./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/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 3a5c86310b0cee0c3fda3eee1e81be72e3f86b95 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 08:56:27,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:56:27,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:56:27,755 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:56:27,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:56:27,756 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:56:27,757 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:56:27,759 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:56:27,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:56:27,761 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:56:27,761 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:56:27,761 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:56:27,762 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:56:27,763 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:56:27,764 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:56:27,765 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:56:27,765 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:56:27,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:56:27,768 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:56:27,770 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:56:27,771 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:56:27,772 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:56:27,773 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:56:27,773 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:56:27,774 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:56:27,774 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:56:27,775 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:56:27,776 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:56:27,777 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:56:27,777 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:56:27,778 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:56:27,778 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:56:27,778 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:56:27,778 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:56:27,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:56:27,780 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:56:27,780 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 08:56:27,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:56:27,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:56:27,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:56:27,791 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 08:56:27,792 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 08:56:27,792 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 08:56:27,792 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 08:56:27,792 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 08:56:27,792 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 08:56:27,792 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 08:56:27,792 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 08:56:27,793 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 08:56:27,793 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 08:56:27,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:56:27,793 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:56:27,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:56:27,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:56:27,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:56:27,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:56:27,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:56:27,794 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:56:27,796 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:56:27,796 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:56:27,796 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:56:27,796 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:56:27,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:56:27,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:56:27,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:56:27,797 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:56:27,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:56:27,798 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 08:56:27,798 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_6cab4f9b-4fe2-4531-b425-223eb376cd0f/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 -> 3a5c86310b0cee0c3fda3eee1e81be72e3f86b95 [2018-11-18 08:56:27,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:56:27,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:56:27,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:56:27,830 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:56:27,830 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:56:27,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c [2018-11-18 08:56:27,865 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/data/50f28d442/bb533985eece4b198053565c3bd55bf8/FLAG4138b52fd [2018-11-18 08:56:28,330 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:56:28,331 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/sv-benchmarks/c/eca-rers2012/Problem14_label45_true-unreach-call_false-termination.c [2018-11-18 08:56:28,342 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/data/50f28d442/bb533985eece4b198053565c3bd55bf8/FLAG4138b52fd [2018-11-18 08:56:28,847 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/data/50f28d442/bb533985eece4b198053565c3bd55bf8 [2018-11-18 08:56:28,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:56:28,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 08:56:28,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:56:28,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:56:28,852 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:56:28,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:28" (1/1) ... [2018-11-18 08:56:28,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:28, skipping insertion in model container [2018-11-18 08:56:28,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:56:28" (1/1) ... [2018-11-18 08:56:28,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:56:28,905 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:56:29,139 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:56:29,142 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:56:29,219 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:56:29,231 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:56:29,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29 WrapperNode [2018-11-18 08:56:29,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:56:29,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 08:56:29,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 08:56:29,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 08:56:29,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 08:56:29,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:56:29,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:56:29,324 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:56:29,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... [2018-11-18 08:56:29,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:56:29,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:56:29,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:56:29,376 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:56:29,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:56:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 08:56:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:56:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:56:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 08:56:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 08:56:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:56:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:56:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:56:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:56:30,466 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:56:30,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:30 BoogieIcfgContainer [2018-11-18 08:56:30,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:56:30,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:56:30,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:56:30,469 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:56:30,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:56:28" (1/3) ... [2018-11-18 08:56:30,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274d01e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:56:30, skipping insertion in model container [2018-11-18 08:56:30,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:56:29" (2/3) ... [2018-11-18 08:56:30,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274d01e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:56:30, skipping insertion in model container [2018-11-18 08:56:30,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:30" (3/3) ... [2018-11-18 08:56:30,472 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label45_true-unreach-call_false-termination.c [2018-11-18 08:56:30,480 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:56:30,486 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:56:30,498 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:56:30,525 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:56:30,525 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:56:30,525 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:56:30,525 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:56:30,525 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:56:30,526 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:56:30,526 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:56:30,526 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:56:30,544 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 08:56:30,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 08:56:30,550 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:56:30,550 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:30,552 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:56:30,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:30,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1525638783, now seen corresponding path program 1 times [2018-11-18 08:56:30,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:56:30,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:30,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:30,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:30,599 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:56:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:56:30,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:56:30,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:56:30,768 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:56:30,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 08:56:30,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:56:30,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:56:30,787 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-11-18 08:56:31,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:56:31,757 INFO L93 Difference]: