./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/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 d7ee2ac819f7b75cfc0560bac3b8eea31e76c5dc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:55:17,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:55:17,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:55:17,572 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:55:17,572 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:55:17,573 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:55:17,574 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:55:17,574 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:55:17,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:55:17,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:55:17,576 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:55:17,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:55:17,577 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:55:17,578 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:55:17,579 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:55:17,579 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:55:17,580 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:55:17,581 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:55:17,582 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:55:17,583 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:55:17,584 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:55:17,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:55:17,586 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:55:17,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:55:17,587 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:55:17,587 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:55:17,588 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:55:17,589 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:55:17,589 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:55:17,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:55:17,590 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:55:17,591 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:55:17,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:55:17,591 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:55:17,591 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:55:17,592 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:55:17,592 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 06:55:17,600 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:55:17,600 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:55:17,601 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:55:17,601 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:55:17,601 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:55:17,601 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:55:17,601 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:55:17,601 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:55:17,601 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:55:17,602 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:55:17,602 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:55:17,602 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:55:17,602 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:55:17,602 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:55:17,603 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:55:17,604 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:55:17,604 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:55:17,604 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:55:17,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:55:17,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:55:17,604 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:55:17,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:55:17,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:55:17,606 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 06:55:17,606 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_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/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 -> d7ee2ac819f7b75cfc0560bac3b8eea31e76c5dc [2018-11-23 06:55:17,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:55:17,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:55:17,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:55:17,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:55:17,647 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:55:17,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c [2018-11-23 06:55:17,688 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/data/cf8bae18a/816b2b4c4363486187152b948fc88365/FLAGce6bc20b0 [2018-11-23 06:55:18,126 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:55:18,127 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/sv-benchmarks/c/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c [2018-11-23 06:55:18,136 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/data/cf8bae18a/816b2b4c4363486187152b948fc88365/FLAGce6bc20b0 [2018-11-23 06:55:18,147 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/data/cf8bae18a/816b2b4c4363486187152b948fc88365 [2018-11-23 06:55:18,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:55:18,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:55:18,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:55:18,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:55:18,154 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:55:18,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d28a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18, skipping insertion in model container [2018-11-23 06:55:18,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:55:18,205 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:55:18,478 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:55:18,481 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:55:18,563 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:55:18,572 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:55:18,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18 WrapperNode [2018-11-23 06:55:18,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:55:18,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:55:18,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:55:18,573 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:55:18,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:55:18,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:55:18,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:55:18,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:55:18,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... [2018-11-23 06:55:18,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:55:18,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:55:18,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:55:18,733 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:55:18,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:55:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 06:55:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 06:55:18,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 06:55:18,773 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-23 06:55:18,773 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-23 06:55:18,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:55:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:55:18,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 06:55:18,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 06:55:19,817 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:55:19,817 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 06:55:19,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:55:19 BoogieIcfgContainer [2018-11-23 06:55:19,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:55:19,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:55:19,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:55:19,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:55:19,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:55:18" (1/3) ... [2018-11-23 06:55:19,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46579931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:55:19, skipping insertion in model container [2018-11-23 06:55:19,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:55:18" (2/3) ... [2018-11-23 06:55:19,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46579931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:55:19, skipping insertion in model container [2018-11-23 06:55:19,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:55:19" (3/3) ... [2018-11-23 06:55:19,823 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label55_true-unreach-call_false-termination.c [2018-11-23 06:55:19,829 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:55:19,834 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 06:55:19,844 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 06:55:19,869 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:55:19,869 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:55:19,869 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:55:19,869 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:55:19,869 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:55:19,870 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:55:19,870 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:55:19,870 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:55:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-11-23 06:55:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-23 06:55:19,893 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:55:19,893 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:55:19,895 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:55:19,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:55:19,899 INFO L82 PathProgramCache]: Analyzing trace with hash 606791250, now seen corresponding path program 1 times [2018-11-23 06:55:19,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:55:19,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:19,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:55:19,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:19,930 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:55:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:55:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:55:20,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:55:20,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 06:55:20,117 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:55:20,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 06:55:20,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 06:55:20,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 06:55:20,131 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2018-11-23 06:55:21,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:55:21,333 INFO L93 Difference]: Finished difference Result 890 states and 1607 transitions. [2018-11-23 06:55:21,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 06:55:21,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-11-23 06:55:21,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:55:21,351 INFO L225 Difference]: With dead ends: 890 [2018-11-23 06:55:21,351 INFO L226 Difference]: Without dead ends: 630 [2018-11-23 06:55:21,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 06:55:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2018-11-23 06:55:21,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2018-11-23 06:55:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2018-11-23 06:55:21,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1004 