./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 41d17b9aa5f2178c80003b4f705c8a61e02072b8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 02:10:11,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:10:11,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:10:11,719 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:10:11,720 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:10:11,720 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:10:11,721 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:10:11,722 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:10:11,722 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:10:11,723 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:10:11,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:10:11,724 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:10:11,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:10:11,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:10:11,725 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:10:11,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:10:11,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:10:11,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:10:11,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:10:11,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:10:11,729 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:10:11,730 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:10:11,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:10:11,731 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:10:11,731 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:10:11,732 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:10:11,732 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:10:11,733 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:10:11,733 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:10:11,733 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:10:11,734 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:10:11,734 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:10:11,734 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:10:11,734 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:10:11,735 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:10:11,735 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:10:11,735 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 02:10:11,742 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:10:11,742 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:10:11,743 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 02:10:11,743 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 02:10:11,743 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 02:10:11,743 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 02:10:11,743 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 02:10:11,743 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 02:10:11,743 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 02:10:11,744 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 02:10:11,744 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 02:10:11,744 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 02:10:11,744 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 02:10:11,744 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:10:11,744 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 02:10:11,745 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:10:11,746 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 02:10:11,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:10:11,746 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:10:11,746 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 02:10:11,746 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 02:10:11,746 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:10:11,746 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:10:11,747 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 02:10:11,747 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 02:10:11,747 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 02:10:11,747 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 02:10:11,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 02:10:11,747 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 02:10:11,747 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_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 -> 41d17b9aa5f2178c80003b4f705c8a61e02072b8 [2018-12-02 02:10:11,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:10:11,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:10:11,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:10:11,774 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:10:11,774 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:10:11,775 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-12-02 02:10:11,811 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/data/0f732d38c/70b64e863c0148ceaaa229853ae3a447/FLAG1c8b0b86f [2018-12-02 02:10:12,263 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:10:12,263 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/sv-benchmarks/c/eca-rers2012/Problem14_label24_true-unreach-call_false-termination.c [2018-12-02 02:10:12,271 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/data/0f732d38c/70b64e863c0148ceaaa229853ae3a447/FLAG1c8b0b86f [2018-12-02 02:10:12,279 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/data/0f732d38c/70b64e863c0148ceaaa229853ae3a447 [2018-12-02 02:10:12,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:10:12,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:10:12,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:10:12,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:10:12,285 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:10:12,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56acabfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12, skipping insertion in model container [2018-12-02 02:10:12,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:10:12,320 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:10:12,517 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:10:12,520 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:10:12,622 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:10:12,632 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:10:12,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12 WrapperNode [2018-12-02 02:10:12,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:10:12,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:10:12,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:10:12,633 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:10:12,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:10:12,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:10:12,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:10:12,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:10:12,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... [2018-12-02 02:10:12,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:10:12,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:10:12,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:10:12,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:10:12,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:10:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 02:10:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 02:10:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 02:10:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 02:10:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:10:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:10:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 02:10:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 02:10:13,429 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:10:13,429 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 02:10:13,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:13 BoogieIcfgContainer [2018-12-02 02:10:13,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:10:13,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 02:10:13,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 02:10:13,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 02:10:13,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:10:12" (1/3) ... [2018-12-02 02:10:13,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c3e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:10:13, skipping insertion in model container [2018-12-02 02:10:13,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:10:12" (2/3) ... [2018-12-02 02:10:13,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c3e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:10:13, skipping insertion in model container [2018-12-02 02:10:13,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:13" (3/3) ... [2018-12-02 02:10:13,436 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label24_true-unreach-call_false-termination.c [2018-12-02 02:10:13,445 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 02:10:13,451 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 02:10:13,464 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 02:10:13,492 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 02:10:13,492 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 02:10:13,492 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 02:10:13,492 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:10:13,492 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:10:13,492 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 02:10:13,492 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:10:13,492 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 02:10:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-02 02:10:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 02:10:13,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:10:13,515 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] [2018-12-02 02:10:13,516 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:10:13,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:13,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2116109586, now seen corresponding path program 1 times [2018-12-02 02:10:13,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:10:13,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:13,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:10:13,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:13,552 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:10:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:10:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:10:13,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:10:13,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 02:10:13,694 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:10:13,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 02:10:13,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 02:10:13,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 02:10:13,707 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-12-02 02:10:14,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:10:14,257 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2018-12-02 02:10:14,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 02:10:14,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 02:10:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:10:14,266 INFO L225 Difference]: With dead ends: 688 [2018-12-02 02:10:14,266 INFO L226 Difference]: Without dead ends: 372 [2018-12-02 02:10:14,269 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 02:10:14,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-12-02 02:10:14,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2018-12-02 