./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.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_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 5f1f3e9c958502587d73771213325403adeeeeae .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:34:13,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 01:34:13,811 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 01:34:13,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 01:34:13,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 01:34:13,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 01:34:13,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 01:34:13,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 01:34:13,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 01:34:13,820 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 01:34:13,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 01:34:13,821 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 01:34:13,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 01:34:13,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 01:34:13,822 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 01:34:13,823 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 01:34:13,823 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 01:34:13,824 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 01:34:13,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 01:34:13,825 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 01:34:13,826 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 01:34:13,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 01:34:13,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 01:34:13,828 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 01:34:13,828 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 01:34:13,828 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 01:34:13,829 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 01:34:13,829 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 01:34:13,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 01:34:13,830 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 01:34:13,830 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 01:34:13,831 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 01:34:13,831 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 01:34:13,831 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 01:34:13,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 01:34:13,832 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 01:34:13,832 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 01:34:13,839 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 01:34:13,839 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 01:34:13,840 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 01:34:13,840 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 01:34:13,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 01:34:13,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 01:34:13,840 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 01:34:13,841 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 01:34:13,841 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 01:34:13,841 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 01:34:13,841 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 01:34:13,841 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 01:34:13,841 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 01:34:13,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 01:34:13,842 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 01:34:13,843 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 01:34:13,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 01:34:13,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 01:34:13,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 01:34:13,844 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 01:34:13,844 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 01:34:13,844 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 01:34:13,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 01:34:13,844 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 01:34:13,844 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_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 -> 5f1f3e9c958502587d73771213325403adeeeeae [2018-12-02 01:34:13,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 01:34:13,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 01:34:13,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 01:34:13,870 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 01:34:13,870 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 01:34:13,871 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-12-02 01:34:13,904 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/data/899c7eb98/570773b2e61c489ebb21e621b2e3c404/FLAGe88212d20 [2018-12-02 01:34:14,308 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 01:34:14,309 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/sv-benchmarks/c/eca-rers2012/Problem10_label59_true-unreach-call.c [2018-12-02 01:34:14,316 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/data/899c7eb98/570773b2e61c489ebb21e621b2e3c404/FLAGe88212d20 [2018-12-02 01:34:14,324 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/data/899c7eb98/570773b2e61c489ebb21e621b2e3c404 [2018-12-02 01:34:14,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 01:34:14,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 01:34:14,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 01:34:14,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 01:34:14,329 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 01:34:14,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14, skipping insertion in model container [2018-12-02 01:34:14,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 01:34:14,360 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 01:34:14,538 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:34:14,541 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 01:34:14,623 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:34:14,632 INFO L195 MainTranslator]: Completed translation [2018-12-02 01:34:14,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14 WrapperNode [2018-12-02 01:34:14,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 01:34:14,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 01:34:14,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 01:34:14,633 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 01:34:14,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 01:34:14,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 01:34:14,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 01:34:14,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 01:34:14,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... [2018-12-02 01:34:14,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 01:34:14,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 01:34:14,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 01:34:14,690 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 01:34:14,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:34:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 01:34:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 01:34:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-02 01:34:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-02 01:34:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 01:34:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 01:34:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 01:34:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 01:34:15,317 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 01:34:15,317 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 01:34:15,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:15 BoogieIcfgContainer [2018-12-02 01:34:15,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 01:34:15,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 01:34:15,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 01:34:15,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 01:34:15,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:34:14" (1/3) ... [2018-12-02 01:34:15,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d4ed9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:34:15, skipping insertion in model container [2018-12-02 01:34:15,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:34:14" (2/3) ... [2018-12-02 01:34:15,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d4ed9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:34:15, skipping insertion in model container [2018-12-02 01:34:15,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:15" (3/3) ... [2018-12-02 01:34:15,324 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label59_true-unreach-call.c [2018-12-02 01:34:15,332 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 01:34:15,339 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 01:34:15,351 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 01:34:15,376 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 01:34:15,376 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 01:34:15,376 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 01:34:15,376 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 01:34:15,376 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 01:34:15,377 