transitions. [2018-11-23 06:55:21,425 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1004 transitions. Word has length 63 [2018-11-23 06:55:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:55:21,426 INFO L480 AbstractCegarLoop]: Abstraction has 630 states and 1004 transitions. [2018-11-23 06:55:21,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 06:55:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1004 transitions. [2018-11-23 06:55:21,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-11-23 06:55:21,432 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:55:21,433 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 06:55:21,433 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:55:21,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:55:21,434 INFO L82 PathProgramCache]: Analyzing trace with hash 905975074, now seen corresponding path program 1 times [2018-11-23 06:55:21,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:55:21,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:21,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:55:21,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:21,435 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:55:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:55:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:55:21,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:55:21,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 06:55:21,586 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:55:21,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 06:55:21,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 06:55:21,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 06:55:21,588 INFO L87 Difference]: Start difference. First operand 630 states and 1004 transitions. Second operand 4 states. [2018-11-23 06:55:22,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:55:22,546 INFO L93 Difference]: Finished difference Result 2346 states and 3914 transitions. [2018-11-23 06:55:22,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 06:55:22,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2018-11-23 06:55:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:55:22,556 INFO L225 Difference]: With dead ends: 2346 [2018-11-23 06:55:22,556 INFO L226 Difference]: Without dead ends: 1722 [2018-11-23 06:55:22,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 06:55:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-11-23 06:55:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2018-11-23 06:55:22,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1722 states. [2018-11-23 06:55:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2612 transitions. [2018-11-23 06:55:22,613 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2612 transitions. Word has length 175 [2018-11-23 06:55:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:55:22,614 INFO L480 AbstractCegarLoop]: Abstraction has 1722 states and 2612 transitions. [2018-11-23 06:55:22,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 06:55:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2612 transitions. [2018-11-23 06:55:22,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-11-23 06:55:22,622 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:55:22,622 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:55:22,622 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:55:22,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:55:22,622 INFO L82 PathProgramCache]: Analyzing trace with hash 338201322, now seen corresponding path program 1 times [2018-11-23 06:55:22,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:55:22,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:22,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:55:22,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:22,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:55:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:55:22,811 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:55:22,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:55:22,811 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:55:22,812 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-11-23 06:55:22,814 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:55:22,862 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:55:22,862 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:55:23,199 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:55:23,200 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1024 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1024 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-11-23 06:55:23,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:55:23,219 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:55:23,589 INFO L227 lantSequenceWeakener]: Weakened 248 states. On average, predicates are now at 78.1% of their original sizes. [2018-11-23 06:55:23,589 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:55:23,620 INFO L415 sIntCurrentIteration]: We unified 256 AI predicates to 256 [2018-11-23 06:55:23,620 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:55:23,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:55:23,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-23 06:55:23,621 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:55:23,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:55:23,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:55:23,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:55:23,623 INFO L87 Difference]: Start difference. First operand 1722 states and 2612 transitions. Second operand 6 states. [2018-11-23 06:55:31,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:55:31,596 INFO L93 Difference]: Finished difference Result 3621 states and 5456 transitions. [2018-11-23 06:55:31,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:55:31,596 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2018-11-23 06:55:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:55:31,603 INFO L225 Difference]: With dead ends: 3621 [2018-11-23 06:55:31,603 INFO L226 Difference]: Without dead ends: 1905 [2018-11-23 06:55:31,607 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:55:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2018-11-23 06:55:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1904. [2018-11-23 06:55:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2018-11-23 06:55:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2801 transitions. [2018-11-23 06:55:31,646 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2801 transitions. Word has length 257 [2018-11-23 06:55:31,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:55:31,647 INFO L480 AbstractCegarLoop]: Abstraction has 1904 states and 2801 transitions. [2018-11-23 06:55:31,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:55:31,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2801 transitions. [2018-11-23 06:55:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-11-23 06:55:31,654 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:55:31,654 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-23 06:55:31,654 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:55:31,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:55:31,655 INFO L82 PathProgramCache]: Analyzing trace with hash 895332674, now seen corresponding path program 1 times [2018-11-23 06:55:31,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:55:31,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:31,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:55:31,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:55:31,656 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:55:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:55:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 253 proven. 161 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 06:55:32,080 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:55:32,080 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:55:32,080 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 342 with the following transitions: [2018-11-23 06:55:32,080 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:55:32,083 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:55:32,083 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:55:32,218 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:55:32,218 INFO L272 AbstractInterpreter]: Visited 120 different actions 233 times. Merged at 3 different actions 3 times. Never widened. Performed 2103 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 06:55:32,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:55:32,231 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:55:32,527 INFO L227 lantSequenceWeakener]: Weakened 338 states. On average, predicates are now at 77.94% of their original sizes. [2018-11-23 06:55:32,527 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:55:32,601 INFO L415 sIntCurrentIteration]: We unified 340 AI predicates to 340 [2018-11-23 06:55:32,602 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:55:32,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:55:32,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-23 06:55:32,602 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:55:32,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 06:55:32,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 06:55:32,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 06:55:32,604 INFO L87 Difference]: Start difference. First operand 1904 states and 2801 transitions. Second operand 10 states. [2018-11-23 06:56:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:01,625 INFO L93 Difference]: Finished difference Result 4363 states and 6356 transitions. [2018-11-23 06:56:01,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 06:56:01,625 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 341 [2018-11-23 06:56:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:01,635 INFO L225 Difference]: With dead ends: 4363 [2018-11-23 06:56:01,635 INFO L226 Difference]: Without dead ends: 2647 [2018-11-23 06:56:01,639 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 349 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-23 06:56:01,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2018-11-23 06:56:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2645. [2018-11-23 06:56:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2018-11-23 06:56:01,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3630 transitions. [2018-11-23 06:56:01,691 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3630 transitions. Word has length 341 [2018-11-23 06:56:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:01,691 INFO L480 AbstractCegarLoop]: Abstraction has 2645 states and 3630 transitions. [2018-11-23 06:56:01,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 06:56:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3630 transitions. [2018-11-23 06:56:01,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-11-23 06:56:01,700 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:01,700 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:56:01,701 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:01,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:01,701 INFO L82 PathProgramCache]: Analyzing trace with hash -825639, now seen corresponding path program 1 times [2018-11-23 06:56:01,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:01,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:01,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:01,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:01,702 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 179 proven. 