02:10:14,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-12-02 02:10:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 602 transitions. [2018-12-02 02:10:14,305 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 602 transitions. Word has length 47 [2018-12-02 02:10:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:10:14,305 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 602 transitions. [2018-12-02 02:10:14,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 02:10:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 602 transitions. [2018-12-02 02:10:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-12-02 02:10:14,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:10:14,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:10:14,308 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:10:14,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:14,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1939521290, now seen corresponding path program 1 times [2018-12-02 02:10:14,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:10:14,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:14,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:10:14,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:14,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:10:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:10:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:10:14,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:10:14,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 02:10:14,414 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:10:14,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 02:10:14,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 02:10:14,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 02:10:14,416 INFO L87 Difference]: Start difference. First operand 372 states and 602 transitions. Second operand 6 states. [2018-12-02 02:10:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:10:14,984 INFO L93 Difference]: Finished difference Result 936 states and 1526 transitions. [2018-12-02 02:10:14,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 02:10:14,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-12-02 02:10:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:10:14,986 INFO L225 Difference]: With dead ends: 936 [2018-12-02 02:10:14,986 INFO L226 Difference]: Without dead ends: 570 [2018-12-02 02:10:14,987 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:10:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2018-12-02 02:10:15,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 562. [2018-12-02 02:10:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2018-12-02 02:10:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 814 transitions. [2018-12-02 02:10:15,003 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 814 transitions. Word has length 121 [2018-12-02 02:10:15,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:10:15,003 INFO L480 AbstractCegarLoop]: Abstraction has 562 states and 814 transitions. [2018-12-02 02:10:15,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 02:10:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 814 transitions. [2018-12-02 02:10:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-02 02:10:15,004 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:10:15,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:10:15,005 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:10:15,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:15,005 INFO L82 PathProgramCache]: Analyzing trace with hash -2114473467, now seen corresponding path program 1 times [2018-12-02 02:10:15,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:10:15,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:15,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:10:15,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:15,006 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:10:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:10:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:10:15,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:10:15,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 02:10:15,064 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:10:15,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 02:10:15,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 02:10:15,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 02:10:15,065 INFO L87 Difference]: Start difference. First operand 562 states and 814 transitions. Second operand 4 states. [2018-12-02 02:10:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:10:15,780 INFO L93 Difference]: Finished difference Result 2216 states and 3272 transitions. [2018-12-02 02:10:15,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 02:10:15,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2018-12-02 02:10:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:10:15,786 INFO L225 Difference]: With dead ends: 2216 [2018-12-02 02:10:15,786 INFO L226 Difference]: Without dead ends: 1660 [2018-12-02 02:10:15,788 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 [2018-12-02 02:10:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2018-12-02 02:10:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1476. [2018-12-02 02:10:15,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2018-12-02 02:10:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2051 transitions. [2018-12-02 02:10:15,822 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2051 transitions. Word has length 130 [2018-12-02 02:10:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:10:15,822 INFO L480 AbstractCegarLoop]: Abstraction has 1476 states and 2051 transitions. [2018-12-02 02:10:15,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 02:10:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2051 transitions. [2018-12-02 02:10:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-12-02 02:10:15,827 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:10:15,827 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:10:15,828 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:10:15,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:15,828 INFO L82 PathProgramCache]: Analyzing trace with hash 511372486, now seen corresponding path program 1 times [2018-12-02 02:10:15,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:10:15,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:15,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:10:15,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:15,829 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:10:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:10:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 80 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 02:10:16,070 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:10:16,070 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:10:16,071 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-12-02 02:10:16,072 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [655], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:10:16,098 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:10:16,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:10:17,959 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 02:10:17,960 INFO L272 AbstractInterpreter]: Visited 117 different actions 117 times. Never merged. Never widened. Performed 1048 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1048 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-12-02 02:10:17,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:17,966 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 02:10:19,572 INFO L227 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 77.87% of their original sizes. [2018-12-02 02:10:19,572 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 02:10:19,606 INFO L418 sIntCurrentIteration]: We unified 232 AI predicates to 232 [2018-12-02 02:10:19,606 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 02:10:19,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:10:19,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-12-02 02:10:19,607 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:10:19,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 02:10:19,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 02:10:19,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 02:10:19,608 INFO L87 Difference]: Start difference. First operand 1476 states and 2051 transitions. Second operand 6 states. [2018-12-02 02:10:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:10:30,735 INFO L93 Difference]: Finished difference Result 3129 states and 4351 transitions. [2018-12-02 02:10:30,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 02:10:30,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 233 [2018-12-02 02:10:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:10:30,739 INFO L225 Difference]: With dead ends: 3129 [2018-12-02 02:10:30,739 INFO L226 Difference]: Without dead ends: 1659 [2018-12-02 02:10:30,740 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:10:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2018-12-02 02:10:30,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1658. [2018-12-02 02:10:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1658 states. [2018-12-02 02:10:30,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2241 transitions. [2018-12-02 02:10:30,761 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2241 transitions. Word has length 233 [2018-12-02 02:10:30,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:10:30,762 INFO L480 AbstractCegarLoop]: Abstraction has 1658 states and 2241 transitions. [2018-12-02 02:10:30,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 02:10:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2241 transitions. [2018-12-02 02:10:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-12-02 02:10:30,765 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:10:30,765 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:10:30,765 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:10:30,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash -266552290, now seen corresponding path program 1 times [2018-12-02 02:10:30,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:10:30,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:30,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:10:30,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:10:30,766 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:10:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:10:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 206 proven. 