Finished difference Result 894 states and 1610 transitions. [2018-11-18 08:56:31,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:56:31,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-18 08:56:31,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:56:31,768 INFO L225 Difference]: With dead ends: 894 [2018-11-18 08:56:31,768 INFO L226 Difference]: Without dead ends: 633 [2018-11-18 08:56:31,773 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:56:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-11-18 08:56:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 434. [2018-11-18 08:56:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 08:56:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 662 transitions. [2018-11-18 08:56:31,820 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 662 transitions. Word has length 43 [2018-11-18 08:56:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:56:31,821 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 662 transitions. [2018-11-18 08:56:31,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 08:56:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 662 transitions. [2018-11-18 08:56:31,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-18 08:56:31,825 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:56:31,825 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:31,825 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:56:31,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:31,826 INFO L82 PathProgramCache]: Analyzing trace with hash 2115089016, now seen corresponding path program 1 times [2018-11-18 08:56:31,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:56:31,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:31,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:31,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:31,827 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:56:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:56:31,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:56:31,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:56:31,932 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:56:31,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 08:56:31,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:56:31,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:56:31,934 INFO L87 Difference]: Start difference. First operand 434 states and 662 transitions. Second operand 4 states. [2018-11-18 08:56:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:56:32,762 INFO L93 Difference]: Finished difference Result 1594 states and 2534 transitions. [2018-11-18 08:56:32,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:56:32,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2018-11-18 08:56:32,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:56:32,766 INFO L225 Difference]: With dead ends: 1594 [2018-11-18 08:56:32,766 INFO L226 Difference]: Without dead ends: 780 [2018-11-18 08:56:32,770 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:56:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2018-11-18 08:56:32,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2018-11-18 08:56:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-11-18 08:56:32,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1153 transitions. [2018-11-18 08:56:32,802 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1153 transitions. Word has length 127 [2018-11-18 08:56:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:56:32,803 INFO L480 AbstractCegarLoop]: Abstraction has 780 states and 1153 transitions. [2018-11-18 08:56:32,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 08:56:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1153 transitions. [2018-11-18 08:56:32,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-18 08:56:32,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:56:32,806 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:32,806 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:56:32,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:32,806 INFO L82 PathProgramCache]: Analyzing trace with hash -385622320, now seen corresponding path program 1 times [2018-11-18 08:56:32,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:56:32,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:32,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:32,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:32,808 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:56:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:56:32,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:56:32,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:56:32,912 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:56:32,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 08:56:32,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:56:32,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:56:32,913 INFO L87 Difference]: Start difference. First operand 780 states and 1153 transitions. Second operand 4 states. [2018-11-18 08:56:33,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:56:33,698 INFO L93 Difference]: Finished difference Result 3018 states and 4609 transitions. [2018-11-18 08:56:33,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:56:33,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2018-11-18 08:56:33,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:56:33,710 INFO L225 Difference]: With dead ends: 3018 [2018-11-18 08:56:33,711 INFO L226 Difference]: Without dead ends: 2244 [2018-11-18 08:56:33,717 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:56:33,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2018-11-18 08:56:33,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2244. [2018-11-18 08:56:33,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2018-11-18 08:56:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3156 transitions. [2018-11-18 08:56:33,769 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3156 transitions. Word has length 139 [2018-11-18 08:56:33,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:56:33,770 INFO L480 AbstractCegarLoop]: Abstraction has 2244 states and 3156 transitions. [2018-11-18 08:56:33,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 08:56:33,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3156 transitions. [2018-11-18 08:56:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-11-18 08:56:33,778 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:56:33,778 INFO L375 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:33,778 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:56:33,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:33,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1047456719, now seen corresponding path program 1 times [2018-11-18 08:56:33,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:56:33,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:33,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:33,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:33,779 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:56:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 08:56:33,942 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:56:33,943 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:56:33,943 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-11-18 08:56:33,945 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:56:33,979 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:56:33,979 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:56:34,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 08:56:34,270 INFO L272 AbstractInterpreter]: Visited 125 different actions 125 times. Never merged. Never widened. Performed 1129 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 08:56:34,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:34,287 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 08:56:34,680 INFO L227 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 77.76% of their original sizes. [2018-11-18 08:56:34,680 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 08:56:34,713 INFO L415 sIntCurrentIteration]: We unified 258 AI predicates to 258 [2018-11-18 08:56:34,713 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 08:56:34,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:56:34,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-18 08:56:34,714 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:56:34,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 08:56:34,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 08:56:34,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 08:56:34,715 INFO L87 Difference]: Start difference. First operand 2244 states and 3156 transitions. Second operand 6 states. [2018-11-18 08:56:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:56:47,166 INFO L93 Difference]: Finished difference Result 4667 states and 6540 transitions. [2018-11-18 08:56:47,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 08:56:47,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2018-11-18 08:56:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:56:47,174 INFO L225 Difference]: With dead ends: 4667 [2018-11-18 08:56:47,174 INFO L226 Difference]: Without dead ends: 2429 [2018-11-18 08:56:47,180 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:56:47,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2018-11-18 08:56:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2427. [2018-11-18 08:56:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2427 states. [2018-11-18 08:56:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3347 transitions. [2018-11-18 08:56:47,216 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3347 transitions. Word has length 259 [2018-11-18 08:56:47,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:56:47,216 INFO L480 AbstractCegarLoop]: Abstraction has 2427 states and 3347 transitions. [2018-11-18 08:56:47,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 08:56:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3347 transitions. [2018-11-18 08:56:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-11-18 08:56:47,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:56:47,222 INFO L375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:56:47,222 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:56:47,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:47,222 INFO L82 PathProgramCache]: Analyzing trace with hash -643952831, now seen corresponding path program 1 times [2018-11-18 08:56:47,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:56:47,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:47,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:56:47,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:56:47,223 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:56:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:56:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 196 proven. 