267 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 06:56:02,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:56:02,385 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:56:02,385 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 393 with the following transitions: [2018-11-23 06:56:02,386 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:56:02,389 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:56:02,389 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:56:02,553 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:56:02,553 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 4 different actions 4 times. Never widened. Performed 2658 root evaluator evaluations with a maximum evaluation depth of 13. Performed 2658 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-23 06:56:02,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:02,554 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:56:02,823 INFO L227 lantSequenceWeakener]: Weakened 389 states. On average, predicates are now at 77.85% of their original sizes. [2018-11-23 06:56:02,823 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:56:02,868 INFO L415 sIntCurrentIteration]: We unified 391 AI predicates to 391 [2018-11-23 06:56:02,869 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:56:02,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:56:02,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-23 06:56:02,869 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:02,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 06:56:02,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 06:56:02,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 06:56:02,870 INFO L87 Difference]: Start difference. First operand 2645 states and 3630 transitions. Second operand 10 states. [2018-11-23 06:56:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:19,345 INFO L93 Difference]: Finished difference Result 5288 states and 7301 transitions. [2018-11-23 06:56:19,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 06:56:19,346 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 392 [2018-11-23 06:56:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:19,354 INFO L225 Difference]: With dead ends: 5288 [2018-11-23 06:56:19,354 INFO L226 Difference]: Without dead ends: 2831 [2018-11-23 06:56:19,359 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 399 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 06:56:19,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2018-11-23 06:56:19,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2829. [2018-11-23 06:56:19,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2829 states. [2018-11-23 06:56:19,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 3828 transitions. [2018-11-23 06:56:19,409 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 3828 transitions. Word has length 392 [2018-11-23 06:56:19,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:19,410 INFO L480 AbstractCegarLoop]: Abstraction has 2829 states and 3828 transitions. [2018-11-23 06:56:19,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 06:56:19,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 3828 transitions. [2018-11-23 06:56:19,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-11-23 06:56:19,419 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:19,420 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:56:19,420 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:19,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:19,420 INFO L82 PathProgramCache]: Analyzing trace with hash 62409986, now seen corresponding path program 1 times [2018-11-23 06:56:19,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:19,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:19,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:19,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:19,421 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:19,750 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 304 proven. 124 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-23 06:56:19,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:56:19,750 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:56:19,751 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-11-23 06:56:19,751 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:56:19,753 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:56:19,753 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:56:23,395 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 06:56:23,395 INFO L272 AbstractInterpreter]: Visited 120 different actions 357 times. Merged at 6 different actions 17 times. Never widened. Performed 3420 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3420 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 06:56:23,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:23,397 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 06:56:24,011 INFO L227 lantSequenceWeakener]: Weakened 390 states. On average, predicates are now at 80.48% of their original sizes. [2018-11-23 06:56:24,011 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 06:56:24,065 INFO L415 sIntCurrentIteration]: We unified 392 AI predicates to 392 [2018-11-23 06:56:24,065 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 06:56:24,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:56:24,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-23 06:56:24,065 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:24,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 06:56:24,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 06:56:24,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 06:56:24,066 INFO L87 Difference]: Start difference. First operand 2829 states and 3828 transitions. Second operand 10 states. [2018-11-23 06:56:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:43,473 INFO L93 Difference]: Finished difference Result 6515 states and 9433 transitions. [2018-11-23 06:56:43,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 06:56:43,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 393 [2018-11-23 06:56:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:43,483 INFO L225 Difference]: With dead ends: 6515 [2018-11-23 06:56:43,483 INFO L226 Difference]: Without dead ends: 4058 [2018-11-23 06:56:43,489 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 403 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-23 06:56:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2018-11-23 06:56:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 4033. [2018-11-23 06:56:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4033 states. [2018-11-23 06:56:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5346 transitions. [2018-11-23 06:56:43,559 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5346 transitions. Word has length 393 [2018-11-23 06:56:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:43,560 INFO L480 AbstractCegarLoop]: Abstraction has 4033 states and 5346 transitions. [2018-11-23 06:56:43,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 06:56:43,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5346 transitions. [2018-11-23 06:56:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-11-23 06:56:43,567 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:43,567 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:56:43,568 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:43,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:43,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1394222806, now seen corresponding path program 1 times [2018-11-23 06:56:43,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:43,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:43,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:43,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:43,569 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:43,943 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 531 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-11-23 06:56:43,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:56:43,944 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:56:43,944 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 478 with the following transitions: [2018-11-23 06:56:43,944 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:56:43,946 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:56:43,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:56:50,790 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:56:50,790 INFO L272 AbstractInterpreter]: Visited 122 different actions 486 times. Merged at 8 different actions 31 times. Never widened. Performed 4617 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4617 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 06:56:50,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:50,795 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:56:50,795 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:56:50,795 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:56:50,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:50,802 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:56:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:50,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:56:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 531 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-11-23 06:56:51,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:56:51,221 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 531 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2018-11-23 06:56:51,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:56:51,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-23 06:56:51,237 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:56:51,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 06:56:51,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 06:56:51,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-23 06:56:51,238 INFO L87 Difference]: Start difference. First operand 4033 states and 5346 transitions. Second operand 9 states. [2018-11-23 06:56:54,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:54,929 INFO L93 Difference]: Finished difference Result 12388 states and 19173 transitions. [2018-11-23 06:56:54,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-23 06:56:54,929 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 477 [2018-11-23 06:56:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:54,966 INFO L225 Difference]: With dead ends: 12388 [2018-11-23 06:56:54,966 INFO L226 Difference]: Without dead ends: 8360 [2018-11-23 06:56:54,986 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 979 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=425, Invalid=1555, Unknown=0, NotChecked=0, Total=1980 [2018-11-23 06:56:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8360 states. [2018-11-23 06:56:55,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8360 to 8310. [2018-11-23 06:56:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8310 states. [2018-11-23 06:56:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8310 states to 8310 states and 11682 transitions. [2018-11-23 06:56:55,182 INFO L78 Accepts]: Start accepts. Automaton has 8310 states and 11682 transitions. Word has length 477 [2018-11-23 06:56:55,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:55,182 INFO L480 AbstractCegarLoop]: Abstraction has 8310 states and 11682 transitions. [2018-11-23 06:56:55,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 06:56:55,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8310 states and 11682 transitions. [2018-11-23 06:56:55,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-11-23 06:56:55,205 