142 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 02:10:31,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:10:31,161 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:10:31,161 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-12-02 02:10:31,161 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [655], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:10:31,163 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:10:31,163 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:10:34,116 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 02:10:34,116 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 3 different actions 3 times. Never widened. Performed 2161 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2161 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-02 02:10:34,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:10:34,120 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 02:10:35,604 INFO L227 lantSequenceWeakener]: Weakened 314 states. On average, predicates are now at 77.76% of their original sizes. [2018-12-02 02:10:35,604 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 02:10:35,650 INFO L418 sIntCurrentIteration]: We unified 316 AI predicates to 316 [2018-12-02 02:10:35,650 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 02:10:35,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:10:35,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-12-02 02:10:35,650 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:10:35,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 02:10:35,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 02:10:35,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:10:35,651 INFO L87 Difference]: Start difference. First operand 1658 states and 2241 transitions. Second operand 10 states. [2018-12-02 02:11:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:11:11,931 INFO L93 Difference]: Finished difference Result 3526 states and 4799 transitions. [2018-12-02 02:11:11,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 02:11:11,931 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 317 [2018-12-02 02:11:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:11:11,936 INFO L225 Difference]: With dead ends: 3526 [2018-12-02 02:11:11,937 INFO L226 Difference]: Without dead ends: 2056 [2018-12-02 02:11:11,939 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 325 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-12-02 02:11:11,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2018-12-02 02:11:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 1842. [2018-12-02 02:11:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1842 states. [2018-12-02 02:11:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2439 transitions. [2018-12-02 02:11:11,983 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2439 transitions. Word has length 317 [2018-12-02 02:11:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:11:11,984 INFO L480 AbstractCegarLoop]: Abstraction has 1842 states and 2439 transitions. [2018-12-02 02:11:11,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 02:11:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2439 transitions. [2018-12-02 02:11:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-12-02 02:11:11,989 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:11:11,990 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 02:11:11,990 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:11:11,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:11,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1532597849, now seen corresponding path program 1 times [2018-12-02 02:11:11,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:11:11,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:11,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:11:11,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:11,991 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:11:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:11:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 353 proven. 212 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-12-02 02:11:12,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:11:12,400 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:11:12,401 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 417 with the following transitions: [2018-12-02 02:11:12,401 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [514], [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], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:11:12,403 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:11:12,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:11:15,126 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 02:11:15,126 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 4 different actions 4 times. Never widened. Performed 2172 root evaluator evaluations with a maximum evaluation depth of 22. Performed 2172 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-02 02:11:15,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:15,128 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 02:11:16,617 INFO L227 lantSequenceWeakener]: Weakened 413 states. On average, predicates are now at 77.67% of their original sizes. [2018-12-02 02:11:16,617 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 02:11:16,655 INFO L418 sIntCurrentIteration]: We unified 415 AI predicates to 415 [2018-12-02 02:11:16,655 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 02:11:16,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:11:16,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-12-02 02:11:16,655 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:11:16,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 02:11:16,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 02:11:16,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:11:16,656 INFO L87 Difference]: Start difference. First operand 1842 states and 2439 transitions. Second operand 10 states. [2018-12-02 02:11:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:11:26,814 INFO L93 Difference]: Finished difference Result 3680 states and 4875 transitions. [2018-12-02 02:11:26,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 02:11:26,814 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 416 [2018-12-02 02:11:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:11:26,818 INFO L225 Difference]: With dead ends: 3680 [2018-12-02 02:11:26,818 INFO L226 Difference]: Without dead ends: 2210 [2018-12-02 02:11:26,819 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 423 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-02 02:11:26,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2018-12-02 02:11:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2208. [2018-12-02 02:11:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2208 states. [2018-12-02 02:11:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 2820 transitions. [2018-12-02 02:11:26,856 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 2820 transitions. Word has length 416 [2018-12-02 02:11:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:11:26,856 INFO L480 AbstractCegarLoop]: Abstraction has 2208 states and 2820 transitions. [2018-12-02 02:11:26,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 02:11:26,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 2820 transitions. [2018-12-02 02:11:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-12-02 02:11:26,861 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:11:26,862 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:11:26,862 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:11:26,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:26,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1203933665, now seen corresponding path program 1 times [2018-12-02 02:11:26,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:11:26,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:26,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:11:26,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:26,863 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:11:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:11:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 388 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-12-02 02:11:27,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:11:27,119 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:11:27,120 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 453 with the following transitions: [2018-12-02 02:11:27,120 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:11:27,122 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:11:27,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:11:33,428 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 02:11:33,428 INFO L272 AbstractInterpreter]: Visited 122 different actions 359 times. Merged at 6 different actions 13 times. Never widened. Performed 3467 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3467 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 02:11:33,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:33,430 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 02:11:34,267 INFO L227 lantSequenceWeakener]: Weakened 449 states. On average, predicates are now at 80.28% of their original sizes. [2018-12-02 02:11:34,267 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 02:11:34,303 INFO L418 sIntCurrentIteration]: We unified 451 AI predicates to 451 [2018-12-02 02:11:34,303 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 02:11:34,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:11:34,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-12-02 02:11:34,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:11:34,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:11:34,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:11:34,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:11:34,304 INFO L87 Difference]: Start difference. First operand 2208 states and 2820 transitions. Second operand 9 states. [2018-12-02 02:11:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:11:45,620 INFO L93 Difference]: Finished difference Result 4068 states and 5385 transitions. [2018-12-02 02:11:45,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 02:11:45,620 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 452 [2018-12-02 02:11:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:11:45,624 INFO L225 Difference]: With dead ends: 4068 [2018-12-02 02:11:45,624 INFO L226 Difference]: Without dead ends: 2598 [2018-12-02 02:11:45,625 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 458 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-12-02 02:11:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2018-12-02 02:11:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2400. [2018-12-02 02:11:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2018-12-02 02:11:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 3075 transitions. [2018-12-02 02:11:45,665 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 3075 transitions. Word has length 452 [2018-12-02 02:11:45,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:11:45,665 INFO L480 AbstractCegarLoop]: Abstraction has 2400 states and 3075 transitions. [2018-12-02 02:11:45,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:11:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 3075 transitions. [2018-12-02 02:11:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-12-02 02:11:45,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:11:45,670 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:11:45,671 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:11:45,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:45,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1808065537, now seen corresponding path program 1 times [2018-12-02 02:11:45,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:11:45,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:45,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:11:45,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:45,672 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:11:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:11:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 294 proven. 