .cse4 (or .cse15 .cse1) .cse17 .cse6 .cse8 (and .cse18 .cse19 .cse9 .cse11 .cse13) .cse7) (or .cse20 (and .cse21 .cse22 .cse18 (not (= ~a19~0 ~a25~0))) .cse23 .cse2) (or .cse15 .cse24 .cse25 .cse26 .cse14 (< |old(~a19~0)| 1)) (or .cse24 .cse6 (or .cse4 .cse5 .cse17 .cse8 .cse7) (and (= ~a11~0 |old(~a11~0)|) (and .cse27 .cse9 .cse10 .cse11))) (or .cse15 .cse23 .cse2 .cse0) (or .cse15 (= 8 |old(~a28~0)|) .cse1 .cse26 .cse14 .cse28 .cse25) (or .cse15 (and .cse18 .cse29 .cse27 .cse11) .cse20 .cse16 .cse2)))) [2018-11-18 16:57:19,566 INFO L425 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,567 INFO L425 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2018-11-18 16:57:19,568 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2018-11-18 16:57:19,569 INFO L425 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a11~0 0) (= ~a25~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 7) (= ~a21~0 1)) [2018-11-18 16:57:19,570 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:57:19,570 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (not (= 0 |old(~a11~0)|)) (and (= ~a11~0 0) (= ~a17~0 8) (= ~a19~0 1) (= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|))) [2018-11-18 16:57:19,570 INFO L425 ceAbstractionStarter]: For program point L606-1(lines 606 616) no Hoare annotation was computed. [2018-11-18 16:57:19,571 INFO L421 ceAbstractionStarter]: At program point L606-3(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 7)) (.cse6 (or (not (= ~a19~0 ~a25~0)) (not (= 1 ~a19~0)))) (.cse9 (<= ~a19~0 0)) (.cse7 (= 1 ~a25~0)) (.cse5 (= ~a11~0 1)) (.cse1 (<= ~a28~0 10)) (.cse2 (<= 9 ~a28~0)) (.cse4 (<= ~a17~0 8)) (.cse8 (not (= main_~input~0 0))) (.cse11 (not (= ~a28~0 0))) (.cse3 (= ~a19~0 1)) (.cse10 (= ~a11~0 0))) (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and .cse0 .cse1 .cse2) (not (= 0 |old(~a11~0)|)) (and .cse1 .cse3 .cse2 .cse4 .cse5) (and (and .cse3 (= ~a28~0 |old(~a28~0)|) .cse4) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|)) (and (= |old(~a19~0)| ~a19~0) .cse0 .cse6) (not (= 0 |old(~a25~0)|)) (and .cse7 .cse1 .cse4 .cse5 (<= 1 ~a19~0)) (and .cse8 .cse9 .cse1 .cse10 .cse11 .cse4) (and .cse0 .cse9) (and .cse0 .cse1 .cse6) (and .cse9 (not .cse7) .cse1 (not (= ~a28~0 8)) .cse4 .cse5) (not (= 1 |old(~a19~0)|)) (and .cse8 .cse1 .cse10 .cse3 .cse2 .cse4) (and .cse8 (= ~a25~0 1) (and .cse11 (= ~a17~0 8) .cse3) .cse10) (not (= 8 |old(~a17~0)|)))) [2018-11-18 16:57:19,571 INFO L425 ceAbstractionStarter]: For program point L606-4(lines 600 617) no Hoare annotation was computed. [2018-11-18 16:57:19,571 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2018-11-18 16:57:19,571 INFO L421 ceAbstractionStarter]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= 9 ~a28~0)) (.cse6 (<= ~a17~0 7)) (.cse7 (or (not (= ~a19~0 ~a25~0)) (not (= 1 ~a19~0)))) (.cse10 (<= ~a19~0 0)) (.cse8 (= 1 ~a25~0)) (.cse1 (<= ~a28~0 10)) (.cse9 (= ~a11~0 1)) (.cse11 (= ~a11~0 0)) (.cse4 (<= ~a17~0 8)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse0 (not (= main_~input~0 0))) (.cse12 (not (= ~a28~0 0))) (.cse2 (= ~a19~0 1))) (or (not (= 1 ~a21~0)) (not (= 7 |old(~a28~0)|)) (and (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5) (and .cse6 .cse1 .cse3) (not (= 0 |old(~a11~0)|)) (and (= |old(~a19~0)| ~a19~0) .cse6 .cse7) (not (= 0 |old(~a25~0)|)) (and .cse8 .cse1 .cse4 .cse9 (<= 1 ~a19~0)) (and .cse0 .cse10 .cse1 .cse11 .cse12 .cse4) (and .cse6 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse9) (and .cse6 .cse1 .cse7) (and .cse10 (not .cse8) .cse1 (not (= ~a28~0 8)) .cse4 .cse9) (not (= 1 |old(~a19~0)|)) (and .cse0 .cse11 .cse2 (= ~a28~0 |old(~a28~0)|) .cse4 (= ~a25~0 |old(~a25~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse5 (= ~a25~0 1) (and .cse0 .cse12 (= ~a17~0 8) .cse2)))) [2018-11-18 16:57:19,571 INFO L425 ceAbstractionStarter]: For program point L614-1(line 614) no Hoare annotation was computed. [2018-11-18 16:57:19,571 INFO L425 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2018-11-18 16:57:19,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:57:19 BoogieIcfgContainer [2018-11-18 16:57:19,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:57:19,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:57:19,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:57:19,582 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:57:19,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:50" (3/4) ... [2018-11-18 16:57:19,585 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:57:19,590 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:57:19,591 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 16:57:19,591 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:57:19,600 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 16:57:19,600 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 16:57:19,624 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((!