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 01:34:15,377 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 01:34:15,377 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 01:34:15,390 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-12-02 01:34:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-12-02 01:34:15,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:15,397 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:15,398 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:15,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:15,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1400340266, now seen corresponding path program 1 times [2018-12-02 01:34:15,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:15,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:15,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:15,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:15,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:15,607 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 01:34:15,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:15,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 01:34:15,609 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:15,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 01:34:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 01:34:15,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 01:34:15,627 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2018-12-02 01:34:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:16,302 INFO L93 Difference]: Finished difference Result 733 states and 1294 transitions. [2018-12-02 01:34:16,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 01:34:16,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-12-02 01:34:16,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:16,313 INFO L225 Difference]: With dead ends: 733 [2018-12-02 01:34:16,313 INFO L226 Difference]: Without dead ends: 437 [2018-12-02 01:34:16,316 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 01:34:16,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2018-12-02 01:34:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 294. [2018-12-02 01:34:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-12-02 01:34:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2018-12-02 01:34:16,359 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 71 [2018-12-02 01:34:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:16,360 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2018-12-02 01:34:16,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 01:34:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2018-12-02 01:34:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-12-02 01:34:16,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:16,364 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 01:34:16,364 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:16,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:16,365 INFO L82 PathProgramCache]: Analyzing trace with hash 41629170, now seen corresponding path program 1 times [2018-12-02 01:34:16,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:16,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:16,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:16,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:16,366 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:16,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:16,511 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:16,511 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-12-02 01:34:16,512 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [498], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:34:16,536 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:16,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:16,841 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:16,842 INFO L272 AbstractInterpreter]: Visited 78 different actions 220 times. Merged at 4 different actions 7 times. Never widened. Performed 1961 root evaluator evaluations with a maximum evaluation depth of 7. Performed 1961 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-02 01:34:16,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:16,848 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:16,848 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:16,848 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:34:16,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:16,857 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:16,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:16,944 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:17,024 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-02 01:34:17,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-12-02 01:34:17,025 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:17,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 01:34:17,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 01:34:17,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-02 01:34:17,026 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2018-12-02 01:34:17,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:17,364 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2018-12-02 01:34:17,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 01:34:17,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-12-02 01:34:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:17,368 INFO L225 Difference]: With dead ends: 868 [2018-12-02 01:34:17,368 INFO L226 Difference]: Without dead ends: 580 [2018-12-02 01:34:17,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-02 01:34:17,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2018-12-02 01:34:17,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2018-12-02 01:34:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2018-12-02 01:34:17,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 802 transitions. [2018-12-02 01:34:17,393 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 802 transitions. Word has length 141 [2018-12-02 01:34:17,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:17,394 INFO L480 AbstractCegarLoop]: Abstraction has 580 states and 802 transitions. [2018-12-02 01:34:17,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 01:34:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 802 transitions. [2018-12-02 01:34:17,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-12-02 01:34:17,397 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:17,397 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-02 01:34:17,397 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:17,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:17,398 INFO L82 PathProgramCache]: Analyzing trace with hash -395920931, now seen corresponding path program 1 times [2018-12-02 01:34:17,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:17,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:17,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:17,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:17,399 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:17,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:17,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 01:34:17,523 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:17,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:34:17,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:34:17,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:34:17,524 INFO L87 Difference]: Start difference. First operand 580 states and 802 transitions. Second operand 6 states. [2018-12-02 01:34:17,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:17,961 INFO L93 Difference]: Finished difference Result 1480 states and 2162 transitions. [2018-12-02 01:34:17,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 01:34:17,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-12-02 01:34:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:17,968 INFO L225 Difference]: With dead ends: 1480 [2018-12-02 01:34:17,968 INFO L226 Difference]: Without dead ends: 906 [2018-12-02 01:34:17,969 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 01:34:17,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2018-12-02 01:34:17,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 886. [2018-12-02 01:34:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-12-02 01:34:17,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1236 transitions. [2018-12-02 01:34:17,998 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1236 transitions. Word has length 152 [2018-12-02 01:34:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:17,998 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1236 transitions. [2018-12-02 01:34:17,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:34:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1236 transitions. [2018-12-02 01:34:18,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-12-02 01:34:18,002 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:18,002 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:18,003 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:18,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:18,003 INFO L82 PathProgramCache]: Analyzing trace with hash -303103034, now seen corresponding path program 1 times [2018-12-02 