173 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 08:56:47,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:56:47,629 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:56:47,629 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-11-18 08:56:47,629 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:56:47,632 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:56:47,632 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:56:47,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 08:56:47,752 INFO L272 AbstractInterpreter]: Visited 129 different actions 251 times. Merged at 4 different actions 4 times. Never widened. Performed 2341 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2341 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 08:56:47,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:56:47,775 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 08:56:47,997 INFO L227 lantSequenceWeakener]: Weakened 341 states. On average, predicates are now at 77.71% of their original sizes. [2018-11-18 08:56:47,998 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 08:56:48,050 INFO L415 sIntCurrentIteration]: We unified 343 AI predicates to 343 [2018-11-18 08:56:48,050 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 08:56:48,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:56:48,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-18 08:56:48,050 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:56:48,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 08:56:48,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 08:56:48,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 08:56:48,051 INFO L87 Difference]: Start difference. First operand 2427 states and 3347 transitions. Second operand 10 states. [2018-11-18 08:57:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:57:24,260 INFO L93 Difference]: Finished difference Result 5407 states and 7359 transitions. [2018-11-18 08:57:24,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 08:57:24,261 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 344 [2018-11-18 08:57:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:57:24,271 INFO L225 Difference]: With dead ends: 5407 [2018-11-18 08:57:24,271 INFO L226 Difference]: Without dead ends: 2799 [2018-11-18 08:57:24,283 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 352 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 08:57:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2018-11-18 08:57:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2797. [2018-11-18 08:57:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2797 states. [2018-11-18 08:57:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3748 transitions. [2018-11-18 08:57:24,337 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3748 transitions. Word has length 344 [2018-11-18 08:57:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:57:24,337 INFO L480 AbstractCegarLoop]: Abstraction has 2797 states and 3748 transitions. [2018-11-18 08:57:24,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 08:57:24,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3748 transitions. [2018-11-18 08:57:24,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2018-11-18 08:57:24,347 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:57:24,347 INFO L375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:57:24,348 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:57:24,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:57:24,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1536953169, now seen corresponding path program 1 times [2018-11-18 08:57:24,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:57:24,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:57:24,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:57:24,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:57:24,349 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:57:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:57:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 246 proven. 124 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-18 08:57:24,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:57:24,683 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:57:24,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 385 with the following transitions: [2018-11-18 08:57:24,683 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:57:24,686 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:57:24,686 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:57:28,246 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 08:57:28,246 INFO L272 AbstractInterpreter]: Visited 129 different actions 386 times. Merged at 7 different actions 21 times. Never widened. Performed 3734 root evaluator evaluations with a maximum evaluation depth of 21. Performed 3734 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 08:57:28,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:57:28,251 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 08:57:28,850 INFO L227 lantSequenceWeakener]: Weakened 381 states. On average, predicates are now at 80.24% of their original sizes. [2018-11-18 08:57:28,850 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 08:57:28,927 INFO L415 sIntCurrentIteration]: We unified 383 AI predicates to 383 [2018-11-18 08:57:28,927 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 08:57:28,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:57:28,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-11-18 08:57:28,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:57:28,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 08:57:28,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 08:57:28,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 08:57:28,931 INFO L87 Difference]: Start difference. First operand 2797 states and 3748 transitions. Second operand 10 states. [2018-11-18 08:57:48,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:57:48,743 INFO L93 Difference]: Finished difference Result 6504 states and 9057 transitions. [2018-11-18 08:57:48,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 08:57:48,743 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 384 [2018-11-18 08:57:48,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:57:48,752 INFO L225 Difference]: With dead ends: 6504 [2018-11-18 08:57:48,752 INFO L226 Difference]: Without dead ends: 3896 [2018-11-18 08:57:48,758 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 394 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-18 08:57:48,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2018-11-18 08:57:48,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3871. [2018-11-18 08:57:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3871 states. [2018-11-18 08:57:48,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3871 states to 3871 states and 5052 transitions. [2018-11-18 08:57:48,806 INFO L78 Accepts]: Start accepts. Automaton has 3871 states and 5052 transitions. Word has length 384 [2018-11-18 08:57:48,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:57:48,807 INFO L480 AbstractCegarLoop]: Abstraction has 3871 states and 5052 transitions. [2018-11-18 08:57:48,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 08:57:48,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3871 states and 5052 transitions. [2018-11-18 08:57:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-11-18 08:57:48,814 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:57:48,814 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:57:48,815 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:57:48,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:57:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1266032232, now seen corresponding path program 1 times [2018-11-18 08:57:48,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:57:48,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:57:48,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:57:48,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:57:48,816 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:57:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:57:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 327 proven. 233 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-18 08:57:49,265 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:57:49,265 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:57:49,266 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 445 with the following transitions: [2018-11-18 08:57:49,266 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:57:49,268 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:57:49,268 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:57:49,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 08:57:49,386 INFO L272 AbstractInterpreter]: Visited 130 different actions 254 times. Merged at 5 different actions 5 times. Never widened. Performed 2331 root evaluator evaluations with a maximum evaluation depth of 16. Performed 2331 inverse root evaluator evaluations with a maximum inverse evaluation depth of 16. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 08:57:49,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:57:49,387 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 08:57:49,604 INFO L227 lantSequenceWeakener]: Weakened 441 states. On average, predicates are now at 77.64% of their original sizes. [2018-11-18 08:57:49,604 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 08:57:49,637 INFO L415 sIntCurrentIteration]: We unified 443 AI predicates to 443 [2018-11-18 08:57:49,637 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 08:57:49,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 08:57:49,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-18 08:57:49,638 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 08:57:49,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 08:57:49,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 08:57:49,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 08:57:49,638 INFO L87 Difference]: Start difference. First operand 3871 states and 5052 transitions. Second operand 10 states. [2018-11-18 08:57:56,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:57:56,680 INFO L93 Difference]: Finished difference Result 7371 states and 9722 transitions. [2018-11-18 08:57:56,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 08:57:56,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 444 [2018-11-18 08:57:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:57:56,687 INFO L225 Difference]: With dead ends: 7371 [2018-11-18 08:57:56,687 INFO L226 Difference]: Without dead ends: 3874 [2018-11-18 08:57:56,693 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 451 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 08:57:56,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3874 states. [2018-11-18 08:57:56,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3874 to 3871. [2018-11-18 08:57:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3871 states. [2018-11-18 08:57:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3871 states to 3871 states and 5044 transitions. [2018-11-18 08:57:56,736 INFO L78 Accepts]: Start accepts. Automaton has 3871 states and 5044 transitions. Word has length 444 [2018-11-18 08:57:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:57:56,736 INFO L480 AbstractCegarLoop]: Abstraction has 3871 states and 5044 transitions. [2018-11-18 08:57:56,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 08:57:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3871 states and 5044 transitions. [2018-11-18 08:57:56,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-11-18 08:57:56,743 