253 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2018-12-02 02:11:45,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:11:45,839 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:11:45,839 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 501 with the following transitions: [2018-12-02 02:11:45,839 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [514], [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], [655], [658], [659], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:11:45,841 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:11:45,841 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:11:50,202 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:11:50,202 INFO L272 AbstractInterpreter]: Visited 124 different actions 498 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Performed 4757 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4757 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 02:11:50,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:50,205 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:11:50,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:11:50,205 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 02:11:50,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:11:50,211 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:11:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:11:50,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:11:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 647 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-12-02 02:11:50,423 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:11:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 294 proven. 253 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2018-12-02 02:11:50,574 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:11:50,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-12-02 02:11:50,574 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:11:50,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:11:50,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:11:50,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:11:50,575 INFO L87 Difference]: Start difference. First operand 2400 states and 3075 transitions. Second operand 9 states. [2018-12-02 02:11:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:11:52,681 INFO L93 Difference]: Finished difference Result 4836 states and 6367 transitions. [2018-12-02 02:11:52,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-02 02:11:52,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 500 [2018-12-02 02:11:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:11:52,687 INFO L225 Difference]: With dead ends: 4836 [2018-12-02 02:11:52,687 INFO L226 Difference]: Without dead ends: 2624 [2018-12-02 02:11:52,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1016 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2018-12-02 02:11:52,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2018-12-02 02:11:52,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2244. [2018-12-02 02:11:52,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2018-12-02 02:11:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 2583 transitions. [2018-12-02 02:11:52,720 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 2583 transitions. Word has length 500 [2018-12-02 02:11:52,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:11:52,720 INFO L480 AbstractCegarLoop]: Abstraction has 2244 states and 2583 transitions. [2018-12-02 02:11:52,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:11:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 2583 transitions. [2018-12-02 02:11:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2018-12-02 02:11:52,723 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:11:52,723 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:11:52,723 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:11:52,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:52,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1064577518, now seen corresponding path program 1 times [2018-12-02 02:11:52,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:11:52,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:52,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:11:52,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:11:52,724 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:11:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:11:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 389 proven. 249 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-12-02 02:11:53,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:11:53,321 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:11:53,321 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 520 with the following transitions: [2018-12-02 02:11:53,321 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [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], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:11:53,324 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:11:53,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:11:57,228 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:11:57,228 INFO L272 AbstractInterpreter]: Visited 190 different actions 758 times. Merged at 8 different actions 31 times. Widened at 1 different actions 1 times. Performed 8397 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8397 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-02 02:11:57,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:11:57,230 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:11:57,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:11:57,230 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 02:11:57,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:11:57,236 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:11:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:11:57,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:11:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-12-02 02:11:57,487 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:11:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 388 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-12-02 02:11:57,830 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:11:57,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-12-02 02:11:57,830 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:11:57,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-02 02:11:57,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-02 02:11:57,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2018-12-02 02:11:57,831 INFO L87 Difference]: Start difference. First operand 2244 states and 2583 transitions. Second operand 17 states. [2018-12-02 02:12:01,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:01,013 INFO L93 Difference]: Finished difference Result 4760 states and 5807 transitions. [2018-12-02 02:12:01,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-12-02 02:12:01,014 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 519 [2018-12-02 02:12:01,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:01,019 INFO L225 Difference]: With dead ends: 4760 [2018-12-02 02:12:01,020 INFO L226 Difference]: Without dead ends: 2702 [2018-12-02 02:12:01,022 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1112 GetRequests, 1059 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=615, Invalid=2355, Unknown=0, NotChecked=0, Total=2970 [2018-12-02 02:12:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2018-12-02 02:12:01,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2634. [2018-12-02 02:12:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2634 states. [2018-12-02 02:12:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 3040 transitions. [2018-12-02 02:12:01,053 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 3040 transitions. Word has length 519 [2018-12-02 02:12:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:01,053 INFO L480 AbstractCegarLoop]: Abstraction has 2634 states and 3040 transitions. [2018-12-02 02:12:01,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-02 02:12:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 3040 transitions. [2018-12-02 02:12:01,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2018-12-02 02:12:01,057 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:01,057 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, 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, 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, 1, 1, 1] [2018-12-02 02:12:01,057 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:01,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:01,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1455433953, now seen corresponding path program 1 times [2018-12-02 02:12:01,057 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:01,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:01,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:01,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:01,058 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 511 proven. 385 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-12-02 02:12:01,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:01,584 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:01,584 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 525 with the following transitions: [2018-12-02 02:12:01,584 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [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], [663], [666], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:12:01,585 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:01,585 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:08,493 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:08,493 INFO L272 AbstractInterpreter]: Visited 124 different actions 489 times. Merged at 9 different actions 26 times. Never widened. Performed 4836 root evaluator evaluations with a maximum evaluation depth of 22. Performed 4836 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 02:12:08,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:08,495 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:08,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:08,495 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 02:12:08,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:08,501 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:08,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:12:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 748 proven. 2 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-12-02 02:12:08,760 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:12:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 507 proven. 