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:55,206 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:56:55,206 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:55,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:55,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1836091141, now seen corresponding path program 1 times [2018-11-23 06:56:55,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:55,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:55,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:55,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:55,207 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 661 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-11-23 06:56:55,459 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:56:55,460 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:56:55,460 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 549 with the following transitions: [2018-11-23 06:56:55,460 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:56:55,462 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:56:55,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:56:59,560 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:56:59,560 INFO L272 AbstractInterpreter]: Visited 123 different actions 487 times. Merged at 8 different actions 28 times. Widened at 1 different actions 1 times. Performed 4736 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4736 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 06:56:59,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:59,571 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:56:59,571 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:56:59,571 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:56:59,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:59,577 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:56:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:59,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:56:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 661 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-11-23 06:56:59,775 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:56:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1145 backedges. 661 proven. 2 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2018-11-23 06:57:00,000 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:00,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-23 06:57:00,000 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:00,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 06:57:00,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 06:57:00,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:57:00,002 INFO L87 Difference]: Start difference. First operand 8310 states and 11682 transitions. Second operand 9 states. [2018-11-23 06:57:01,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:01,713 INFO L93 Difference]: Finished difference Result 17272 states and 25860 transitions. [2018-11-23 06:57:01,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 06:57:01,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 548 [2018-11-23 06:57:01,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:01,758 INFO L225 Difference]: With dead ends: 17272 [2018-11-23 06:57:01,758 INFO L226 Difference]: Without dead ends: 8019 [2018-11-23 06:57:01,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1099 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2018-11-23 06:57:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8019 states. [2018-11-23 06:57:01,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8019 to 7847. [2018-11-23 06:57:01,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7847 states. [2018-11-23 06:57:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7847 states to 7847 states and 10522 transitions. [2018-11-23 06:57:02,026 INFO L78 Accepts]: Start accepts. Automaton has 7847 states and 10522 transitions. Word has length 548 [2018-11-23 06:57:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:02,026 INFO L480 AbstractCegarLoop]: Abstraction has 7847 states and 10522 transitions. [2018-11-23 06:57:02,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 06:57:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7847 states and 10522 transitions. [2018-11-23 06:57:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2018-11-23 06:57:02,044 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:02,044 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:57:02,044 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:02,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:02,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1391528455, now seen corresponding path program 1 times [2018-11-23 06:57:02,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:02,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:02,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:02,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:02,046 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 591 proven. 409 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-11-23 06:57:02,942 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:02,942 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:02,942 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 553 with the following transitions: [2018-11-23 06:57:02,943 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:02,944 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:02,944 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:11,775 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:11,775 INFO L272 AbstractInterpreter]: Visited 124 different actions 489 times. Merged at 9 different actions 26 times. Never widened. Performed 4756 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4756 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 06:57:11,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:11,777 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:11,777 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:11,777 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:11,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:11,783 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:11,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2018-11-23 06:57:11,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2018-11-23 06:57:12,086 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-23 06:57:12,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [14] total 16 [2018-11-23 06:57:12,086 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:57:12,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 06:57:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 06:57:12,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-23 06:57:12,087 INFO L87 Difference]: Start difference. First operand 7847 states and 10522 transitions. Second operand 3 states. [2018-11-23 06:57:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:12,653 INFO L93 Difference]: Finished difference Result 19266 states and 27847 transitions. [2018-11-23 06:57:12,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 06:57:12,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 552 [2018-11-23 06:57:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:12,698 INFO L225 Difference]: With dead ends: 19266 [2018-11-23 06:57:12,698 INFO L226 Difference]: Without dead ends: 11607 [2018-11-23 06:57:12,738 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 1105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-23 06:57:12,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2018-11-23 06:57:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 11243. [2018-11-23 06:57:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11243 states. [2018-11-23 06:57:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11243 states to 11243 states and 15047 transitions. [2018-11-23 06:57:12,973 INFO L78 Accepts]: Start accepts. Automaton has 11243 states and 15047 transitions. Word has length 552 [2018-11-23 06:57:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:12,973 INFO L480 AbstractCegarLoop]: Abstraction has 11243 states and 15047 transitions. [2018-11-23 06:57:12,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 06:57:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 11243 states and 15047 transitions. [2018-11-23 06:57:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-11-23 06:57:12,994 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:12,994 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:57:12,994 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:12,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:12,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1555970989, now seen corresponding path program 1 times [2018-11-23 06:57:12,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:12,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:12,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:12,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:12,996 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 576 proven. 427 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2018-11-23 06:57:13,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:13,596 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:13,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 561 with the following transitions: [2018-11-23 06:57:13,596 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:13,598 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:13,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:17,930 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:17,931 INFO L272 AbstractInterpreter]: Visited 123 different actions 487 times. Merged at 9 different actions 28 times. Never widened. Performed 4700 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4700 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-23 06:57:17,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:17,932 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:17,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:17,932 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:17,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:17,939 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:18,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 673 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-11-23 06:57:18,152 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 673 proven. 