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:57:56,743 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:57:56,743 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:57:56,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:57:56,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1878977812, now seen corresponding path program 1 times [2018-11-18 08:57:56,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:57:56,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:57:56,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:57:56,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:57:56,744 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:57:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:57:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 443 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-11-18 08:57:56,911 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:57:56,911 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:57:56,911 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 459 with the following transitions: [2018-11-18 08:57:56,911 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:57:56,913 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:57:56,913 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:00,926 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:00,926 INFO L272 AbstractInterpreter]: Visited 131 different actions 520 times. Merged at 9 different actions 32 times. Never widened. Performed 5140 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5140 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 08:58:00,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:00,928 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:00,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:00,928 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:01,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:01,007 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:01,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 443 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-11-18 08:58:01,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:01,525 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 443 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-11-18 08:58:01,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:01,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-18 08:58:01,542 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:01,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 08:58:01,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 08:58:01,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:58:01,543 INFO L87 Difference]: Start difference. First operand 3871 states and 5044 transitions. Second operand 9 states. [2018-11-18 08:58:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:02,760 INFO L93 Difference]: Finished difference Result 9121 states and 13209 transitions. [2018-11-18 08:58:02,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 08:58:02,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 458 [2018-11-18 08:58:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:02,786 INFO L225 Difference]: With dead ends: 9121 [2018-11-18 08:58:02,787 INFO L226 Difference]: Without dead ends: 5624 [2018-11-18 08:58:02,799 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 917 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2018-11-18 08:58:02,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5624 states. [2018-11-18 08:58:02,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5624 to 5479. [2018-11-18 08:58:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2018-11-18 08:58:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 7284 transitions. [2018-11-18 08:58:02,916 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 7284 transitions. Word has length 458 [2018-11-18 08:58:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:02,917 INFO L480 AbstractCegarLoop]: Abstraction has 5479 states and 7284 transitions. [2018-11-18 08:58:02,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 08:58:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 7284 transitions. [2018-11-18 08:58:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2018-11-18 08:58:02,933 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:02,934 INFO L375 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-11-18 08:58:02,934 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:02,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:02,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1192862648, now seen corresponding path program 1 times [2018-11-18 08:58:02,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:02,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:02,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:02,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:02,935 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 484 proven. 427 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-11-18 08:58:03,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:03,515 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:03,515 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 554 with the following transitions: [2018-11-18 08:58:03,515 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [598], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:03,517 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:03,517 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:07,367 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:07,367 INFO L272 AbstractInterpreter]: Visited 132 different actions 526 times. Merged at 9 different actions 34 times. Widened at 1 different actions 1 times. Performed 5192 root evaluator evaluations with a maximum evaluation depth of 21. Performed 5192 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 08:58:07,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:07,370 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:07,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:07,370 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:07,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:07,376 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:07,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:07,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 577 proven. 2 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2018-11-18 08:58:07,583 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 577 proven. 2 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2018-11-18 08:58:07,772 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:07,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 08:58:07,773 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:07,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 08:58:07,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 08:58:07,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-11-18 08:58:07,773 INFO L87 Difference]: Start difference. First operand 5479 states and 7284 transitions. Second operand 17 states. [2018-11-18 08:58:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:10,775 INFO L93 Difference]: Finished difference Result 10941 states and 14778 transitions. [2018-11-18 08:58:10,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-11-18 08:58:10,775 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 553 [2018-11-18 08:58:10,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:10,782 INFO L225 Difference]: With dead ends: 10941 [2018-11-18 08:58:10,782 INFO L226 Difference]: Without dead ends: 2932 [2018-11-18 08:58:10,807 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1193 GetRequests, 1127 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=937, Invalid=3485, Unknown=0, NotChecked=0, Total=4422 [2018-11-18 08:58:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2018-11-18 08:58:10,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2764. [2018-11-18 08:58:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2764 states. [2018-11-18 08:58:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 2930 transitions. [2018-11-18 08:58:10,854 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 2930 transitions. Word has length 553 [2018-11-18 08:58:10,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:10,855 INFO L480 AbstractCegarLoop]: Abstraction has 2764 states and 2930 transitions. [2018-11-18 08:58:10,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 08:58:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 2930 transitions. [2018-11-18 08:58:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2018-11-18 08:58:10,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:10,862 INFO L375 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:58:10,862 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:10,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:10,862 INFO L82 PathProgramCache]: Analyzing trace with hash -459704605, now seen corresponding path program 1 times [2018-11-18 08:58:10,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:10,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:10,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:10,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:10,864 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:11,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 538 proven. 119 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2018-11-18 08:58:11,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:11,249 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:11,249 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 683 with the following transitions: [2018-11-18 08:58:11,249 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:11,251 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:11,251 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:15,180 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:15,180 INFO L272 AbstractInterpreter]: Visited 192 different actions 772 times. Merged at 10 different actions 40 times. Widened at 1 different actions 1 times. Performed 8455 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8455 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 08:58:15,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:15,182 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:15,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:15,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:15,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:15,188 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:15,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 945 proven. 2 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2018-11-18 08:58:15,393 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 538 proven. 