(1 == a21) || !(7 == \old(a28))) || ((a17 <= 7 && a28 <= 10) && 9 <= a28)) || !(0 == \old(a11))) || ((((a28 <= 10 && a19 == 1) && 9 <= a28) && a17 <= 8) && a11 == 1)) || ((((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)) || (((((!(input == 0) && a19 <= 0) && a28 <= 10) && a11 == 0) && !(a28 == 0)) && a17 <= 8)) || (a17 <= 7 && a19 <= 0)) || ((a17 <= 7 && a28 <= 10) && (!(a19 == a25) || !(1 == a19)))) || (((((a19 <= 0 && !(1 == a25)) && a28 <= 10) && !(a28 == 8)) && a17 <= 8) && a11 == 1)) || !(1 == \old(a19))) || (((((!(input == 0) && a28 <= 10) && a11 == 0) && a19 == 1) && 9 <= a28) && a17 <= 8)) || (((!(input == 0) && a25 == 1) && (!(a28 == 0) && a17 == 8) && a19 == 1) && a11 == 0)) || !(8 == \old(a17)) [2018-11-18 16:57:19,691 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_39be8887-b082-4777-a5b2-c24d27e1f03b/bin-2019/utaipan/witness.graphml [2018-11-18 16:57:19,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:57:19,692 INFO L168 Benchmark]: Toolchain (without parser) took 30078.01 ms. Allocated memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: 1.4 GB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -67.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,693 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:57:19,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.86 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 921.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 921.7 MB in the beginning and 1.1 GB in the end (delta: -215.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,693 INFO L168 Benchmark]: Boogie Preprocessor took 50.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,694 INFO L168 Benchmark]: RCFGBuilder took 777.54 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: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,694 INFO L168 Benchmark]: TraceAbstraction took 28684.12 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -22.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,694 INFO L168 Benchmark]: Witness Printer took 109.89 ms. Allocated memory is still 2.4 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:19,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.86 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 921.7 MB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 921.7 MB in the beginning and 1.1 GB in the end (delta: -215.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 777.54 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: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28684.12 ms. Allocated memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -22.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. * Witness Printer took 109.89 ms. Allocated memory is still 2.4 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. 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))) || ((a17 <= 7 && a28 <= 10) && 9 <= a28)) || !(0 == \old(a11))) || ((((a28 <= 10 && a19 == 1) && 9 <= a28) && a17 <= 8) && a11 == 1)) || ((((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)) || (((((!(input == 0) && a19 <= 0) && a28 <= 10) && a11 == 0) && !(a28 == 0)) && a17 <= 8)) || (a17 <= 7 && a19 <= 0)) || ((a17 <= 7 && a28 <= 10) && (!(a19 == a25) || !(1 == a19)))) || (((((a19 <= 0 && !(1 == a25)) && a28 <= 10) && !(a28 == 8)) && a17 <= 8) && a11 == 1)) || !(1 == \old(a19))) || (((((!(input == 0) && a28 <= 10) && a11 == 0) && a19 == 1) && 9 <= a28) && 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, 237 locations, 1 error locations. SAFE Result, 28.6s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 21.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 1385 SDtfs, 13258 SDslu, 3087 SDs, 0 SdLazy, 20502 SolverSat, 3757 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 2202 GetRequests, 1986 SyntacticMatches, 9 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1872 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7128occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 8 AbstIntIterations, 4 AbstIntStrong, 0.9969380409098374 AbsIntWeakeningRatio, 0.2309090909090909 AbsIntAvgWeakeningVarsNumRemoved, 26.28 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1784 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 177 PreInvPairs, 282 NumberOfFragments, 903 HoareAnnotationTreeSize, 177 FomulaSimplifications, 8979 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8909 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2051 NumberOfCodeBlocks, 2051 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2733 ConstructedInterpolants, 0 QuantifiedInterpolants, 1088560 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1947 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 1469/1767 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...