2 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2018-11-23 06:57:18,420 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:18,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-23 06:57:18,421 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:18,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 06:57:18,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 06:57:18,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-11-23 06:57:18,422 INFO L87 Difference]: Start difference. First operand 11243 states and 15047 transitions. Second operand 17 states. [2018-11-23 06:57:21,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:21,674 INFO L93 Difference]: Finished difference Result 21862 states and 30707 transitions. [2018-11-23 06:57:21,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-11-23 06:57:21,675 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 560 [2018-11-23 06:57:21,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:21,687 INFO L225 Difference]: With dead ends: 21862 [2018-11-23 06:57:21,687 INFO L226 Difference]: Without dead ends: 4327 [2018-11-23 06:57:21,749 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1209 GetRequests, 1142 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=964, Invalid=3592, Unknown=0, NotChecked=0, Total=4556 [2018-11-23 06:57:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2018-11-23 06:57:21,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 3764. [2018-11-23 06:57:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3764 states. [2018-11-23 06:57:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 4102 transitions. [2018-11-23 06:57:21,800 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 4102 transitions. Word has length 560 [2018-11-23 06:57:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:21,800 INFO L480 AbstractCegarLoop]: Abstraction has 3764 states and 4102 transitions. [2018-11-23 06:57:21,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 06:57:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 4102 transitions. [2018-11-23 06:57:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2018-11-23 06:57:21,806 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:21,806 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 06:57:21,806 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:21,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:21,807 INFO L82 PathProgramCache]: Analyzing trace with hash -429236790, now seen corresponding path program 1 times [2018-11-23 06:57:21,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:21,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:21,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:21,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:21,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 707 proven. 2 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2018-11-23 06:57:22,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:22,117 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:22,117 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 740 with the following transitions: [2018-11-23 06:57:22,117 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:22,119 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:22,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:26,202 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:26,203 INFO L272 AbstractInterpreter]: Visited 191 different actions 761 times. Merged at 9 different actions 30 times. Never widened. Performed 8361 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8361 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-23 06:57:26,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:26,207 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:26,207 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:26,207 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:26,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:26,213 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:26,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 707 proven. 2 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2018-11-23 06:57:26,511 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 707 proven. 2 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2018-11-23 06:57:26,785 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:26,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-11-23 06:57:26,786 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:26,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 06:57:26,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 06:57:26,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:57:26,787 INFO L87 Difference]: Start difference. First operand 3764 states and 4102 transitions. Second operand 10 states. [2018-11-23 06:57:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:27,680 INFO L93 Difference]: Finished difference Result 8810 states and 9793 transitions. [2018-11-23 06:57:27,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 06:57:27,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 739 [2018-11-23 06:57:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:27,688 INFO L225 Difference]: With dead ends: 8810 [2018-11-23 06:57:27,688 INFO L226 Difference]: Without dead ends: 5231 [2018-11-23 06:57:27,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1506 GetRequests, 1484 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2018-11-23 06:57:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5231 states. [2018-11-23 06:57:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5231 to 5106. [2018-11-23 06:57:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5106 states. [2018-11-23 06:57:27,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5106 states to 5106 states and 5529 transitions. [2018-11-23 06:57:27,746 INFO L78 Accepts]: Start accepts. Automaton has 5106 states and 5529 transitions. Word has length 739 [2018-11-23 06:57:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:27,747 INFO L480 AbstractCegarLoop]: Abstraction has 5106 states and 5529 transitions. [2018-11-23 06:57:27,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 06:57:27,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5106 states and 5529 transitions. [2018-11-23 06:57:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2018-11-23 06:57:27,753 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:27,754 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 06:57:27,754 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:27,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:27,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2068688985, now seen corresponding path program 1 times [2018-11-23 06:57:27,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:27,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:27,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:27,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:27,755 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 866 proven. 2 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2018-11-23 06:57:28,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:28,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:28,065 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 825 with the following transitions: [2018-11-23 06:57:28,065 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:28,067 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:28,067 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:32,117 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:32,117 INFO L272 AbstractInterpreter]: Visited 192 different actions 764 times. Merged at 10 different actions 29 times. Never widened. Performed 8399 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8399 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 06:57:32,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:32,126 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:32,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:32,127 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:32,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:32,132 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:32,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 866 proven. 2 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2018-11-23 06:57:32,394 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 866 proven. 2 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2018-11-23 06:57:32,675 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:32,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2018-11-23 06:57:32,676 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:32,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:57:32,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:57:32,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-23 06:57:32,677 INFO L87 Difference]: Start difference. First operand 5106 states and 5529 transitions. Second operand 6 states. [2018-11-23 06:57:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:33,269 INFO L93 Difference]: Finished difference Result 9204 states and 9874 transitions. [2018-11-23 06:57:33,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 06:57:33,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 824 [2018-11-23 06:57:33,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:33,277 INFO L225 Difference]: With dead ends: 9204 [2018-11-23 06:57:33,278 INFO L226 Difference]: Without dead ends: 4270 [2018-11-23 06:57:33,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1662 GetRequests, 1649 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-11-23 06:57:33,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2018-11-23 06:57:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3878. [2018-11-23 06:57:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3878 states. [2018-11-23 06:57:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 3999 transitions. [2018-11-23 06:57:33,333 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 3999 transitions. Word has length 824 [2018-11-23 06:57:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:33,334 INFO L480 AbstractCegarLoop]: Abstraction has 3878 states and 3999 transitions. [2018-11-23 06:57:33,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:57:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 3999 transitions. [2018-11-23 06:57:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2018-11-23 06:57:33,341 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:33,342 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 06:57:33,342 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:33,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:33,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1082900759, now seen corresponding path program 1 times [2018-11-23 06:57:33,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:33,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:33,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:33,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:33,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 697 proven. 840 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2018-11-23 06:57:34,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:34,570 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:34,571 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 833 with the following transitions: [2018-11-23 06:57:34,571 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:34,573 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:34,573 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:38,898 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:38,898 INFO L272 AbstractInterpreter]: Visited 192 different actions 769 times. Merged at 10 different actions 34 times. Widened at 1 different actions 2 times. Performed 8499 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8499 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-23 06:57:38,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:38,903 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:38,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:38,903 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:38,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:38,915 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:39,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:39,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 1391 proven. 2 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2018-11-23 06:57:39,448 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 756 proven. 