74 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2018-12-02 02:12:09,075 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:12:09,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-12-02 02:12:09,076 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:12:09,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-02 02:12:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-02 02:12:09,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-12-02 02:12:09,076 INFO L87 Difference]: Start difference. First operand 2634 states and 3040 transitions. Second operand 17 states. [2018-12-02 02:12:10,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:10,749 INFO L93 Difference]: Finished difference Result 5334 states and 6386 transitions. [2018-12-02 02:12:10,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-02 02:12:10,749 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 524 [2018-12-02 02:12:10,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:10,754 INFO L225 Difference]: With dead ends: 5334 [2018-12-02 02:12:10,754 INFO L226 Difference]: Without dead ends: 2921 [2018-12-02 02:12:10,757 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1096 GetRequests, 1054 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=430, Invalid=1376, Unknown=0, NotChecked=0, Total=1806 [2018-12-02 02:12:10,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2018-12-02 02:12:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2814. [2018-12-02 02:12:10,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2814 states. [2018-12-02 02:12:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3027 transitions. [2018-12-02 02:12:10,785 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3027 transitions. Word has length 524 [2018-12-02 02:12:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:10,786 INFO L480 AbstractCegarLoop]: Abstraction has 2814 states and 3027 transitions. [2018-12-02 02:12:10,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-02 02:12:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3027 transitions. [2018-12-02 02:12:10,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2018-12-02 02:12:10,789 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:10,789 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:12:10,789 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:10,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:10,789 INFO L82 PathProgramCache]: Analyzing trace with hash 629641869, now seen corresponding path program 1 times [2018-12-02 02:12:10,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:10,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:10,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:10,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:10,790 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 552 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-02 02:12:11,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:11,028 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:11,028 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 637 with the following transitions: [2018-12-02 02:12:11,028 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [663], [667], [671], [675], [679], [683], [686], [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], [911], [915], [919], [923], [927], [931], [934], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:12:11,030 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:11,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:14,941 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:14,941 INFO L272 AbstractInterpreter]: Visited 191 different actions 767 times. Merged at 9 different actions 36 times. Widened at 1 different actions 2 times. Performed 8558 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8558 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 4 different actions. Largest state had 24 variables. [2018-12-02 02:12:14,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:14,943 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:14,943 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:14,943 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 02:12:14,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:14,949 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:15,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:12:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2018-12-02 02:12:15,145 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:12:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 552 proven. 74 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-12-02 02:12:15,376 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:12:15,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-12-02 02:12:15,376 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:12:15,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:12:15,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:12:15,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:12:15,377 INFO L87 Difference]: Start difference. First operand 2814 states and 3027 transitions. Second operand 7 states. [2018-12-02 02:12:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:16,471 INFO L93 Difference]: Finished difference Result 7246 states and 8335 transitions. [2018-12-02 02:12:16,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 02:12:16,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 636 [2018-12-02 02:12:16,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:16,481 INFO L225 Difference]: With dead ends: 7246 [2018-12-02 02:12:16,481 INFO L226 Difference]: Without dead ends: 4804 [2018-12-02 02:12:16,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1289 GetRequests, 1275 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-12-02 02:12:16,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2018-12-02 02:12:16,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4306. [2018-12-02 02:12:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4306 states. [2018-12-02 02:12:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 4694 transitions. [2018-12-02 02:12:16,533 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 4694 transitions. Word has length 636 [2018-12-02 02:12:16,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:16,533 INFO L480 AbstractCegarLoop]: Abstraction has 4306 states and 4694 transitions. [2018-12-02 02:12:16,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:12:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 4694 transitions. [2018-12-02 02:12:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2018-12-02 02:12:16,537 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:16,538 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:12:16,538 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:16,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:16,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1074697562, now seen corresponding path program 1 times [2018-12-02 02:12:16,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:16,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:16,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:16,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:16,539 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 765 proven. 673 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2018-12-02 02:12:17,805 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:17,805 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:17,805 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 796 with the following transitions: [2018-12-02 02:12:17,805 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [663], [667], [671], [675], [679], [683], [686], [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], [854], [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] [2018-12-02 02:12:17,807 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:17,807 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:21,692 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:21,692 INFO L272 AbstractInterpreter]: Visited 192 different actions 770 times. Merged at 9 different actions 35 times. Widened at 1 different actions 2 times. Performed 8612 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8612 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 5 different actions. Largest state had 24 variables. [2018-12-02 02:12:21,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:21,693 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:21,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:21,694 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 [2018-12-02 02:12:21,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:21,699 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:21,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:12:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1071 proven. 2 refuted. 0 times theorem prover too weak. 696 trivial. 0 not checked. [2018-12-02 02:12:21,971 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:12:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 758 proven. 74 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2018-12-02 02:12:22,308 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:12:22,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-12-02 02:12:22,309 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:12:22,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-02 02:12:22,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-02 02:12:22,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-12-02 02:12:22,310 INFO L87 Difference]: Start difference. First operand 4306 states and 4694 transitions. Second operand 20 states. [2018-12-02 02:12:27,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:27,743 INFO L93 Difference]: Finished difference Result 9196 states and 10192 transitions. [2018-12-02 02:12:27,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-12-02 02:12:27,744 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 795 [2018-12-02 02:12:27,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:27,755 INFO L225 Difference]: With dead ends: 9196 [2018-12-02 02:12:27,755 INFO L226 Difference]: Without dead ends: 4890 [2018-12-02 02:12:27,762 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1720 GetRequests, 1635 SyntacticMatches, 5 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2015 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1006, Invalid=5636, Unknown=0, NotChecked=0, Total=6642 [2018-12-02 02:12:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2018-12-02 02:12:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4664. [2018-12-02 02:12:27,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4664 states. [2018-12-02 02:12:27,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4664 states to 4664 states and 4986 transitions. [2018-12-02 02:12:27,811 INFO L78 Accepts]: Start accepts. Automaton has 4664 states and 4986 transitions. Word has length 795 [2018-12-02 02:12:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:27,812 INFO L480 AbstractCegarLoop]: Abstraction has 4664 states and 4986 transitions. [2018-12-02 02:12:27,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-02 02:12:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4664 states and 4986 transitions. [2018-12-02 02:12:27,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2018-12-02 02:12:27,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:27,817 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 02:12:27,817 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:27,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:27,817 INFO L82 PathProgramCache]: Analyzing trace with hash 317370558, now seen corresponding path program 1 times [2018-12-02 02:12:27,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:27,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:27,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:27,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:27,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 705 proven. 1256 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2018-12-02 02:12:29,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:29,353 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:29,353 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 962 with the following transitions: [2018-12-02 02:12:29,353 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [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] [2018-12-02 02:12:29,355 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:29,355 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:33,254 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:33,254 INFO L272 AbstractInterpreter]: Visited 193 different actions 772 times. Merged at 10 different actions 33 times. Widened at 1 different actions 1 times. Performed 8575 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8575 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-02 02:12:33,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:33,256 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:33,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:33,256 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 [2018-12-02 02:12:33,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:33,262 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:33,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:12:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1911 proven. 