119 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2018-11-18 08:58:15,628 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:15,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 08:58:15,629 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:15,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:58:15,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:58:15,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:58:15,630 INFO L87 Difference]: Start difference. First operand 2764 states and 2930 transitions. Second operand 7 states. [2018-11-18 08:58:16,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:16,212 INFO L93 Difference]: Finished difference Result 5975 states and 6669 transitions. [2018-11-18 08:58:16,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 08:58:16,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 682 [2018-11-18 08:58:16,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:16,222 INFO L225 Difference]: With dead ends: 5975 [2018-11-18 08:58:16,222 INFO L226 Difference]: Without dead ends: 3585 [2018-11-18 08:58:16,226 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1378 GetRequests, 1364 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 08:58:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2018-11-18 08:58:16,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3340. [2018-11-18 08:58:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2018-11-18 08:58:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 3591 transitions. [2018-11-18 08:58:16,282 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 3591 transitions. Word has length 682 [2018-11-18 08:58:16,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:16,282 INFO L480 AbstractCegarLoop]: Abstraction has 3340 states and 3591 transitions. [2018-11-18 08:58:16,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:58:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 3591 transitions. [2018-11-18 08:58:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2018-11-18 08:58:16,289 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:16,290 INFO L375 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:58:16,290 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:16,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:16,290 INFO L82 PathProgramCache]: Analyzing trace with hash 139843867, now seen corresponding path program 1 times [2018-11-18 08:58:16,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:16,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:16,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:16,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:16,291 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 422 proven. 294 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2018-11-18 08:58:16,912 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:16,912 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:16,912 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 743 with the following transitions: [2018-11-18 08:58:16,912 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:16,915 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:16,915 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:20,832 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:20,833 INFO L272 AbstractInterpreter]: Visited 192 different actions 767 times. Merged at 10 different actions 35 times. Widened at 1 different actions 1 times. Performed 8405 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8405 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 9 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 08:58:20,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:20,837 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:20,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:20,837 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:20,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:20,843 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:20,921 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 1068 proven. 2 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-11-18 08:58:21,145 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 422 proven. 294 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2018-11-18 08:58:21,550 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:21,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 8 [2018-11-18 08:58:21,550 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:21,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:58:21,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:58:21,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 08:58:21,551 INFO L87 Difference]: Start difference. First operand 3340 states and 3591 transitions. Second operand 7 states. [2018-11-18 08:58:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:22,134 INFO L93 Difference]: Finished difference Result 7200 states and 7829 transitions. [2018-11-18 08:58:22,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 08:58:22,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 742 [2018-11-18 08:58:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:22,143 INFO L225 Difference]: With dead ends: 7200 [2018-11-18 08:58:22,143 INFO L226 Difference]: Without dead ends: 4234 [2018-11-18 08:58:22,147 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1504 GetRequests, 1487 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:58:22,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2018-11-18 08:58:22,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4230. [2018-11-18 08:58:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4230 states. [2018-11-18 08:58:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4230 states to 4230 states and 4522 transitions. [2018-11-18 08:58:22,196 INFO L78 Accepts]: Start accepts. Automaton has 4230 states and 4522 transitions. Word has length 742 [2018-11-18 08:58:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:22,196 INFO L480 AbstractCegarLoop]: Abstraction has 4230 states and 4522 transitions. [2018-11-18 08:58:22,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:58:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4230 states and 4522 transitions. [2018-11-18 08:58:22,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2018-11-18 08:58:22,204 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:22,204 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:58:22,204 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:22,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:22,205 INFO L82 PathProgramCache]: Analyzing trace with hash -658629070, now seen corresponding path program 1 times [2018-11-18 08:58:22,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:22,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:22,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:22,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:22,207 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1964 backedges. 785 proven. 845 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2018-11-18 08:58:23,808 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:23,808 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:23,808 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 843 with the following transitions: [2018-11-18 08:58:23,808 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:23,810 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:23,810 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:27,681 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:27,681 INFO L272 AbstractInterpreter]: Visited 193 different actions 773 times. Merged at 10 different actions 37 times. Never widened. Performed 8473 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8473 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 11 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 08:58:27,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:27,683 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:27,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:27,683 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:27,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:27,689 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:27,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1964 backedges. 1264 proven. 2 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2018-11-18 08:58:27,995 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1964 backedges. 742 proven. 119 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2018-11-18 08:58:28,375 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:28,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2018-11-18 08:58:28,376 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:28,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 08:58:28,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 08:58:28,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-11-18 08:58:28,377 INFO L87 Difference]: Start difference. First operand 4230 states and 4522 transitions. Second operand 20 states. [2018-11-18 08:58:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:32,168 INFO L93 Difference]: Finished difference Result 8629 states and 9352 transitions. [2018-11-18 08:58:32,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-11-18 08:58:32,168 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 842 [2018-11-18 08:58:32,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:32,174 INFO L225 Difference]: With dead ends: 8629 [2018-11-18 08:58:32,175 INFO L226 Difference]: Without dead ends: 4299 [2018-11-18 08:58:32,179 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1797 GetRequests, 1721 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1486 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=884, Invalid=4372, Unknown=0, NotChecked=0, Total=5256 [2018-11-18 08:58:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4299 states. [2018-11-18 08:58:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4299 to 3935. [2018-11-18 08:58:32,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3935 states. [2018-11-18 08:58:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3935 states to 3935 states and 4187 transitions. [2018-11-18 08:58:32,217 INFO L78 Accepts]: Start accepts. Automaton has 3935 states and 4187 transitions. Word has length 842 [2018-11-18 08:58:32,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:32,217 INFO L480 AbstractCegarLoop]: Abstraction has 3935 states and 4187 transitions. [2018-11-18 08:58:32,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 08:58:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3935 states and 4187 transitions. [2018-11-18 08:58:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2018-11-18 08:58:32,223 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:32,224 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:58:32,224 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:32,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:32,224 INFO L82 PathProgramCache]: Analyzing trace with hash 212752441, now seen corresponding path program 1 times [2018-11-18 08:58:32,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:32,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:32,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:32,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:32,225 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3187 backedges. 690 proven. 