01:34:18,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:18,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:18,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:18,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:18,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:18,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:18,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 01:34:18,114 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:18,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 01:34:18,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 01:34:18,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 01:34:18,115 INFO L87 Difference]: Start difference. First operand 886 states and 1236 transitions. Second operand 4 states. [2018-12-02 01:34:18,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:18,711 INFO L93 Difference]: Finished difference Result 1766 states and 2472 transitions. [2018-12-02 01:34:18,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 01:34:18,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2018-12-02 01:34:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:18,714 INFO L225 Difference]: With dead ends: 1766 [2018-12-02 01:34:18,714 INFO L226 Difference]: Without dead ends: 886 [2018-12-02 01:34:18,716 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 01:34:18,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2018-12-02 01:34:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 737. [2018-12-02 01:34:18,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2018-12-02 01:34:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 950 transitions. [2018-12-02 01:34:18,729 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 950 transitions. Word has length 199 [2018-12-02 01:34:18,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:18,730 INFO L480 AbstractCegarLoop]: Abstraction has 737 states and 950 transitions. [2018-12-02 01:34:18,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 01:34:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 950 transitions. [2018-12-02 01:34:18,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-12-02 01:34:18,732 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:18,732 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:18,732 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:18,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:18,732 INFO L82 PathProgramCache]: Analyzing trace with hash 421403873, now seen corresponding path program 1 times [2018-12-02 01:34:18,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:18,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:18,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:18,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:18,733 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:18,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:34:18,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 01:34:18,834 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:18,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:34:18,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:34:18,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:34:18,835 INFO L87 Difference]: Start difference. First operand 737 states and 950 transitions. Second operand 6 states. [2018-12-02 01:34:19,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:19,328 INFO L93 Difference]: Finished difference Result 1947 states and 2629 transitions. [2018-12-02 01:34:19,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 01:34:19,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2018-12-02 01:34:19,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:19,333 INFO L225 Difference]: With dead ends: 1947 [2018-12-02 01:34:19,333 INFO L226 Difference]: Without dead ends: 1216 [2018-12-02 01:34:19,335 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 01:34:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2018-12-02 01:34:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1190. [2018-12-02 01:34:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2018-12-02 01:34:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1534 transitions. [2018-12-02 01:34:19,361 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1534 transitions. Word has length 202 [2018-12-02 01:34:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:19,362 INFO L480 AbstractCegarLoop]: Abstraction has 1190 states and 1534 transitions. [2018-12-02 01:34:19,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:34:19,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1534 transitions. [2018-12-02 01:34:19,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-12-02 01:34:19,365 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:19,365 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-02 01:34:19,365 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:19,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:19,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1534813554, now seen corresponding path program 1 times [2018-12-02 01:34:19,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:19,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:19,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:19,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:19,366 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 128 proven. 65 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 01:34:19,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:19,455 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:19,455 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-12-02 01:34:19,455 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [494], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:34:19,457 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:19,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:19,510 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 01:34:19,510 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Performed 767 root evaluator evaluations with a maximum evaluation depth of 8. Performed 767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Never found a fixpoint. Largest state had 24 variables. [2018-12-02 01:34:19,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:19,512 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 01:34:19,717 INFO L227 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 73.78% of their original sizes. [2018-12-02 01:34:19,717 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 01:34:19,735 INFO L418 sIntCurrentIteration]: We unified 220 AI predicates to 220 [2018-12-02 01:34:19,735 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 01:34:19,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 01:34:19,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-02 01:34:19,736 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 01:34:19,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 01:34:19,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 01:34:19,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 01:34:19,737 INFO L87 Difference]: Start difference. First operand 1190 states and 1534 transitions. Second operand 6 states. [2018-12-02 01:34:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:34:23,040 INFO L93 Difference]: Finished difference Result 2518 states and 3256 transitions. [2018-12-02 01:34:23,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 01:34:23,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2018-12-02 01:34:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:34:23,043 INFO L225 Difference]: With dead ends: 2518 [2018-12-02 01:34:23,043 INFO L226 Difference]: Without dead ends: 1334 [2018-12-02 01:34:23,044 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 221 GetRequests, 216 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 01:34:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2018-12-02 01:34:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1333. [2018-12-02 01:34:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1333 states. [2018-12-02 01:34:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1685 transitions. [2018-12-02 01:34:23,061 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1685 transitions. Word has length 221 [2018-12-02 01:34:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:34:23,061 INFO L480 AbstractCegarLoop]: Abstraction has 1333 states and 1685 transitions. [2018-12-02 01:34:23,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 01:34:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1685 transitions. [2018-12-02 01:34:23,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-12-02 01:34:23,063 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:34:23,063 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 01:34:23,063 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:34:23,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:23,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1716693714, now seen corresponding path program 1 times [2018-12-02 01:34:23,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:34:23,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:23,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:23,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:34:23,064 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:34:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:23,177 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 132 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:23,178 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:23,178 