2 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2018-12-02 02:12:33,968 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:12:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 701 proven. 400 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2018-12-02 02:12:34,891 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:12:34,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 20 [2018-12-02 02:12:34,892 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:12:34,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 02:12:34,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 02:12:34,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2018-12-02 02:12:34,893 INFO L87 Difference]: Start difference. First operand 4664 states and 4986 transitions. Second operand 18 states. [2018-12-02 02:12:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:37,040 INFO L93 Difference]: Finished difference Result 9362 states and 10077 transitions. [2018-12-02 02:12:37,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-02 02:12:37,040 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 961 [2018-12-02 02:12:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:37,047 INFO L225 Difference]: With dead ends: 9362 [2018-12-02 02:12:37,047 INFO L226 Difference]: Without dead ends: 5070 [2018-12-02 02:12:37,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1972 GetRequests, 1932 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=351, Invalid=1289, Unknown=0, NotChecked=0, Total=1640 [2018-12-02 02:12:37,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2018-12-02 02:12:37,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 4846. [2018-12-02 02:12:37,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4846 states. [2018-12-02 02:12:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 5170 transitions. [2018-12-02 02:12:37,097 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 5170 transitions. Word has length 961 [2018-12-02 02:12:37,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:37,098 INFO L480 AbstractCegarLoop]: Abstraction has 4846 states and 5170 transitions. [2018-12-02 02:12:37,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 02:12:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 5170 transitions. [2018-12-02 02:12:37,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 969 [2018-12-02 02:12:37,103 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:37,103 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 02:12:37,103 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:37,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:37,104 INFO L82 PathProgramCache]: Analyzing trace with hash -264884215, now seen corresponding path program 1 times [2018-12-02 02:12:37,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:37,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:37,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:37,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:37,105 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 705 proven. 1270 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2018-12-02 02:12:38,513 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:38,514 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:38,514 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 969 with the following transitions: [2018-12-02 02:12:38,514 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [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] [2018-12-02 02:12:38,515 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:38,515 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:42,416 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:42,416 INFO L272 AbstractInterpreter]: Visited 194 different actions 775 times. Merged at 10 different actions 32 times. Widened at 1 different actions 1 times. Performed 8681 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8681 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-12-02 02:12:42,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:42,418 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:42,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:42,418 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 [2018-12-02 02:12:42,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:42,424 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:42,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:12:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 854 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-12-02 02:12:42,818 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:12:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2866 backedges. 854 proven. 2 refuted. 0 times theorem prover too weak. 2010 trivial. 0 not checked. [2018-12-02 02:12:43,411 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:12:43,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-12-02 02:12:43,412 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:12:43,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 02:12:43,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 02:12:43,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2018-12-02 02:12:43,413 INFO L87 Difference]: Start difference. First operand 4846 states and 5170 transitions. Second operand 18 states. [2018-12-02 02:12:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:46,717 INFO L93 Difference]: Finished difference Result 9704 states and 10369 transitions. [2018-12-02 02:12:46,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-12-02 02:12:46,717 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 968 [2018-12-02 02:12:46,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:46,724 INFO L225 Difference]: With dead ends: 9704 [2018-12-02 02:12:46,724 INFO L226 Difference]: Without dead ends: 4850 [2018-12-02 02:12:46,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2017 GetRequests, 1957 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 981 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=682, Invalid=2978, Unknown=0, NotChecked=0, Total=3660 [2018-12-02 02:12:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4850 states. [2018-12-02 02:12:46,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4850 to 4662. [2018-12-02 02:12:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4662 states. [2018-12-02 02:12:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4662 states to 4662 states and 4893 transitions. [2018-12-02 02:12:46,776 INFO L78 Accepts]: Start accepts. Automaton has 4662 states and 4893 transitions. Word has length 968 [2018-12-02 02:12:46,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:46,776 INFO L480 AbstractCegarLoop]: Abstraction has 4662 states and 4893 transitions. [2018-12-02 02:12:46,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 02:12:46,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4662 states and 4893 transitions. [2018-12-02 02:12:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2018-12-02 02:12:46,783 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:46,784 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, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 02:12:46,784 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:46,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:46,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1467967182, now seen corresponding path program 1 times [2018-12-02 02:12:46,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:46,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:46,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:46,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:46,785 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3737 backedges. 1693 proven. 265 refuted. 0 times theorem prover too weak. 1779 trivial. 0 not checked. [2018-12-02 02:12:47,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:47,334 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:47,334 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1098 with the following transitions: [2018-12-02 02:12:47,334 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [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] [2018-12-02 02:12:47,336 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:47,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:51,224 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:51,225 INFO L272 AbstractInterpreter]: Visited 195 different actions 786 times. Merged at 12 different actions 39 times. Widened at 1 different actions 1 times. Performed 8756 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8756 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 6 different actions. Largest state had 24 variables. [2018-12-02 02:12:51,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:51,227 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:51,227 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:51,227 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 [2018-12-02 02:12:51,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:51,233 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:51,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:12:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3737 backedges. 2216 proven. 6 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2018-12-02 02:12:51,713 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:12:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3737 backedges. 1693 proven. 269 refuted. 0 times theorem prover too weak. 1775 trivial. 0 not checked. [2018-12-02 02:12:52,323 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:12:52,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-12-02 02:12:52,323 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:12:52,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:12:52,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:12:52,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-12-02 02:12:52,324 INFO L87 Difference]: Start difference. First operand 4662 states and 4893 transitions. Second operand 9 states. [2018-12-02 02:12:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:53,222 INFO L93 Difference]: Finished difference Result 8438 states and 8958 transitions. [2018-12-02 02:12:53,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 02:12:53,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1097 [2018-12-02 02:12:53,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:53,229 INFO L225 Difference]: With dead ends: 8438 [2018-12-02 02:12:53,229 INFO L226 Difference]: Without dead ends: 5440 [2018-12-02 02:12:53,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2222 GetRequests, 2198 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2018-12-02 02:12:53,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2018-12-02 02:12:53,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 4846. [2018-12-02 02:12:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4846 states. [2018-12-02 02:12:53,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 5080 transitions. [2018-12-02 02:12:53,283 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 5080 transitions. Word has length 1097 [2018-12-02 02:12:53,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:53,284 INFO L480 AbstractCegarLoop]: Abstraction has 4846 states and 5080 transitions. [2018-12-02 02:12:53,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:12:53,284 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 5080 transitions. [2018-12-02 02:12:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2018-12-02 02:12:53,293 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:53,293 INFO L402 BasicCegarLoop]: trace histogram [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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 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, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:12:53,293 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:53,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:53,293 INFO L82 PathProgramCache]: Analyzing trace with hash 2008033529, now seen corresponding path program 1 times [2018-12-02 02:12:53,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:12:53,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:53,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:53,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:53,294 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:12:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 1047 proven. 