1606 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2018-11-18 08:58:33,759 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:33,759 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:33,759 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1074 with the following transitions: [2018-11-18 08:58:33,759 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [910], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:33,762 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:33,762 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:37,668 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:37,668 INFO L272 AbstractInterpreter]: Visited 195 different actions 784 times. Merged at 12 different actions 40 times. Widened at 1 different actions 1 times. Performed 8603 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8603 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 08:58:37,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:37,669 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:37,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:37,669 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:37,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:37,675 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:37,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3187 backedges. 1042 proven. 2 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2018-11-18 08:58:38,173 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3187 backedges. 1042 proven. 2 refuted. 0 times theorem prover too weak. 2143 trivial. 0 not checked. [2018-11-18 08:58:39,020 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:39,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-11-18 08:58:39,021 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:39,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 08:58:39,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 08:58:39,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-11-18 08:58:39,021 INFO L87 Difference]: Start difference. First operand 3935 states and 4187 transitions. Second operand 15 states. [2018-11-18 08:58:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:41,365 INFO L93 Difference]: Finished difference Result 8196 states and 8786 transitions. [2018-11-18 08:58:41,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 08:58:41,365 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1073 [2018-11-18 08:58:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:41,371 INFO L225 Difference]: With dead ends: 8196 [2018-11-18 08:58:41,371 INFO L226 Difference]: Without dead ends: 4056 [2018-11-18 08:58:41,375 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2206 GetRequests, 2161 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2018-11-18 08:58:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2018-11-18 08:58:41,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3762. [2018-11-18 08:58:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3762 states. [2018-11-18 08:58:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 3939 transitions. [2018-11-18 08:58:41,425 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 3939 transitions. Word has length 1073 [2018-11-18 08:58:41,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:41,426 INFO L480 AbstractCegarLoop]: Abstraction has 3762 states and 3939 transitions. [2018-11-18 08:58:41,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 08:58:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 3939 transitions. [2018-11-18 08:58:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2018-11-18 08:58:41,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:41,437 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:58:41,437 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:41,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:41,438 INFO L82 PathProgramCache]: Analyzing trace with hash 831716118, now seen corresponding path program 1 times [2018-11-18 08:58:41,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:41,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:41,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:41,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:41,439 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:42,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 1677 proven. 355 refuted. 0 times theorem prover too weak. 1963 trivial. 0 not checked. [2018-11-18 08:58:42,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:42,154 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:42,154 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1148 with the following transitions: [2018-11-18 08:58:42,154 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:42,156 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:42,156 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:46,110 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:46,111 INFO L272 AbstractInterpreter]: Visited 196 different actions 793 times. Merged at 13 different actions 45 times. Widened at 1 different actions 1 times. Performed 8684 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8684 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 16 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 08:58:46,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:46,114 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:46,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:46,115 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:46,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:46,120 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:46,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 2463 proven. 6 refuted. 0 times theorem prover too weak. 1526 trivial. 0 not checked. [2018-11-18 08:58:46,669 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 1677 proven. 359 refuted. 0 times theorem prover too weak. 1959 trivial. 0 not checked. [2018-11-18 08:58:47,262 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:47,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-18 08:58:47,262 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:47,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 08:58:47,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 08:58:47,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-18 08:58:47,263 INFO L87 Difference]: Start difference. First operand 3762 states and 3939 transitions. Second operand 9 states. [2018-11-18 08:58:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:58:48,203 INFO L93 Difference]: Finished difference Result 8171 states and 8597 transitions. [2018-11-18 08:58:48,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 08:58:48,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1147 [2018-11-18 08:58:48,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:58:48,209 INFO L225 Difference]: With dead ends: 8171 [2018-11-18 08:58:48,209 INFO L226 Difference]: Without dead ends: 4600 [2018-11-18 08:58:48,213 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2318 GetRequests, 2296 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2018-11-18 08:58:48,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2018-11-18 08:58:48,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4130. [2018-11-18 08:58:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4130 states. [2018-11-18 08:58:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4130 states to 4130 states and 4323 transitions. [2018-11-18 08:58:48,270 INFO L78 Accepts]: Start accepts. Automaton has 4130 states and 4323 transitions. Word has length 1147 [2018-11-18 08:58:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:58:48,271 INFO L480 AbstractCegarLoop]: Abstraction has 4130 states and 4323 transitions. [2018-11-18 08:58:48,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 08:58:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4130 states and 4323 transitions. [2018-11-18 08:58:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2018-11-18 08:58:48,284 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:58:48,285 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:58:48,285 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:58:48,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:48,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1537227557, now seen corresponding path program 1 times [2018-11-18 08:58:48,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:58:48,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:48,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:48,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:58:48,286 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:58:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4957 backedges. 1242 proven. 944 refuted. 0 times theorem prover too weak. 2771 trivial. 0 not checked. [2018-11-18 08:58:49,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:49,843 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:58:49,843 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1252 with the following transitions: [2018-11-18 08:58:49,844 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:58:49,846 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:58:49,846 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:58:56,855 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:58:56,856 INFO L272 AbstractInterpreter]: Visited 197 different actions 789 times. Merged at 11 different actions 37 times. Widened at 1 different actions 1 times. Performed 8830 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8830 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-18 08:58:56,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:58:56,866 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:58:56,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:58:56,867 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:58:56,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:58:56,877 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:58:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:58:57,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:58:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4957 backedges. 2144 proven. 2 refuted. 0 times theorem prover too weak. 2811 trivial. 0 not checked. [2018-11-18 08:58:57,497 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:58:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4957 backedges. 1251 proven. 112 refuted. 0 times theorem prover too weak. 3594 trivial. 0 not checked. [2018-11-18 08:58:58,397 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:58:58,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 08:58:58,397 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:58:58,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 08:58:58,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 08:58:58,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-18 08:58:58,399 INFO L87 Difference]: Start difference. First operand 4130 states and 4323 transitions. Second operand 17 states. [2018-11-18 08:59:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:59:00,756 INFO L93 Difference]: Finished difference Result 8340 states and 8738 transitions. [2018-11-18 08:59:00,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-18 08:59:00,757 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1251 [2018-11-18 08:59:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:59:00,763 INFO L225 Difference]: With dead ends: 8340 [2018-11-18 08:59:00,764 INFO L226 Difference]: Without dead ends: 4401 [2018-11-18 08:59:00,767 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2557 GetRequests, 2514 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=419, Invalid=1473, Unknown=0, NotChecked=0, Total=1892 [2018-11-18 08:59:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4401 states. [2018-11-18 08:59:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4401 to 3947. [2018-11-18 08:59:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3947 states. [2018-11-18 08:59:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4114 transitions. [2018-11-18 08:59:00,807 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4114 transitions. Word has length 1251 [2018-11-18 08:59:00,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:59:00,808 INFO L480 AbstractCegarLoop]: Abstraction has 3947 states and 4114 transitions. [2018-11-18 08:59:00,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 08:59:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4114 transitions. [2018-11-18 08:59:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1457 [2018-11-18 08:59:00,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:59:00,818 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:59:00,818 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:59:00,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:00,818 INFO L82 PathProgramCache]: Analyzing trace with hash -896503537, now seen corresponding path program 1 times [2018-11-18 08:59:00,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:59:00,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:00,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:00,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:00,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:59:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6268 backedges. 