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:34:23,178 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-12-02 01:34:23,178 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:34:23,180 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:34:23,180 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:34:23,269 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:34:23,269 INFO L272 AbstractInterpreter]: Visited 95 different actions 278 times. Merged at 6 different actions 14 times. Never widened. Performed 2670 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2670 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 01:34:23,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:34:23,274 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:34:23,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:34:23,274 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:34:23,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:34:23,283 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:34:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:34:23,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:34:33,193 WARN L180 SmtUtils]: Spent 9.82 s on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2018-12-02 01:34:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:33,233 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:34:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 131 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:34:33,394 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 01:34:33,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2018-12-02 01:34:33,394 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 01:34:33,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 01:34:33,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 01:34:33,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-12-02 01:34:33,395 INFO L87 Difference]: Start difference. First operand 1333 states and 1685 transitions. Second operand 12 states. [2018-12-02 01:34:35,814 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 57 DAG size of output: 26 [2018-12-02 01:34:37,087 WARN L180 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 54 DAG size of output: 28 [2018-12-02 01:34:42,961 WARN L180 SmtUtils]: Spent 5.82 s on a formula simplification that was a NOOP. DAG size: 53 [2018-12-02 01:34:47,015 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 53 [2018-12-02 01:34:53,268 WARN L180 SmtUtils]: Spent 6.18 s on a formula simplification that was a NOOP. DAG size: 55 [2018-12-02 01:35:04,122 WARN L180 SmtUtils]: Spent 10.82 s on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-12-02 01:35:10,922 WARN L180 SmtUtils]: Spent 6.64 s on a formula simplification. DAG size of input: 61 DAG size of output: 28 [2018-12-02 01:35:18,881 WARN L180 SmtUtils]: Spent 6.95 s on a formula simplification that was a NOOP. DAG size: 57 [2018-12-02 01:35:20,082 WARN L180 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2018-12-02 01:35:21,440 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2018-12-02 01:35:32,314 WARN L180 SmtUtils]: Spent 10.76 s on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2018-12-02 01:35:33,576 WARN L180 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2018-12-02 01:35:41,889 WARN L180 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-12-02 01:35:42,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:35:42,743 INFO L93 Difference]: Finished difference Result 4087 states and 5531 transitions. [2018-12-02 01:35:42,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-12-02 01:35:42,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2018-12-02 01:35:42,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:35:42,751 INFO L225 Difference]: With dead ends: 4087 [2018-12-02 01:35:42,751 INFO L226 Difference]: Without dead ends: 2903 [2018-12-02 01:35:42,754 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 470 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 75.4s TimeCoverageRelationStatistics Valid=721, Invalid=2141, Unknown=0, NotChecked=0, Total=2862 [2018-12-02 01:35:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2018-12-02 01:35:42,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2825. [2018-12-02 01:35:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2018-12-02 01:35:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3355 transitions. [2018-12-02 01:35:42,799 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3355 transitions. Word has length 227 [2018-12-02 01:35:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:35:42,800 INFO L480 AbstractCegarLoop]: Abstraction has 2825 states and 3355 transitions. [2018-12-02 01:35:42,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 01:35:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3355 transitions. [2018-12-02 01:35:42,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-12-02 01:35:42,802 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:35:42,802 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-02 01:35:42,802 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:35:42,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:35:42,802 INFO L82 PathProgramCache]: Analyzing trace with hash 805990106, now seen corresponding path program 1 times [2018-12-02 01:35:42,802 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:35:42,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:35:42,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:35:42,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:35:42,803 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:35:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:35:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 129 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-12-02 01:35:42,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:35:42,904 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:35:42,904 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 232 with the following transitions: [2018-12-02 01:35:42,904 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [542], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:35:42,906 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:35:42,906 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:35:43,011 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:35:43,011 INFO L272 AbstractInterpreter]: Visited 90 different actions 261 times. Merged at 6 different actions 12 times. Never widened. Performed 2488 root evaluator evaluations with a maximum evaluation depth of 8. Performed 2488 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 01:35:43,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:35:43,014 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:35:43,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:35:43,014 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:35:43,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:35:43,021 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:35:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:35:43,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:35:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:35:43,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:35:43,179 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:35:43,194 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 01:35:43,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2018-12-02 01:35:43,195 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 01:35:43,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 01:35:43,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 01:35:43,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-02 01:35:43,195 INFO L87 Difference]: Start difference. First operand 2825 states and 3355 transitions. Second operand 11 states. [2018-12-02 01:35:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:35:44,365 INFO L93 Difference]: Finished difference Result 7954 states and 9536 transitions. [2018-12-02 01:35:44,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-02 01:35:44,366 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 231 [2018-12-02 01:35:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:35:44,374 INFO L225 Difference]: With dead ends: 7954 [2018-12-02 01:35:44,374 INFO L226 Difference]: Without dead ends: 3375 [2018-12-02 01:35:44,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 466 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-12-02 01:35:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2018-12-02 01:35:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 2511. [2018-12-02 01:35:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2511 states. [2018-12-02 01:35:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 2794 transitions. [2018-12-02 01:35:44,421 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 2794 transitions. Word has length 231 [2018-12-02 01:35:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:35:44,422 INFO L480 AbstractCegarLoop]: Abstraction has 2511 states and 2794 transitions. [2018-12-02 01:35:44,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 01:35:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 2794 transitions. [2018-12-02 01:35:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-12-02 01:35:44,425 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:35:44,425 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 01:35:44,425 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:35:44,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:35:44,425 INFO L82 PathProgramCache]: Analyzing trace with hash -807705670, now seen corresponding path program 1 times [2018-12-02 01:35:44,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:35:44,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:35:44,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:35:44,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:35:44,426 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:35:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:35:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 281 proven. 