2535 refuted. 0 times theorem prover too weak. 1784 trivial. 0 not checked. [2018-12-02 02:12:55,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:55,281 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 02:12:55,281 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 1397 with the following transitions: [2018-12-02 02:12:55,281 INFO L205 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], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [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], [695], [699], [703], [707], [711], [715], [719], [723], [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], [930], [931], [934], [935], [939], [943], [946], [948], [952], [961], [965], [967], [972], [973], [974], [976], [977] [2018-12-02 02:12:55,282 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 02:12:55,282 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 02:12:59,333 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 02:12:59,333 INFO L272 AbstractInterpreter]: Visited 199 different actions 797 times. Merged at 12 different actions 34 times. Never widened. Performed 8815 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8815 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 17 fixpoints after 8 different actions. Largest state had 24 variables. [2018-12-02 02:12:59,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:59,335 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 02:12:59,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:12:59,335 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/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 [2018-12-02 02:12:59,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:59,341 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 02:12:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:59,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:13:00,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 3084 proven. 2 refuted. 0 times theorem prover too weak. 2280 trivial. 0 not checked. [2018-12-02 02:13:00,018 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 02:13:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 1245 proven. 278 refuted. 0 times theorem prover too weak. 3843 trivial. 0 not checked. [2018-12-02 02:13:00,963 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 02:13:00,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 21 [2018-12-02 02:13:00,963 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 02:13:00,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-02 02:13:00,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-02 02:13:00,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-12-02 02:13:00,964 INFO L87 Difference]: Start difference. First operand 4846 states and 5080 transitions. Second operand 19 states. [2018-12-02 02:13:04,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:13:04,167 INFO L93 Difference]: Finished difference Result 8006 states and 8726 transitions. [2018-12-02 02:13:04,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-12-02 02:13:04,167 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1396 [2018-12-02 02:13:04,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:13:04,176 INFO L225 Difference]: With dead ends: 8006 [2018-12-02 02:13:04,176 INFO L226 Difference]: Without dead ends: 5008 [2018-12-02 02:13:04,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2878 GetRequests, 2821 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=759, Invalid=2433, Unknown=0, NotChecked=0, Total=3192 [2018-12-02 02:13:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2018-12-02 02:13:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 4846. [2018-12-02 02:13:04,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4846 states. [2018-12-02 02:13:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4846 states to 4846 states and 5072 transitions. [2018-12-02 02:13:04,240 INFO L78 Accepts]: Start accepts. Automaton has 4846 states and 5072 transitions. Word has length 1396 [2018-12-02 02:13:04,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:13:04,240 INFO L480 AbstractCegarLoop]: Abstraction has 4846 states and 5072 transitions. [2018-12-02 02:13:04,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-02 02:13:04,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4846 states and 5072 transitions. [2018-12-02 02:13:04,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1515 [2018-12-02 02:13:04,250 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:13:04,251 INFO L402 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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, 11, 11, 11, 11, 11, 11, 11, 11, 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, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:13:04,251 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:13:04,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:13:04,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1398103861, now seen corresponding path program 1 times [2018-12-02 02:13:04,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 02:13:04,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:13:04,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:13:04,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:13:04,252 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 02:13:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:13:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6489 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2018-12-02 02:13:04,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:13:04,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 02:13:04,980 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 02:13:04,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 02:13:04,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 02:13:04,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 02:13:04,981 INFO L87 Difference]: Start difference. First operand 4846 states and 5072 transitions. Second operand 4 states. [2018-12-02 02:13:05,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:13:05,460 INFO L93 Difference]: Finished difference Result 10784 states and 11341 transitions. [2018-12-02 02:13:05,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 02:13:05,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1514 [2018-12-02 02:13:05,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:13:05,461 INFO L225 Difference]: With dead ends: 10784 [2018-12-02 02:13:05,461 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 02:13:05,469 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 [2018-12-02 02:13:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 02:13:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 02:13:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 02:13:05,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 02:13:05,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1514 [2018-12-02 02:13:05,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:13:05,469 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:13:05,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 02:13:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:13:05,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 02:13:05,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 02:13:05,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:05,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,217 WARN L180 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 441 [2018-12-02 02:13:06,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:13:06,717 WARN L180 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 507 DAG size of output: 427 [2018-12-02 02:13:07,866 WARN L180 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 292 DAG size of output: 94 [2018-12-02 02:13:11,449 WARN L180 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 408 DAG size of output: 91 [2018-12-02 02:13:15,423 WARN L180 SmtUtils]: Spent 3.97 s on a formula simplification. DAG size of input: 399 DAG size of output: 98 [2018-12-02 02:13:15,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 02:13:15,425 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-12-02 02:13:15,425 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 02:13:15,425 INFO L448 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-12-02 02:13:15,425 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-12-02 02:13:15,425 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,425 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,426 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,427 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,428 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-02 02:13:15,429 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse18 (= 6 |old(~a15~0)|)) (.cse23 (= 9 |old(~a15~0)|))) (let ((.cse2 (= ~a12~0 |old(~a12~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse25 (= |old(~a15~0)| ~a15~0)) (.cse24 (= 1 ~a24~0)) (.cse8 (= 8 |old(~a15~0)|)) (.cse26 (or .cse18 .cse23))) (let ((.cse7 (<= |old(~a12~0)| 80)) (.cse5 (= ~a15~0 |old(~a15~0)|)) (.cse0 (and (or (= 6 |old(~a21~0)|) .cse8 .cse23) (or .cse8 .cse26))) (.cse11 (= 0 |old(~a21~0)|)) (.cse12 (< |old(~a12~0)| 12849)) (.cse19 (< 73282 |old(~a12~0)|)) (.cse21 (< 76 |old(~a12~0)|)) (.cse9 (not (= 10 |old(~a21~0)|))) (.cse22 (<= |old(~a12~0)| 11)) (.cse6 (and .cse2 .cse4 .cse25 .cse24)) (.cse16 (and .cse2 .cse4 (= 8 ~a15~0) (= ~a24~0 1))) (.cse13 (not .cse8)) (.cse14 (= |calculate_output_#in~input| 0)) (.cse17 (not (= 7 |old(~a21~0)|))) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse20 (not (= 8 |old(~a21~0)|))) (.cse10 (< 11 |old(~a12~0)|)) (.cse3 (= ~a24~0 |old(~a24~0)|)) (.cse15 (< 6 |old(~a21~0)|))) (and (or (or .cse0 .cse1) (and (and .cse2 .cse3) .cse4 .cse5)) (or (< |old(~a21~0)| 9) .cse1 .cse6 .cse7 .cse8) (or .cse9 .cse6 .cse1 .cse10 .cse8) (or .cse11 .cse12 .cse1 .cse13 .cse14 .cse15 .cse16) (or .cse16 .cse9 .cse1 .cse13 .cse14 .cse7) (or .cse17 (and .cse3 .cse4 .cse5) .cse0) (or .cse6 .cse12 .cse1 .cse18 .cse8) (or (not (= 9 |old(~a21~0)|)) .cse16 .cse1 .cse10 .cse13 .cse14) (or .cse12 .cse1 .cse13 .cse19 .cse14 .cse20 .cse16) (or .cse11 .cse21 .cse1 .cse13 .cse16 .cse14 .cse22) (or .cse6 .cse12 .cse1 .cse19 .cse8) (or .cse21 .cse6 .cse1 .cse22 .cse8 .cse23) (or .cse16 .cse9 .cse1 .cse10 .cse13 .cse14) (or .cse17 .cse1 .cse22 .cse8 .cse6) (or .cse16 .cse13 .cse14 .cse17 .cse1 .cse10) (or (not .cse23) (and .cse2 .cse4 .cse24 (= 9 ~a15~0)) .cse1 .cse20) (or .cse10 (and .cse2 .cse3 .cse4 .cse25) .cse8 .cse15 .cse26))))) [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-12-02 02:13:15,430 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-02 02:13:15,431 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-12-02 02:13:15,432 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-02 02:13:15,433 