196 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2018-11-23 06:57:40,030 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:40,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 19 [2018-11-23 06:57:40,030 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:40,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 06:57:40,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 06:57:40,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-11-23 06:57:40,032 INFO L87 Difference]: Start difference. First operand 3878 states and 3999 transitions. Second operand 16 states. [2018-11-23 06:57:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:42,516 INFO L93 Difference]: Finished difference Result 8253 states and 8528 transitions. [2018-11-23 06:57:42,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-23 06:57:42,516 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 832 [2018-11-23 06:57:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:42,521 INFO L225 Difference]: With dead ends: 8253 [2018-11-23 06:57:42,521 INFO L226 Difference]: Without dead ends: 3691 [2018-11-23 06:57:42,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1726 GetRequests, 1680 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=466, Invalid=1790, Unknown=0, NotChecked=0, Total=2256 [2018-11-23 06:57:42,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2018-11-23 06:57:42,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3550. [2018-11-23 06:57:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3550 states. [2018-11-23 06:57:42,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 3659 transitions. [2018-11-23 06:57:42,561 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 3659 transitions. Word has length 832 [2018-11-23 06:57:42,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:42,561 INFO L480 AbstractCegarLoop]: Abstraction has 3550 states and 3659 transitions. [2018-11-23 06:57:42,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 06:57:42,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 3659 transitions. [2018-11-23 06:57:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2018-11-23 06:57:42,565 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:42,566 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:57:42,566 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:42,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:42,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1676542447, now seen corresponding path program 1 times [2018-11-23 06:57:42,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:42,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:42,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:42,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:42,567 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 660 proven. 224 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2018-11-23 06:57:42,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:42,868 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:42,868 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 853 with the following transitions: [2018-11-23 06:57:42,869 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:42,871 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:42,871 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:46,924 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:46,924 INFO L272 AbstractInterpreter]: Visited 193 different actions 775 times. Merged at 10 different actions 36 times. Widened at 1 different actions 1 times. Performed 8529 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8529 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 06:57:46,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:46,925 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:46,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:46,925 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:46,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:46,932 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:47,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 1590 proven. 2 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2018-11-23 06:57:47,282 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 660 proven. 224 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2018-11-23 06:57:47,547 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:47,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-11-23 06:57:47,548 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:47,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 06:57:47,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 06:57:47,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-23 06:57:47,548 INFO L87 Difference]: Start difference. First operand 3550 states and 3659 transitions. Second operand 7 states. [2018-11-23 06:57:48,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:48,002 INFO L93 Difference]: Finished difference Result 6485 states and 6698 transitions. [2018-11-23 06:57:48,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 06:57:48,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 852 [2018-11-23 06:57:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:48,006 INFO L225 Difference]: With dead ends: 6485 [2018-11-23 06:57:48,006 INFO L226 Difference]: Without dead ends: 4047 [2018-11-23 06:57:48,008 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1714 GetRequests, 1703 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:57:48,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4047 states. [2018-11-23 06:57:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4047 to 3914. [2018-11-23 06:57:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3914 states. [2018-11-23 06:57:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 4037 transitions. [2018-11-23 06:57:48,048 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 4037 transitions. Word has length 852 [2018-11-23 06:57:48,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:48,048 INFO L480 AbstractCegarLoop]: Abstraction has 3914 states and 4037 transitions. [2018-11-23 06:57:48,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 06:57:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 4037 transitions. [2018-11-23 06:57:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2018-11-23 06:57:48,053 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:48,053 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 06:57:48,053 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:48,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:48,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1431515303, now seen corresponding path program 1 times [2018-11-23 06:57:48,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:48,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:48,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:48,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:48,055 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 644 proven. 445 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2018-11-23 06:57:48,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:48,710 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:48,710 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 913 with the following transitions: [2018-11-23 06:57:48,710 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:48,712 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:48,712 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:57:52,778 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:57:52,779 INFO L272 AbstractInterpreter]: Visited 193 different actions 774 times. Merged at 10 different actions 35 times. Widened at 1 different actions 1 times. Performed 8501 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8501 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 6 different actions. Largest state had 24 variables. [2018-11-23 06:57:52,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:52,782 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:57:52,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:52,783 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:57:52,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:52,789 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:57:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:52,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:57:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 1017 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2018-11-23 06:57:53,237 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:57:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2424 backedges. 1017 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2018-11-23 06:57:53,962 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:57:53,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-23 06:57:53,962 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:57:53,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 06:57:53,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 06:57:53,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-23 06:57:53,963 INFO L87 Difference]: Start difference. First operand 3914 states and 4037 transitions. Second operand 10 states. [2018-11-23 06:57:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:57:55,112 INFO L93 Difference]: Finished difference Result 7642 states and 7890 transitions. [2018-11-23 06:57:55,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 06:57:55,112 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 912 [2018-11-23 06:57:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:57:55,116 INFO L225 Difference]: With dead ends: 7642 [2018-11-23 06:57:55,116 INFO L226 Difference]: Without dead ends: 2772 [2018-11-23 06:57:55,120 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1863 GetRequests, 1833 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2018-11-23 06:57:55,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2018-11-23 06:57:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2586. [2018-11-23 06:57:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2586 states. [2018-11-23 06:57:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 2629 transitions. [2018-11-23 06:57:55,142 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 2629 transitions. Word has length 912 [2018-11-23 06:57:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:57:55,142 INFO L480 AbstractCegarLoop]: Abstraction has 2586 states and 2629 transitions. [2018-11-23 06:57:55,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 06:57:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 2629 transitions. [2018-11-23 06:57:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2018-11-23 06:57:55,148 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:57:55,149 INFO L402 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-23 06:57:55,149 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:57:55,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:57:55,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2043956975, now seen corresponding path program 1 times [2018-11-23 06:57:55,149 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:57:55,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:55,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:57:55,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:57:55,150 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:57:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:57:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4139 backedges. 1837 proven. 355 refuted. 0 times theorem prover too weak. 1947 trivial. 