166 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 01:35:44,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:35:44,755 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:35:44,755 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 360 with the following transitions: [2018-12-02 01:35:44,755 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [566], [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], [667], [671], [675], [678], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:35:44,757 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:35:44,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:35:45,394 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:35:45,394 INFO L272 AbstractInterpreter]: Visited 125 different actions 251 times. Merged at 7 different actions 12 times. Never widened. Performed 2571 root evaluator evaluations with a maximum evaluation depth of 20. Performed 2571 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 01:35:45,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:35:45,407 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:35:45,407 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:35:45,407 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:35:45,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:35:45,413 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:35:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:35:45,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:35:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-12-02 01:35:45,519 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:35:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-12-02 01:35:45,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 01:35:45,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 16 [2018-12-02 01:35:45,715 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 01:35:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 01:35:45,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 01:35:45,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-12-02 01:35:45,716 INFO L87 Difference]: Start difference. First operand 2511 states and 2794 transitions. Second operand 15 states. [2018-12-02 01:35:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:35:48,586 INFO L93 Difference]: Finished difference Result 6435 states and 7409 transitions. [2018-12-02 01:35:48,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-02 01:35:48,587 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 359 [2018-12-02 01:35:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:35:48,596 INFO L225 Difference]: With dead ends: 6435 [2018-12-02 01:35:48,596 INFO L226 Difference]: Without dead ends: 4073 [2018-12-02 01:35:48,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 742 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=468, Invalid=1982, Unknown=0, NotChecked=0, Total=2450 [2018-12-02 01:35:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2018-12-02 01:35:48,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3262. [2018-12-02 01:35:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3262 states. [2018-12-02 01:35:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 3621 transitions. [2018-12-02 01:35:48,656 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 3621 transitions. Word has length 359 [2018-12-02 01:35:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:35:48,656 INFO L480 AbstractCegarLoop]: Abstraction has 3262 states and 3621 transitions. [2018-12-02 01:35:48,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 01:35:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 3621 transitions. [2018-12-02 01:35:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-12-02 01:35:48,660 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:35:48,660 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-12-02 01:35:48,660 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:35:48,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:35:48,660 INFO L82 PathProgramCache]: Analyzing trace with hash 362141877, now seen corresponding path program 1 times [2018-12-02 01:35:48,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:35:48,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:35:48,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:35:48,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:35:48,661 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:35:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:35:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 253 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:35:49,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:35:49,169 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:35:49,170 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-12-02 01:35:49,170 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:35:49,172 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:35:49,172 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:35:49,299 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:35:49,299 INFO L272 AbstractInterpreter]: Visited 144 different actions 426 times. Merged at 7 different actions 15 times. Never widened. Performed 4509 root evaluator evaluations with a maximum evaluation depth of 9. Performed 4509 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-02 01:35:49,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:35:49,302 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:35:49,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:35:49,302 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:35:49,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:35:49,310 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:35:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:35:49,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:35:52,312 WARN L180 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-02 01:35:56,423 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-12-02 01:35:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 166 proven. 204 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-12-02 01:35:57,674 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:35:57,885 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,095 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-12-02 01:35:58,097 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,196 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,244 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,287 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,330 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,373 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,467 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,513 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,563 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,659 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,704 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,749 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,798 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,898 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:58,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,060 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,109 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,157 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,202 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,300 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,345 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,392 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,439 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,485 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,530 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,578 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,624 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,670 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,715 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,761 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,873 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,929 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:35:59,986 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,044 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,151 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,199 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,255 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,314 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,383 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,430 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,478 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,524 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,577 