1105 proven. 3106 refuted. 0 times theorem prover too weak. 2057 trivial. 0 not checked. [2018-11-18 08:59:03,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:03,157 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:59:03,157 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1457 with the following transitions: [2018-11-18 08:59:03,158 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:59:03,160 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:59:03,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:59:10,167 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:59:10,168 INFO L272 AbstractInterpreter]: Visited 201 different actions 813 times. Merged at 14 different actions 45 times. Widened at 1 different actions 1 times. Performed 8950 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8950 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 18 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 08:59:10,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:10,169 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:59:10,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:10,169 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:59:10,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:10,176 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:59:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:10,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:59:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6268 backedges. 3768 proven. 2 refuted. 0 times theorem prover too weak. 2498 trivial. 0 not checked. [2018-11-18 08:59:10,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:59:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6268 backedges. 1297 proven. 367 refuted. 0 times theorem prover too weak. 4604 trivial. 0 not checked. [2018-11-18 08:59:11,933 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:59:11,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 21 [2018-11-18 08:59:11,934 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:59:11,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-18 08:59:11,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-18 08:59:11,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-11-18 08:59:11,935 INFO L87 Difference]: Start difference. First operand 3947 states and 4114 transitions. Second operand 19 states. [2018-11-18 08:59:14,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:59:14,647 INFO L93 Difference]: Finished difference Result 8067 states and 8693 transitions. [2018-11-18 08:59:14,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-11-18 08:59:14,648 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1456 [2018-11-18 08:59:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:59:14,654 INFO L225 Difference]: With dead ends: 8067 [2018-11-18 08:59:14,654 INFO L226 Difference]: Without dead ends: 4311 [2018-11-18 08:59:14,658 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2996 GetRequests, 2936 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=805, Invalid=2735, Unknown=0, NotChecked=0, Total=3540 [2018-11-18 08:59:14,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2018-11-18 08:59:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 3947. [2018-11-18 08:59:14,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3947 states. [2018-11-18 08:59:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4091 transitions. [2018-11-18 08:59:14,706 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4091 transitions. Word has length 1456 [2018-11-18 08:59:14,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:59:14,707 INFO L480 AbstractCegarLoop]: Abstraction has 3947 states and 4091 transitions. [2018-11-18 08:59:14,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-18 08:59:14,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4091 transitions. [2018-11-18 08:59:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2018-11-18 08:59:14,717 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:59:14,717 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 08:59:14,717 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:59:14,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:14,718 INFO L82 PathProgramCache]: Analyzing trace with hash 925674791, now seen corresponding path program 1 times [2018-11-18 08:59:14,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:59:14,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:14,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:14,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:14,719 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:59:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:16,432 INFO L134 CoverageAnalysis]: Checked inductivity of 7510 backedges. 1556 proven. 1168 refuted. 0 times theorem prover too weak. 4786 trivial. 0 not checked. [2018-11-18 08:59:16,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:16,432 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:59:16,432 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1576 with the following transitions: [2018-11-18 08:59:16,433 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:59:16,434 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:59:16,434 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:59:23,452 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:59:23,452 INFO L272 AbstractInterpreter]: Visited 202 different actions 808 times. Merged at 11 different actions 36 times. Never widened. Performed 9016 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9016 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 19 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-18 08:59:23,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:23,458 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:59:23,459 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:23,459 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:59:23,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:23,465 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:59:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:23,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:59:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7510 backedges. 2688 proven. 2 refuted. 0 times theorem prover too weak. 4820 trivial. 0 not checked. [2018-11-18 08:59:24,301 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:59:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 7510 backedges. 1565 proven. 112 refuted. 0 times theorem prover too weak. 5833 trivial. 0 not checked. [2018-11-18 08:59:25,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:59:25,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 08:59:25,503 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:59:25,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 08:59:25,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 08:59:25,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-11-18 08:59:25,504 INFO L87 Difference]: Start difference. First operand 3947 states and 4091 transitions. Second operand 17 states. [2018-11-18 08:59:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:59:27,270 INFO L93 Difference]: Finished difference Result 7964 states and 8254 transitions. [2018-11-18 08:59:27,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 08:59:27,270 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1575 [2018-11-18 08:59:27,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:59:27,276 INFO L225 Difference]: With dead ends: 7964 [2018-11-18 08:59:27,276 INFO L226 Difference]: Without dead ends: 4208 [2018-11-18 08:59:27,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3198 GetRequests, 3159 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=336, Invalid=1224, Unknown=0, NotChecked=0, Total=1560 [2018-11-18 08:59:27,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4208 states. [2018-11-18 08:59:27,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4208 to 3947. [2018-11-18 08:59:27,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3947 states. [2018-11-18 08:59:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4074 transitions. [2018-11-18 08:59:27,313 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4074 transitions. Word has length 1575 [2018-11-18 08:59:27,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:59:27,314 INFO L480 AbstractCegarLoop]: Abstraction has 3947 states and 4074 transitions. [2018-11-18 08:59:27,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 08:59:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4074 transitions. [2018-11-18 08:59:27,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1705 [2018-11-18 08:59:27,325 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:59:27,326 INFO L375 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:59:27,326 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:59:27,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:27,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1910971973, now seen corresponding path program 1 times [2018-11-18 08:59:27,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:59:27,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:27,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:27,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:27,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:59:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8916 backedges. 1940 proven. 