0 not checked. [2018-11-23 06:57:55,985 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:57:55,985 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:57:55,985 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1159 with the following transitions: [2018-11-23 06:57:55,985 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:57:55,987 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:57:55,987 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:58:00,029 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:58:00,029 INFO L272 AbstractInterpreter]: Visited 195 different actions 786 times. Merged at 12 different actions 39 times. Never widened. Performed 8640 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8640 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-23 06:58:00,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:58:00,030 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:58:00,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:58:00,031 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:58:00,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:58:00,038 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:58:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:58:00,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:58:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4139 backedges. 2602 proven. 6 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2018-11-23 06:58:00,617 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:58:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4139 backedges. 1837 proven. 359 refuted. 0 times theorem prover too weak. 1943 trivial. 0 not checked. [2018-11-23 06:58:01,277 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:58:01,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-23 06:58:01,277 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:58:01,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 06:58:01,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 06:58:01,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-23 06:58:01,278 INFO L87 Difference]: Start difference. First operand 2586 states and 2629 transitions. Second operand 9 states. [2018-11-23 06:58:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:58:01,892 INFO L93 Difference]: Finished difference Result 4090 states and 4176 transitions. [2018-11-23 06:58:01,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 06:58:01,892 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1158 [2018-11-23 06:58:01,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:58:01,895 INFO L225 Difference]: With dead ends: 4090 [2018-11-23 06:58:01,895 INFO L226 Difference]: Without dead ends: 2984 [2018-11-23 06:58:01,897 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2336 GetRequests, 2315 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2018-11-23 06:58:01,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2018-11-23 06:58:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2770. [2018-11-23 06:58:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2018-11-23 06:58:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 2814 transitions. [2018-11-23 06:58:01,920 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 2814 transitions. Word has length 1158 [2018-11-23 06:58:01,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:58:01,921 INFO L480 AbstractCegarLoop]: Abstraction has 2770 states and 2814 transitions. [2018-11-23 06:58:01,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 06:58:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 2814 transitions. [2018-11-23 06:58:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1712 [2018-11-23 06:58:01,933 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:58:01,933 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:58:01,933 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:58:01,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:58:01,934 INFO L82 PathProgramCache]: Analyzing trace with hash -2024251614, now seen corresponding path program 1 times [2018-11-23 06:58:01,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:58:01,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:58:01,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:58:01,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:58:01,935 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:58:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:58:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 1999 proven. 5464 refuted. 0 times theorem prover too weak. 1635 trivial. 0 not checked. [2018-11-23 06:58:05,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:58:05,205 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 06:58:05,206 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1712 with the following transitions: [2018-11-23 06:58:05,206 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-11-23 06:58:05,208 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 06:58:05,208 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 06:58:09,260 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 06:58:09,260 INFO L272 AbstractInterpreter]: Visited 202 different actions 812 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 9092 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9092 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-23 06:58:09,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:58:09,263 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 06:58:09,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 06:58:09,263 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 06:58:09,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:58:09,272 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 06:58:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:58:09,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:58:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 3072 proven. 124 refuted. 0 times theorem prover too weak. 5902 trivial. 0 not checked. [2018-11-23 06:58:10,351 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 06:58:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 3112 proven. 197 refuted. 0 times theorem prover too weak. 5789 trivial. 0 not checked. [2018-11-23 06:58:11,976 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 06:58:11,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 9, 10] total 41 [2018-11-23 06:58:11,977 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 06:58:11,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-11-23 06:58:11,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-11-23 06:58:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1453, Unknown=0, NotChecked=0, Total=1640 [2018-11-23 06:58:11,978 INFO L87 Difference]: Start difference. First operand 2770 states and 2814 transitions. Second operand 34 states. [2018-11-23 06:58:19,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:58:19,945 INFO L93 Difference]: Finished difference Result 4302 states and 4411 transitions. [2018-11-23 06:58:19,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-11-23 06:58:19,946 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 1711 [2018-11-23 06:58:19,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:58:19,947 INFO L225 Difference]: With dead ends: 4302 [2018-11-23 06:58:19,947 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 06:58:19,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3548 GetRequests, 3437 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3173 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2240, Invalid=9750, Unknown=0, NotChecked=0, Total=11990 [2018-11-23 06:58:19,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 06:58:19,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 06:58:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 06:58:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:58:19,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1711 [2018-11-23 06:58:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:58:19,953 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:58:19,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-11-23 06:58:19,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:58:19,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:58:19,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 06:58:20,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,711 WARN L180 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 548 DAG size of output: 353 [2018-11-23 06:58:20,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,931 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:20,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 06:58:21,232 WARN L180 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 331 [2018-11-23 06:58:22,614 WARN L180 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 356 DAG size of output: 143 [2018-11-23 06:58:23,708 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 341 DAG size of output: 102 [2018-11-23 06:58:24,658 WARN L180 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 106 [2018-11-23 06:58:24,660 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 06:58:24,660 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-23 06:58:24,660 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,661 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 06:58:24,662 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,663 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-23 06:58:24,664 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-23 06:58:24,665 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-23 06:58:24,666 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse20 (<= |old(~a12~0)| ~a12~0)) (.cse21 (= 1 ~a24~0)) (.cse26 (= 6 |old(~a21~0)|)) (.cse4 (<= ~a12~0 |old(~a12~0)|)) (.cse10 (= ~a24~0 |old(~a24~0)|)) (.cse11 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= |old(~a15~0)| ~a15~0)) (.cse28 (= 0 |old(~a21~0)|)) (.cse7 (< |old(~a12~0)| 81)) (.cse24 (= 10 |old(~a21~0)|)) (.cse27 (< 80 |old(~a12~0)|)) (.cse17 (< |old(~a21~0)| 10)) (.cse2 (not (= 1 |old(~a24~0)|))) (.cse14 (not (= 8 |old(~a15~0)|))) (.cse30 (= |calculate_output_#in~input| 0))) (let ((.cse25 (and (or (or (not .cse24) .cse14) .cse2 .cse30) (or .cse27 .cse17 .cse2 .cse14 .cse30))) (.cse12 (or .cse28 .cse7 (< 8 |old(~a21~0)|) .cse30)) (.cse31 (not (= 7 |old(~a21~0)|))) (.cse18 (< 11 |old(~a12~0)|)) (.cse8 (< 7 |old(~a15~0)|)) (.cse6 (and .cse4 .cse10 .cse11 .cse5)) (.cse22 (< |old(~a21~0)| 9)) (.cse23 (<= |old(~a12~0)| 80)) (.cse9 (= ~a12~0 |old(~a12~0)|)) (.cse29 (= 8 ~a15~0)) (.cse13 (= ~a24~0 1)) (.cse1 (+ |old(~a12~0)| 43)) (.cse0 (not .cse26)) (.cse3 (not (= 5 |old(~a15~0)|))) (.cse16 (and .cse4 .cse20 .cse11 .cse21 (= 9 ~a15~0))) (.cse15 (not (= 9 |old(~a15~0)|))) (.cse19 (not (= 8 |old(~a21~0)|)))) (and (or .cse0 (<= .cse1 0) .cse2 .cse3 (< 0 (+ ~a12~0 43))) (or (not (= 6 |old(~a15~0)|)) (and .cse4 .cse5)) (or .cse6 .cse2 .cse3) (or .cse0 .cse7 .cse2 .cse8 (and .cse9 .cse10 .cse11 .cse5)) (or .cse12 .cse0 (and (and .cse9 .cse13) .cse11 (= ~a15~0 |old(~a15~0)|)) .cse2 .cse14) (or .cse0 .cse15 .cse16 .cse2 (< 95434 |old(~a12~0)|) (<= |old(~a12~0)| 95380)) (or .cse15 .cse17 .cse16 .cse2 .cse18) (or .cse2 .cse6 .cse8 .cse19) (or (and .cse4 .cse20 .cse11 .cse5 .cse21) .cse22 .cse2 .cse23 .cse8 .cse24) (or .cse25 .cse7 (and .cse9 (and .cse13 .cse11 .cse5))) (or .cse26 .cse27 .cse28 .cse2 .cse14 (and .cse4 .cse20 .cse11 .cse29 .cse13) .cse30 .cse24) (or .cse27 .cse2 .cse6 .cse8) (or (< 0 (+ |old(~a12~0)| 460233)) .cse31 .cse2 .cse8 .cse20) (or .cse25 .cse18 (and .cse20 (and .cse4 .cse11 .cse5 .cse13))) (or .cse12 .cse2 .cse14 (< 73282 |old(~a12~0)|) (and .cse9 .cse11 .cse5 .cse13)) (or .cse15 .cse31 .cse7 .cse2 .cse16) (or .cse16 .cse15 .cse2 .cse18 .cse19) (or .cse17 .cse2 .cse8 .cse6) (or (or .cse15 .cse2) (< 72 |old(~a12~0)|) .cse16 (<= |old(~a12~0)| 18) .cse19) (or .cse22 .cse15 .cse16 .cse2 .cse23) (or .cse0 (and .cse9 .cse11 .cse29 .cse13) .cse2 .cse14 .cse30 (< 0 .cse1)) (or .cse0 (< 0 (+ |old(~a12~0)| 49)) .cse3 (and .cse4 .cse20 .cse10 .cse11 .cse5)) (or .cse16 .cse15 .cse7 .cse2 .cse19)))) [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,667 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-23 06:58:24,668 