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,627 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,672 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,715 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,802 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,848 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:00,955 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,000 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,049 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,102 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,194 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,242 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,295 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,344 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,399 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,445 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,492 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,537 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,584 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,629 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,672 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,808 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,854 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:01,902 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:36:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-12-02 01:36:02,315 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 01:36:02,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 6] total 30 [2018-12-02 01:36:02,315 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 01:36:02,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-02 01:36:02,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-02 01:36:02,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=756, Unknown=2, NotChecked=0, Total=870 [2018-12-02 01:36:02,316 INFO L87 Difference]: Start difference. First operand 3262 states and 3621 transitions. Second operand 27 states. [2018-12-02 01:36:03,688 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-12-02 01:36:07,492 WARN L180 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-12-02 01:36:28,836 WARN L180 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2018-12-02 01:36:35,540 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2018-12-02 01:36:39,051 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2018-12-02 01:36:41,042 WARN L180 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2018-12-02 01:36:45,548 WARN L180 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2018-12-02 01:36:54,453 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2018-12-02 01:36:56,644 WARN L180 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 87 DAG size of output: 40 [2018-12-02 01:37:37,615 WARN L180 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 120 DAG size of output: 77 [2018-12-02 01:38:07,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:38:07,858 INFO L93 Difference]: Finished difference Result 8966 states and 10121 transitions. [2018-12-02 01:38:07,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-12-02 01:38:07,859 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 400 [2018-12-02 01:38:07,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:38:07,871 INFO L225 Difference]: With dead ends: 8966 [2018-12-02 01:38:07,871 INFO L226 Difference]: Without dead ends: 5853 [2018-12-02 01:38:07,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 726 SyntacticMatches, 84 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6854 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=2632, Invalid=13869, Unknown=11, NotChecked=0, Total=16512 [2018-12-02 01:38:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5853 states. [2018-12-02 01:38:07,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5853 to 4412. [2018-12-02 01:38:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4412 states. [2018-12-02 01:38:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 4803 transitions. [2018-12-02 01:38:07,975 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 4803 transitions. Word has length 400 [2018-12-02 01:38:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:38:07,975 INFO L480 AbstractCegarLoop]: Abstraction has 4412 states and 4803 transitions. [2018-12-02 01:38:07,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-02 01:38:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 4803 transitions. [2018-12-02 01:38:07,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2018-12-02 01:38:07,981 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 01:38:07,981 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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 01:38:07,981 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 01:38:07,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:07,981 INFO L82 PathProgramCache]: Analyzing trace with hash 466690654, now seen corresponding path program 1 times [2018-12-02 01:38:07,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 01:38:07,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:07,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:07,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:38:07,982 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 01:38:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:08,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 545 proven. 410 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-12-02 01:38:08,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:38:08,908 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 01:38:08,908 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 606 with the following transitions: [2018-12-02 01:38:08,909 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], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [730], [731], [735], [739], [743], [747], [751], [754], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-02 01:38:08,910 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 01:38:08,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 01:38:09,144 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 01:38:09,144 INFO L272 AbstractInterpreter]: Visited 146 different actions 589 times. Merged at 9 different actions 36 times. Never widened. Performed 6325 root evaluator evaluations with a maximum evaluation depth of 14. Performed 6325 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Found 11 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-02 01:38:09,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:38:09,146 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 01:38:09,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 01:38:09,146 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/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 01:38:09,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:38:09,152 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 01:38:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:38:09,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 01:38:10,900 WARN L180 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 72 DAG size of output: 23 [2018-12-02 01:38:12,477 WARN L180 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-12-02 01:38:15,965 WARN L180 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 123 DAG size of output: 62 [2018-12-02 01:38:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 822 proven. 134 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-12-02 01:38:16,324 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 01:38:16,545 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:16,713 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2018-12-02 01:38:16,714 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:16,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:16,808 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:16,861 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:16,915 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:16,970 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,024 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,074 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,122 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,269 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,321 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,367 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,512 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,559 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,655 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,700 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,750 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,846 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,900 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:17,953 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,002 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,049 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,115 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,165 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,218 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,265 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,313 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,362 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,413 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,457 