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-12-02 02:13:15,434 INFO L448 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,435 INFO L448 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 02:13:15,436 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)) [2018-12-02 02:13:15,436 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 02:13:15,436 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 02:13:15,436 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-12-02 02:13:15,437 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-12-02 02:13:15,437 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse24 (not (= 6 ~a21~0))) (.cse19 (not (= ~a15~0 6))) (.cse1 (not (= ~a21~0 0))) (.cse2 (not (= main_~input~0 0))) (.cse3 (= ~a24~0 1)) (.cse23 (<= 7 |old(~a21~0)|)) (.cse18 (not (= ~a15~0 9))) (.cse12 (= 1 ~a24~0)) (.cse11 (not (= ~a15~0 8))) (.cse0 (= 8 |old(~a15~0)|))) (let ((.cse7 (<= ~a12~0 73282)) (.cse14 (< 11 ~a12~0)) (.cse16 (<= ~a12~0 76)) (.cse15 (and .cse18 .cse12 .cse11 .cse0)) (.cse4 (<= ~a21~0 6)) (.cse8 (and .cse1 .cse2 .cse3 .cse23 .cse0)) (.cse6 (= ~a15~0 |old(~a15~0)|)) (.cse10 (< 80 ~a12~0)) (.cse9 (and .cse12 .cse23 .cse11 .cse0 .cse24 .cse19)) (.cse21 (= ~a24~0 |old(~a24~0)|)) (.cse5 (<= 12849 ~a12~0)) (.cse22 (= ~a21~0 10)) (.cse17 (<= ~a12~0 11)) (.cse20 (or (and .cse18 .cse23 .cse11 .cse0 .cse24) (and .cse18 .cse23 .cse11 .cse0 .cse19))) (.cse13 (= ~a21~0 7))) (or (not .cse0) (and (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (and .cse7 .cse8 (= ~a21~0 8) .cse5) (and (<= 9 ~a21~0) .cse9 .cse10) (and (and .cse11 .cse12 .cse13) .cse14) (and (and .cse7 .cse15) .cse5) (and .cse14 (and .cse16 .cse8 .cse6)) (and .cse14 (and .cse16 .cse15)) (and (and (and .cse2 (= 7 ~a21~0)) .cse17) .cse12 (= 8 ~a15~0)) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and .cse11 .cse18 .cse17 .cse4 .cse19) (and (= 9 ~a21~0) .cse8 .cse6 .cse17) (and .cse20 .cse21) (and (and .cse2 .cse21 .cse22) .cse10) (and .cse9 (= 8 ~a21~0)) (and (and .cse21 .cse22 .cse11) .cse17) (and (and .cse11 .cse12 .cse19) .cse5) (not (= 1 |old(~a24~0)|)) (and (and .cse2 .cse3 .cse22) .cse17) (and .cse20 .cse13)))) [2018-12-02 02:13:15,437 INFO L448 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-12-02 02:13:15,437 INFO L448 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-12-02 02:13:15,437 INFO L444 ceAbstractionStarter]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse23 (= ~a15~0 8)) (.cse20 (= ~a24~0 1))) (let ((.cse22 (not (= 6 ~a21~0))) (.cse16 (not (= ~a15~0 6))) (.cse21 (<= 7 |old(~a21~0)|)) (.cse17 (and (not (= ~a21~0 0)) .cse23 .cse20)) (.cse13 (not (= ~a15~0 9))) (.cse7 (= 1 ~a24~0)) (.cse6 (not .cse23)) (.cse3 (= 8 |old(~a15~0)|))) (let ((.cse0 (<= ~a12~0 73282)) (.cse10 (and .cse13 .cse7 .cse6 .cse3)) (.cse11 (<= ~a12~0 76)) (.cse9 (< 11 ~a12~0)) (.cse15 (<= ~a21~0 6)) (.cse12 (and .cse21 .cse3 .cse17)) (.cse4 (and .cse7 .cse21 .cse6 .cse3 .cse22 .cse16)) (.cse1 (= ~a24~0 |old(~a24~0)|)) (.cse14 (<= ~a12~0 11)) (.cse2 (<= 12849 ~a12~0)) (.cse5 (< 80 ~a12~0)) (.cse19 (= ~a21~0 10)) (.cse18 (or (and .cse13 .cse21 .cse6 .cse3 .cse22) (and .cse13 .cse21 .cse6 .cse3 .cse16))) (.cse8 (= ~a21~0 7))) (or (and .cse0 .cse1 (= ~a21~0 8) .cse2) (not .cse3) (and (<= 9 ~a21~0) .cse4 .cse5) (and (and .cse6 .cse7 .cse8) .cse9) (and (and .cse0 .cse10) .cse2) (and .cse9 (and .cse11 .cse10)) (not (= 7 |old(~a21~0)|)) (not (= 0 (+ |old(~a12~0)| 49))) (and (and .cse11 .cse12) .cse9) (and .cse6 .cse13 .cse14 .cse15 .cse16) (and (and (= 7 ~a21~0) .cse17) .cse14) (and .cse18 .cse1) (and (and .cse17 .cse15) .cse2) (and (= 9 ~a21~0) .cse12 .cse14) (and .cse4 (= 8 ~a21~0)) (and (and .cse1 .cse19) .cse14) (and (and .cse6 .cse7 .cse16) .cse2) (and .cse5 (and .cse20 .cse19)) (not (= 1 |old(~a24~0)|)) (and .cse18 .cse8))))) [2018-12-02 02:13:15,437 INFO L448 ceAbstractionStarter]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2018-12-02 02:13:15,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:13:15 BoogieIcfgContainer [2018-12-02 02:13:15,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 02:13:15,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:13:15,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:13:15,448 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:13:15,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:10:13" (3/4) ... [2018-12-02 02:13:15,451 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 02:13:15,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 02:13:15,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 02:13:15,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 02:13:15,464 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 02:13:15,465 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 02:13:15,488 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((a12 <= 73282 && a24 == \old(a24)) && a21 == 8) && 12849 <= a12) || !(8 == \old(a15))) || ((9 <= a21 && ((((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) && !(a15 == 6)) && 80 < a12)) || (((!(a15 == 8) && 1 == a24) && a21 == 7) && 11 < a12)) || ((a12 <= 73282 && ((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15)) && 12849 <= a12)) || (11 < a12 && a12 <= 76 && ((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15))) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || ((a12 <= 76 && (7 <= \old(a21) && 8 == \old(a15)) && (!(a21 == 0) && a15 == 8) && a24 == 1) && 11 < a12)) || ((((!(a15 == 8) && !(a15 == 9)) && a12 <= 11) && a21 <= 6) && !(a15 == 6))) || ((7 == a21 && (!(a21 == 0) && a15 == 8) && a24 == 1) && a12 <= 11)) || ((((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) || ((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) && a24 == \old(a24))) || ((((!(a21 == 0) && a15 == 8) && a24 == 1) && a21 <= 6) && 12849 <= a12)) || ((9 == a21 && (7 <= \old(a21) && 8 == \old(a15)) && (!(a21 == 0) && a15 == 8) && a24 == 1) && a12 <= 11)) || ((((((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) && !(a15 == 6)) && 8 == a21)) || ((a24 == \old(a24) && a21 == 10) && a12 <= 11)) || (((!(a15 == 8) && 1 == a24) && !(a15 == 6)) && 12849 <= a12)) || (80 < a12 && a24 == 1 && a21 == 10)) || !(1 == \old(a24))) || ((((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) || ((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) && a21 == 7) [2018-12-02 02:13:15,548 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6f9a3d05-ab7f-4037-841d-4c0f7d620adc/bin-2019/utaipan/witness.graphml [2018-12-02 02:13:15,548 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:13:15,549 INFO L168 Benchmark]: Toolchain (without parser) took 183267.06 ms. Allocated memory was 1.0 GB in the beginning and 3.7 GB in the end (delta: 2.7 GB). Free memory was 940.6 MB in the beginning and 2.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-02 02:13:15,549 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:13:15,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2018-12-02 02:13:15,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.26 ms. Allocated memory is still 1.1 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. [2018-12-02 02:13:15,550 INFO L168 Benchmark]: Boogie Preprocessor took 41.65 ms. Allocated memory is still 1.1 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. [2018-12-02 02:13:15,550 INFO L168 Benchmark]: RCFGBuilder took 734.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 961.5 MB in the end (delta: 125.8 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:13:15,550 INFO L168 Benchmark]: TraceAbstraction took 182017.29 ms. Allocated memory was 1.1 GB in the beginning and 3.7 GB in the end (delta: 2.6 GB). Free memory was 961.5 MB in the beginning and 2.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. [2018-12-02 02:13:15,551 INFO L168 Benchmark]: Witness Printer took 100.21 ms. Allocated memory is still 3.7 GB. Free memory was 2.6 GB in the beginning and 2.5 GB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 11.5 GB. [2018-12-02 02:13:15,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.26 ms. Allocated memory is still 1.1 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. * Boogie Preprocessor took 41.65 ms. Allocated memory is still 1.1 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 734.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 961.5 MB in the end (delta: 125.8 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 182017.29 ms. Allocated memory was 1.1 GB in the beginning and 3.7 GB in the end (delta: 2.6 GB). Free memory was 961.5 MB in the beginning and 2.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.0 GB. Max. memory is 11.5 GB. * Witness Printer took 100.21 ms. Allocated memory is still 3.7 GB. Free memory was 2.6 GB in the beginning and 2.5 GB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: (((((((((((((((((((((a12 <= 73282 && a24 == \old(a24)) && a21 == 8) && 12849 <= a12) || !(8 == \old(a15))) || ((9 <= a21 && ((((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) && !(a15 == 6)) && 80 < a12)) || (((!(a15 == 8) && 1 == a24) && a21 == 7) && 11 < a12)) || ((a12 <= 73282 && ((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15)) && 12849 <= a12)) || (11 < a12 && a12 <= 76 && ((!(a15 == 9) && 1 == a24) && !(a15 == 8)) && 8 == \old(a15))) || !(7 == \old(a21))) || !(0 == \old(a12) + 49)) || ((a12 <= 76 && (7 <= \old(a21) && 8 == \old(a15)) && (!(a21 == 0) && a15 == 8) && a24 == 1) && 11 < a12)) || ((((!(a15 == 8) && !(a15 == 9)) && a12 <= 11) && a21 <= 6) && !(a15 == 6))) || ((7 == a21 && (!(a21 == 0) && a15 == 8) && a24 == 1) && a12 <= 11)) || ((((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) || ((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) && a24 == \old(a24))) || ((((!(a21 == 0) && a15 == 8) && a24 == 1) && a21 <= 6) && 12849 <= a12)) || ((9 == a21 && (7 <= \old(a21) && 8 == \old(a15)) && (!(a21 == 0) && a15 == 8) && a24 == 1) && a12 <= 11)) || ((((((1 == a24 && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) && !(a15 == 6)) && 8 == a21)) || ((a24 == \old(a24) && a21 == 10) && a12 <= 11)) || (((!(a15 == 8) && 1 == a24) && !(a15 == 6)) && 12849 <= a12)) || (80 < a12 && a24 == 1 && a21 == 10)) || !(1 == \old(a24))) || ((((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(6 == a21)) || ((((!(a15 == 9) && 7 <= \old(a21)) && !(a15 == 8)) && 8 == \old(a15)) && !(a15 == 6))) && a21 == 7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. SAFE Result, 181.9s OverallTime, 17 OverallIterations, 12 TraceHistogramMax, 94.4s AutomataDifference, 0.0s DeadEndRemovalTime, 9.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1093 SDtfs, 23641 SDslu, 1925 SDs, 0 SdLazy, 33089 SolverSat, 4861 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 16818 GetRequests, 16344 SyntacticMatches, 19 SemanticMatches, 455 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5635 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4846occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 52.6s AbstIntTime, 13 AbstIntIterations, 4 AbstIntStrong, 0.9970503006962547 AbsIntWeakeningRatio, 0.09476661951909476 AbsIntAvgWeakeningVarsNumRemoved, 16.123762376237625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 3054 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 262 PreInvPairs, 352 NumberOfFragments, 1425 HoareAnnotationTreeSize, 262 FomulaSimplifications, 433723 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 266178 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 18022 NumberOfCodeBlocks, 18022 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 25383 ConstructedInterpolants, 0 QuantifiedInterpolants, 99256702 SizeOfPredicates, 27 NumberOfNonLiveVariables, 10643 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 35 InterpolantComputations, 4 PerfectInterpolantSequences, 60914/69892 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...