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,669 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-23 06:58:24,670 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-23 06:58:24,671 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-23 06:58:24,672 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-23 06:58:24,673 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,674 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-23 06:58:24,675 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-23 06:58:24,676 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-23 06:58:24,676 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-23 06:58:24,676 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 06:58:24,676 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-23 06:58:24,676 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 06:58:24,676 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 06:58:24,676 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (= 7 ~a21~0) (<= |old(~a12~0)| ~a12~0) (<= (+ ~a12~0 49) 0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1))) [2018-11-23 06:58:24,676 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-23 06:58:24,676 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= 81 ~a12~0)) (.cse16 (<= ~a12~0 80)) (.cse17 (not (= ~a21~0 0))) (.cse12 (not (= main_~input~0 0))) (.cse13 (= ~a15~0 8))) (let ((.cse7 (<= 10 ~a21~0)) (.cse6 (and .cse16 .cse17 .cse12 .cse13)) (.cse9 (<= ~a12~0 11)) (.cse2 (= ~a21~0 8)) (.cse4 (= 6 ~a21~0)) (.cse14 (and .cse0 (<= ~a21~0 8) (<= |old(~a12~0)| 11) (and .cse17 .cse12) (<= ~a15~0 |old(~a15~0)|))) (.cse8 (= ~a24~0 |old(~a24~0)|)) (.cse11 (<= ~a15~0 7)) (.cse10 (<= 9 ~a21~0)) (.cse1 (= 1 ~a24~0)) (.cse3 (= 9 ~a15~0)) (.cse15 (= ~a21~0 6)) (.cse5 (= 5 ~a15~0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a15~0)|)) (and .cse4 (<= ~a12~0 95434) .cse1 .cse3 (< 95380 ~a12~0)) (and .cse1 .cse5) (and (and .cse6 .cse7 .cse8) .cse9) (and .cse10 .cse1 .cse11) (not (= 7 |old(~a21~0)|)) (and .cse0 (and .cse12 (and .cse13 (= ~a21~0 10)) (= ~a24~0 1))) (not (= 0 (+ |old(~a12~0)| 49))) (and (<= ~a12~0 73282) .cse14 .cse1 (= 8 ~a15~0)) (and .cse15 .cse1 .cse11) (and .cse7 .cse1 .cse9 .cse3) (and (not (= 10 ~a21~0)) (and .cse6 .cse8) (not .cse4)) (and (and (<= (+ ~a12~0 43) 0) .cse12) .cse4 .cse8 (= ~a15~0 |old(~a15~0)|)) (and .cse2 .cse1 .cse9 .cse3) (and .cse1 .cse11 .cse2) (and (< 18 ~a12~0) .cse8 (<= ~a12~0 72) (and .cse2 .cse3)) (and .cse4 .cse14 .cse8) (= 6 ~a15~0) (and .cse16 .cse1 .cse11) (and (= 7 ~a21~0) (and .cse0 .cse1 .cse3)) (and .cse10 .cse1 (< 80 ~a12~0) .cse3) (not (= 1 |old(~a24~0)|)) (and .cse15 .cse5 (<= (+ ~a12~0 49) 0))))) [2018-11-23 06:58:24,676 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-23 06:58:24,677 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-23 06:58:24,677 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= 81 ~a12~0)) (.cse7 (= ~a24~0 |old(~a24~0)|)) (.cse5 (not (= ~a21~0 0))) (.cse17 (= ~a24~0 1))) (let ((.cse6 (= ~a15~0 8)) (.cse2 (= ~a21~0 8)) (.cse15 (<= 10 ~a21~0)) (.cse16 (<= ~a12~0 11)) (.cse4 (<= ~a12~0 80)) (.cse13 (<= ~a15~0 7)) (.cse12 (<= 9 ~a21~0)) (.cse1 (= 1 ~a24~0)) (.cse3 (= 9 ~a15~0)) (.cse8 (= 6 ~a21~0)) (.cse9 (and .cse0 (<= ~a21~0 8) (<= |old(~a12~0)| 11) .cse7 (and .cse5 .cse17))) (.cse11 (= ~a15~0 |old(~a15~0)|)) (.cse14 (= ~a21~0 6)) (.cse10 (= 5 ~a15~0))) (or (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a15~0)|)) (and (not (= 10 ~a21~0)) (and (and .cse4 .cse5 .cse6) .cse7) (not .cse8)) (and .cse8 (<= ~a12~0 95434) .cse1 .cse3 (< 95380 ~a12~0)) (and (<= ~a12~0 73282) .cse9 (= 8 ~a15~0)) (and .cse1 .cse10) (and (and (<= (+ ~a12~0 43) 0) .cse5) .cse7 .cse11) (and .cse12 .cse1 .cse13) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse14 .cse1 .cse13) (and .cse15 .cse1 .cse16 .cse3) (and .cse2 .cse1 .cse16 .cse3) (and .cse1 .cse13 .cse2) (and .cse0 (and .cse6 .cse17 (= ~a21~0 10))) (and (< 18 ~a12~0) .cse7 (<= ~a12~0 72) (and .cse2 .cse3)) (and (and .cse15 (<= ~a15~0 |old(~a15~0)|) .cse7) .cse16) (= 6 ~a15~0) (and .cse4 .cse1 .cse13) (and (= 7 ~a21~0) (and .cse0 .cse1 .cse3)) (and .cse12 .cse1 (< 80 ~a12~0) .cse3) (not (= 1 |old(~a24~0)|)) (and .cse8 .cse9 .cse11) (and .cse14 .cse10 (<= (+ ~a12~0 49) 0))))) [2018-11-23 06:58:24,677 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-11-23 06:58:24,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:58:24 BoogieIcfgContainer [2018-11-23 06:58:24,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:58:24,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:58:24,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:58:24,700 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:58:24,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:55:19" (3/4) ... [2018-11-23 06:58:24,703 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:58:24,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 06:58:24,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-23 06:58:24,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 06:58:24,721 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 06:58:24,721 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 06:58:24,747 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((81 <= a12 && 1 == a24) && a21 == 8) && 9 == a15) || !(8 == \old(a15))) || ((!(10 == a21) && ((a12 <= 80 && !(a21 == 0)) && a15 == 8) && a24 == \old(a24)) && !(6 == a21))) || ((((6 == a21 && a12 <= 95434) && 1 == a24) && 9 == a15) && 95380 < a12)) || ((a12 <= 73282 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && 8 == a15)) || (1 == a24 && 5 == a15)) || (((a12 + 43 <= 0 && !(a21 == 0)) && a24 == \old(a24)) && a15 == \old(a15))) || ((9 <= a21 && 1 == a24) && a15 <= 7)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || ((a21 == 6 && 1 == a24) && a15 <= 7)) || (((10 <= a21 && 1 == a24) && a12 <= 11) && 9 == a15)) || (((a21 == 8 && 1 == a24) && a12 <= 11) && 9 == a15)) || ((1 == a24 && a15 <= 7) && a21 == 8)) || (81 <= a12 && (a15 == 8 && a24 == 1) && a21 == 10)) || (((18 < a12 && a24 == \old(a24)) && a12 <= 72) && a21 == 8 && 9 == a15)) || (((10 <= a21 && a15 <= \old(a15)) && a24 == \old(a24)) && a12 <= 11)) || 6 == a15) || ((a12 <= 80 && 1 == a24) && a15 <= 7)) || (7 == a21 && (81 <= a12 && 1 == a24) && 9 == a15)) || (((9 <= a21 && 1 == a24) && 80 < a12) && 9 == a15)) || !(1 == \old(a24))) || ((6 == a21 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && a15 == \old(a15))) || ((a21 == 6 && 5 == a15) && a12 + 49 <= 0) [2018-11-23 06:58:24,808 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e831a74a-7ff3-42ae-9c61-49603f3fbb6f/bin-2019/utaipan/witness.graphml [2018-11-23 06:58:24,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:58:24,808 INFO L168 Benchmark]: Toolchain (without parser) took 186658.43 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 953.9 MB in the beginning and 4.3 GB in the end (delta: -3.3 GB). Peak memory consumption was 711.5 MB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,809 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:58:24,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.51 ms. Allocated memory is still 1.0 GB. Free memory was 953.9 MB in the beginning and 916.3 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 916.3 MB in the beginning and 1.1 GB in the end (delta: -227.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,810 INFO L168 Benchmark]: Boogie Preprocessor took 49.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,810 INFO L168 Benchmark]: RCFGBuilder took 1084.60 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: 122.3 MB). Peak memory consumption was 122.3 MB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,810 INFO L168 Benchmark]: TraceAbstraction took 184881.09 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 4.4 GB in the end (delta: -3.3 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,810 INFO L168 Benchmark]: Witness Printer took 108.45 ms. Allocated memory is still 5.1 GB. Free memory was 4.4 GB in the beginning and 4.3 GB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:58:24,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 421.51 ms. Allocated memory is still 1.0 GB. Free memory was 953.9 MB in the beginning and 916.3 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 916.3 MB in the beginning and 1.1 GB in the end (delta: -227.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.66 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 1084.60 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: 122.3 MB). Peak memory consumption was 122.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 184881.09 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 4.4 GB in the end (delta: -3.3 GB). Peak memory consumption was 4.3 GB. Max. memory is 11.5 GB. * Witness Printer took 108.45 ms. Allocated memory is still 5.1 GB. Free memory was 4.4 GB in the beginning and 4.3 GB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((81 <= a12 && 1 == a24) && a21 == 8) && 9 == a15) || !(8 == \old(a15))) || ((!(10 == a21) && ((a12 <= 80 && !(a21 == 0)) && a15 == 8) && a24 == \old(a24)) && !(6 == a21))) || ((((6 == a21 && a12 <= 95434) && 1 == a24) && 9 == a15) && 95380 < a12)) || ((a12 <= 73282 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && 8 == a15)) || (1 == a24 && 5 == a15)) || (((a12 + 43 <= 0 && !(a21 == 0)) && a24 == \old(a24)) && a15 == \old(a15))) || ((9 <= a21 && 1 == a24) && a15 <= 7)) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || ((a21 == 6 && 1 == a24) && a15 <= 7)) || (((10 <= a21 && 1 == a24) && a12 <= 11) && 9 == a15)) || (((a21 == 8 && 1 == a24) && a12 <= 11) && 9 == a15)) || ((1 == a24 && a15 <= 7) && a21 == 8)) || (81 <= a12 && (a15 == 8 && a24 == 1) && a21 == 10)) || (((18 < a12 && a24 == \old(a24)) && a12 <= 72) && a21 == 8 && 9 == a15)) || (((10 <= a21 && a15 <= \old(a15)) && a24 == \old(a24)) && a12 <= 11)) || 6 == a15) || ((a12 <= 80 && 1 == a24) && a15 <= 7)) || (7 == a21 && (81 <= a12 && 1 == a24) && 9 == a15)) || (((9 <= a21 && 1 == a24) && 80 < a12) && 9 == a15)) || !(1 == \old(a24))) || ((6 == a21 && (((81 <= a12 && a21 <= 8) && \old(a12) <= 11) && a24 == \old(a24)) && !(a21 == 0) && a24 == 1) && a15 == \old(a15))) || ((a21 == 6 && 5 == a15) && a12 + 49 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 184.8s OverallTime, 17 OverallIterations, 14 TraceHistogramMax, 98.8s AutomataDifference, 0.0s DeadEndRemovalTime, 4.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 2105 SDtfs, 37226 SDslu, 3559 SDs, 0 SdLazy, 45711 SolverSat, 6140 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.8s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 20243 GetRequests, 19784 SyntacticMatches, 20 SemanticMatches, 439 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6114 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11243occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 57.2s AbstIntTime, 15 AbstIntIterations, 4 AbstIntStrong, 0.9973783193390653 AbsIntWeakeningRatio, 0.08846990572878898 AbsIntAvgWeakeningVarsNumRemoved, 16.210297316896302 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 2370 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 650 PreInvPairs, 994 NumberOfFragments, 1480 HoareAnnotationTreeSize, 650 FomulaSimplifications, 117455 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 78232 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 19951 NumberOfCodeBlocks, 19951 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 29077 ConstructedInterpolants, 0 QuantifiedInterpolants, 90245326 SizeOfPredicates, 21 NumberOfNonLiveVariables, 13085 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 39 InterpolantComputations, 4 PerfectInterpolantSequences, 74336/84196 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...