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,506 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,556 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,599 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,645 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,689 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,781 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,829 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,874 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:18,978 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,030 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,084 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,242 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,292 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,336 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,382 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,429 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,481 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,629 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,677 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,724 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,868 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,915 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:19,961 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,056 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,154 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,212 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,267 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,314 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,364 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,409 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,456 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,503 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:20,552 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-12-02 01:38:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 662 proven. 2 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-12-02 01:38:21,104 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 01:38:21,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9, 6] total 31 [2018-12-02 01:38:21,105 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 01:38:21,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-02 01:38:21,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-02 01:38:21,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=810, Unknown=1, NotChecked=0, Total=930 [2018-12-02 01:38:21,106 INFO L87 Difference]: Start difference. First operand 4412 states and 4803 transitions. Second operand 27 states. [2018-12-02 01:38:22,307 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2018-12-02 01:38:25,113 WARN L180 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2018-12-02 01:38:26,554 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2018-12-02 01:38:31,408 WARN L180 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-12-02 01:38:34,988 WARN L180 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-12-02 01:38:38,685 WARN L180 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2018-12-02 01:38:41,841 WARN L180 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-12-02 01:38:47,180 WARN L180 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-12-02 01:38:49,515 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 70 DAG size of output: 39 [2018-12-02 01:38:51,204 WARN L180 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2018-12-02 01:38:53,749 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2018-12-02 01:38:56,318 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2018-12-02 01:38:58,245 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2018-12-02 01:39:00,083 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-02 01:39:04,075 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2018-12-02 01:39:07,583 WARN L180 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 121 DAG size of output: 101 [2018-12-02 01:39:09,309 WARN L180 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2018-12-02 01:39:11,249 WARN L180 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-12-02 01:39:13,248 WARN L180 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2018-12-02 01:39:15,000 WARN L180 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-12-02 01:39:17,154 WARN L180 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-12-02 01:39:20,659 WARN L180 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2018-12-02 01:39:22,463 WARN L180 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2018-12-02 01:39:24,594 WARN L180 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2018-12-02 01:39:29,353 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-12-02 01:39:31,679 WARN L180 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2018-12-02 01:39:33,597 WARN L180 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2018-12-02 01:39:36,155 WARN L180 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2018-12-02 01:39:38,236 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2018-12-02 01:39:39,997 WARN L180 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-02 01:39:41,725 WARN L180 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2018-12-02 01:39:44,252 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-02 01:39:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:39:44,933 INFO L93 Difference]: Finished difference Result 9282 states and 10502 transitions. [2018-12-02 01:39:44,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-12-02 01:39:44,934 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 605 [2018-12-02 01:39:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 01:39:44,934 INFO L225 Difference]: With dead ends: 9282 [2018-12-02 01:39:44,934 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 01:39:44,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1369 GetRequests, 1170 SyntacticMatches, 79 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6195 ImplicationChecksByTransitivity, 71.0s TimeCoverageRelationStatistics Valid=2320, Invalid=12441, Unknown=1, NotChecked=0, Total=14762 [2018-12-02 01:39:44,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 01:39:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 01:39:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 01:39:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 01:39:44,944 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 605 [2018-12-02 01:39:44,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 01:39:44,944 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 01:39:44,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-02 01:39:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 01:39:44,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 01:39:44,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 01:39:45,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,225 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,503 WARN L180 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 510 DAG size of output: 442 [2018-12-02 01:39:45,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,540 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 01:39:45,861 WARN L180 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 440 [2018-12-02 01:39:57,734 WARN L180 SmtUtils]: Spent 11.81 s on a formula simplification. DAG size of input: 389 DAG size of output: 101 [2018-12-02 01:40:13,008 WARN L180 SmtUtils]: Spent 15.27 s on a formula simplification. DAG size of input: 442 DAG size of output: 72 [2018-12-02 01:40:30,058 WARN L180 SmtUtils]: Spent 17.05 s on a formula simplification. DAG size of input: 439 DAG size of output: 72 [2018-12-02 01:40:30,059 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 01:40:30,059 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|)) [2018-12-02 01:40:30,059 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 01:40:30,059 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-02 01:40:30,060 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-02 01:40:30,061 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-02 01:40:30,062 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-02 01:40:30,063 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-02 01:40:30,064 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-02 01:40:30,065 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 199) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-12-02 01:40:30,066 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,067 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-12-02 01:40:30,068 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse16 (= 9 |old(~a19~0)|)) (.cse17 (= |old(~a19~0)| ~a19~0)) (.cse7 (< |old(~a10~0)| 2)) (.cse18 (<= (+ |old(~a1~0)| 13) 0)) (.cse2 (= 8 |old(~a19~0)|)) (.cse6 (= ~a1~0 |old(~a1~0)|)) (.cse14 (= ~a19~0 |old(~a19~0)|)) (.cse15 (= |old(~a10~0)| ~a10~0))) (let ((.cse9 (< |old(~a1~0)| 23)) (.cse11 (and .cse6 .cse14 .cse15)) (.cse8 (or .cse7 (= 10 |old(~a19~0)|) .cse18 .cse2)) (.cse13 (forall ((v_~a1~0_430 Int)) (let ((.cse20 (mod v_~a1~0_430 299993))) (or (= .cse20 0) (< 0 (+ v_~a1~0_430 13)) (< (+ |old(~a1~0)| 600000) .cse20) (<= 0 v_~a1~0_430))))) (.cse0 (< 8 |old(~a19~0)|)) (.cse1 (and .cse17 .cse15)) (.cse12 (not .cse16)) (.cse3 (= 1 |old(~a10~0)|)) (.cse4 (not (= 14 ~a4~0))) (.cse10 (and .cse15 .cse14 .cse6)) (.cse5 (not (= 0 ~a12~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (or .cse2 (not (= 2 |old(~a10~0)|))) .cse4 .cse5 (and .cse6 .cse1)) (or (<= 449589 ~a1~0) .cse7 .cse0 (< |old(~a1~0)| 449589)) (or .cse8 .cse9 .cse4 .cse5 .cse10) (or (< 4 |old(~a1~0)|) .cse11 .cse4 .cse5 .cse12 (not (= 3 |old(~a10~0)|)) .cse13) (or .cse9 .cse4 .cse5 .cse12 (not (= 0 |old(~a10~0)|)) .cse11) (or (and .cse14 .cse15 .cse6) (or .cse16 (< 2 |old(~a10~0)|) .cse2) .cse4 .cse5) (or (and .cse17 (< 0 (+ ~a1~0 13)) .cse15) .cse0 .cse18) (or .cse10 (or .cse4 (let ((.cse19 (< |old(~a10~0)| 4))) (and (or .cse8 .cse19) (or .cse12 .cse19))) .cse5) .cse13) (or .cse7 .cse0 .cse1) (or (or .cse12 (not .cse3)) .cse4 .cse10 .cse5)))) [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-02 01:40:30,069 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-02 01:40:30,070 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-12-02 01:40:30,071 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14) (= 9 ~a19~0)) [2018-12-02 01:40:30,072 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 01:40:30,072 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (and (= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= |old(~a10~0)| ~a10~0)) (not (= 0 |old(~a10~0)|))) [2018-12-02 01:40:30,072 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-12-02 01:40:30,073 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (let ((.cse5 (<= 2 ~a10~0)) (.cse6 (not (= ~a19~0 10))) (.cse4 (< 0 (+ ~a1~0 13)))) (let ((.cse0 (and .cse5 .cse6 .cse4)) (.cse1 (<= 23 ~a1~0)) (.cse2 (and .cse5 .cse6))) (or (and (<= 4 ~a10~0) .cse0) (not (= 0 |old(~a10~0)|)) (and .cse1 .cse0) (and (not (= ~a19~0 8)) (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= |old(~a19~0)| ~a19~0) (= 1 ~a10~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) .cse2) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse1 (= 0 ~a10~0)) (= 2 ~a10~0) (and (exists ((v_~a1~0_430 Int)) (let ((.cse3 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse3 (+ ~a1~0 600000)) (not (= .cse3 0))))) (<= ~a1~0 4) .cse2 (= 9 ~a19~0)) (and (= 8 ~a19~0) .cse4) (not (= 9 |old(~a19~0)|))))) [2018-12-02 01:40:30,073 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-12-02 01:40:30,073 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-12-02 01:40:30,073 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse5 (<= 2 ~a10~0)) (.cse6 (not (= ~a19~0 10))) (.cse4 (< 0 (+ ~a1~0 13)))) (let ((.cse0 (and .cse5 .cse6 .cse4)) (.cse1 (<= 23 ~a1~0)) (.cse2 (and .cse5 .cse6))) (or (and (<= 4 ~a10~0) .cse0) (not (= 0 |old(~a10~0)|)) (and .cse1 .cse0) (and (not (= ~a19~0 8)) (<= ~a10~0 2) (not (= ~a19~0 9))) (and (= |old(~a19~0)| ~a19~0) (= 1 ~a10~0)) (not (= 14 ~a4~0)) (and (<= ~a19~0 8) .cse2) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse1 (= 0 ~a10~0)) (= 2 ~a10~0) (and (exists ((v_~a1~0_430 Int)) (let ((.cse3 (mod v_~a1~0_430 299993))) (and (< v_~a1~0_430 0) (<= (+ v_~a1~0_430 13) 0) (<= .cse3 (+ ~a1~0 600000)) (not (= .cse3 0))))) (<= ~a1~0 4) .cse2 (= 9 ~a19~0)) (and (= 8 ~a19~0) .cse4) (not (= 9 |old(~a19~0)|))))) [2018-12-02 01:40:30,073 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-12-02 01:40:30,077 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,078 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,078 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,078 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,083 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,083 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,083 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,083 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:40:30 BoogieIcfgContainer [2018-12-02 01:40:30,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 01:40:30,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 01:40:30,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 01:40:30,086 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 01:40:30,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:34:15" (3/4) ... [2018-12-02 01:40:30,089 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 01:40:30,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 01:40:30,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-02 01:40:30,095 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 01:40:30,103 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 01:40:30,104 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 01:40:30,128 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((4 <= a10 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13) || !(0 == \old(a10))) || (23 <= a1 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (\old(a19) == a19 && 1 == a10)) || !(14 == a4)) || (a19 <= 8 && 2 <= a10 && !(a19 == 10))) || !(23 == \old(a1))) || !(0 == a12)) || (23 <= a1 && 0 == a10)) || 2 == a10) || ((((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && a1 <= 4) && 2 <= a10 && !(a19 == 10)) && 9 == a19)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19)) [2018-12-02 01:40:30,168 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7d492ab7-76ec-47ab-a79b-1cadc02fd89c/bin-2019/utaipan/witness.graphml [2018-12-02 01:40:30,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 01:40:30,169 INFO L168 Benchmark]: Toolchain (without parser) took 375842.43 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 892.9 MB). Free memory was 941.6 MB in the beginning and 1.5 GB in the end (delta: -559.4 MB). Peak memory consumption was 333.5 MB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,169 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:40:30,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,170 INFO L168 Benchmark]: Boogie Preprocessor took 37.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,170 INFO L168 Benchmark]: RCFGBuilder took 627.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.4 MB). Peak memory consumption was 104.4 MB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,170 INFO L168 Benchmark]: TraceAbstraction took 374766.73 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 768.1 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -518.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,170 INFO L168 Benchmark]: Witness Printer took 82.72 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-12-02 01:40:30,172 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 627.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.4 MB). Peak memory consumption was 104.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 374766.73 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 768.1 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -518.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 82.72 ms. Allocated memory is still 1.9 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 199]: 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: 582]: Loop Invariant [2018-12-02 01:40:30,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,175 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,176 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,176 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,176 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2018-12-02 01:40:30,176 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] Derived loop invariant: (((((((((((((4 <= a10 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13) || !(0 == \old(a10))) || (23 <= a1 && (2 <= a10 && !(a19 == 10)) && 0 < a1 + 13)) || ((!(a19 == 8) && a10 <= 2) && !(a19 == 9))) || (\old(a19) == a19 && 1 == a10)) || !(14 == a4)) || (a19 <= 8 && 2 <= a10 && !(a19 == 10))) || !(23 == \old(a1))) || !(0 == a12)) || (23 <= a1 && 0 == a10)) || 2 == a10) || ((((\exists v_~a1~0_430 : int :: ((v_~a1~0_430 < 0 && v_~a1~0_430 + 13 <= 0) && v_~a1~0_430 % 299993 <= a1 + 600000) && !(v_~a1~0_430 % 299993 == 0)) && a1 <= 4) && 2 <= a10 && !(a19 == 10)) && 9 == a19)) || (8 == a19 && 0 < a1 + 13)) || !(9 == \old(a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 374.7s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 288.7s AutomataDifference, 0.0s DeadEndRemovalTime, 45.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 956 SDtfs, 18422 SDslu, 2150 SDs, 0 SdLazy, 36255 SolverSat, 5471 SolverUnsat, 78 SolverUnknown, 0 SolverNotchecked, 127.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 4660 GetRequests, 4083 SyntacticMatches, 177 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14645 ImplicationChecksByTransitivity, 189.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4412occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 7 AbstIntIterations, 1 AbstIntStrong, 0.9974409681227866 AbsIntWeakeningRatio, 0.11818181818181818 AbsIntAvgWeakeningVarsNumRemoved, 15.522727272727273 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 3533 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 218 PreInvPairs, 396 NumberOfFragments, 708 HoareAnnotationTreeSize, 218 FomulaSimplifications, 139059 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 68813 FormulaSimplificationTreeSizeReductionInter, 44.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 36.8s InterpolantComputationTime, 4771 NumberOfCodeBlocks, 4771 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6711 ConstructedInterpolants, 330 QuantifiedInterpolants, 24734010 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3131 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 6841/8264 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...