5325 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2018-11-18 08:59:30,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:30,607 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:59:30,607 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1705 with the following transitions: [2018-11-18 08:59:30,607 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:59:30,609 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:59:30,609 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:59:34,553 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:59:34,553 INFO L272 AbstractInterpreter]: Visited 203 different actions 819 times. Merged at 13 different actions 43 times. Widened at 1 different actions 1 times. Performed 9088 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9088 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 20 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-18 08:59:34,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:34,554 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:59:34,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:34,554 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:59:34,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:34,561 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:59:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:34,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:59:35,558 INFO L134 CoverageAnalysis]: Checked inductivity of 8916 backedges. 2874 proven. 85 refuted. 0 times theorem prover too weak. 5957 trivial. 0 not checked. [2018-11-18 08:59:35,558 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 08:59:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 8916 backedges. 2950 proven. 122 refuted. 0 times theorem prover too weak. 5844 trivial. 0 not checked. [2018-11-18 08:59:37,074 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 08:59:37,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 8, 9] total 39 [2018-11-18 08:59:37,074 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 08:59:37,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-18 08:59:37,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-18 08:59:37,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2018-11-18 08:59:37,076 INFO L87 Difference]: Start difference. First operand 3947 states and 4074 transitions. Second operand 33 states. [2018-11-18 08:59:45,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:59:45,929 INFO L93 Difference]: Finished difference Result 8929 states and 9367 transitions. [2018-11-18 08:59:45,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-11-18 08:59:45,930 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1704 [2018-11-18 08:59:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:59:45,940 INFO L225 Difference]: With dead ends: 8929 [2018-11-18 08:59:45,940 INFO L226 Difference]: Without dead ends: 4985 [2018-11-18 08:59:45,945 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3569 GetRequests, 3439 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5042 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2800, Invalid=13712, Unknown=0, NotChecked=0, Total=16512 [2018-11-18 08:59:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2018-11-18 08:59:46,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 4136. [2018-11-18 08:59:46,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4136 states. [2018-11-18 08:59:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4136 states to 4136 states and 4259 transitions. [2018-11-18 08:59:46,006 INFO L78 Accepts]: Start accepts. Automaton has 4136 states and 4259 transitions. Word has length 1704 [2018-11-18 08:59:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:59:46,007 INFO L480 AbstractCegarLoop]: Abstraction has 4136 states and 4259 transitions. [2018-11-18 08:59:46,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-18 08:59:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 4136 states and 4259 transitions. [2018-11-18 08:59:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1959 [2018-11-18 08:59:46,031 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:59:46,032 INFO L375 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 08:59:46,032 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:59:46,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:46,032 INFO L82 PathProgramCache]: Analyzing trace with hash -358606529, now seen corresponding path program 1 times [2018-11-18 08:59:46,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 08:59:46,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:46,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:46,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:59:46,033 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 08:59:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12086 backedges. 2561 proven. 6837 refuted. 0 times theorem prover too weak. 2688 trivial. 0 not checked. [2018-11-18 08:59:49,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:49,706 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 08:59:49,706 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1959 with the following transitions: [2018-11-18 08:59:49,706 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 08:59:49,708 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 08:59:49,708 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 08:59:53,661 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 08:59:53,661 INFO L272 AbstractInterpreter]: Visited 204 different actions 814 times. Merged at 12 different actions 34 times. Never widened. Performed 9114 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9114 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 21 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-18 08:59:53,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:59:53,662 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 08:59:53,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 08:59:53,662 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 08:59:53,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:59:53,669 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 08:59:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:59:53,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:59:55,911 WARN L180 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-11-18 08:59:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 12086 backedges. 5834 proven. 12 refuted. 0 times theorem prover too weak. 6240 trivial. 0 not checked. [2018-11-18 08:59:56,913 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:00:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12086 backedges. 4365 proven. 718 refuted. 0 times theorem prover too weak. 7003 trivial. 0 not checked. [2018-11-18 09:00:01,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:00:01,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 9, 11] total 41 [2018-11-18 09:00:01,543 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:00:01,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-18 09:00:01,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-18 09:00:01,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1446, Unknown=2, NotChecked=0, Total=1640 [2018-11-18 09:00:01,544 INFO L87 Difference]: Start difference. First operand 4136 states and 4259 transitions. Second operand 33 states. [2018-11-18 09:00:12,529 WARN L180 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2018-11-18 09:00:20,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:00:20,905 INFO L93 Difference]: Finished difference Result 10580 states and 11220 transitions. [2018-11-18 09:00:20,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-11-18 09:00:20,905 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1958 [2018-11-18 09:00:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:00:20,912 INFO L225 Difference]: With dead ends: 10580 [2018-11-18 09:00:20,912 INFO L226 Difference]: Without dead ends: 5973 [2018-11-18 09:00:20,919 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4098 GetRequests, 3946 SyntacticMatches, 3 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6994 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=3626, Invalid=19022, Unknown=2, NotChecked=0, Total=22650 [2018-11-18 09:00:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2018-11-18 09:00:20,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 5036. [2018-11-18 09:00:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5036 states. [2018-11-18 09:00:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 5169 transitions. [2018-11-18 09:00:20,986 INFO L78 Accepts]: Start accepts. Automaton has 5036 states and 5169 transitions. Word has length 1958 [2018-11-18 09:00:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:00:20,987 INFO L480 AbstractCegarLoop]: Abstraction has 5036 states and 5169 transitions. [2018-11-18 09:00:20,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-18 09:00:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5036 states and 5169 transitions. [2018-11-18 09:00:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2125 [2018-11-18 09:00:21,004 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:00:21,005 INFO L375 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-18 09:00:21,005 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:00:21,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:00:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash -370637272, now seen corresponding path program 1 times [2018-11-18 09:00:21,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:00:21,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:00:21,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:00:21,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:00:21,006 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:00:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:00:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 13913 backedges. 2017 proven. 8202 refuted. 0 times theorem prover too weak. 3694 trivial. 0 not checked. [2018-11-18 09:00:26,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:00:26,475 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:00:26,475 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 2125 with the following transitions: [2018-11-18 09:00:26,475 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [938], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:00:26,477 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:00:26,477 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:00:33,576 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:00:33,577 INFO L272 AbstractInterpreter]: Visited 206 different actions 831 times. Merged at 14 different actions 43 times. Widened at 1 different actions 1 times. Performed 9302 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9302 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 23 fixpoints after 13 different actions. Largest state had 24 variables. [2018-11-18 09:00:33,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:00:33,578 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:00:33,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:00:33,578 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:00:33,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:00:33,585 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:00:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:00:33,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:00:43,868 WARN L180 SmtUtils]: Spent 9.81 s on a formula simplification. DAG size of input: 484 DAG size of output: 51 [2018-11-18 09:00:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 13913 backedges. 2263 proven. 39 refuted. 0 times theorem prover too weak. 11611 trivial. 0 not checked. [2018-11-18 09:00:45,275 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:00:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 13913 backedges. 2263 proven. 39 refuted. 0 times theorem prover too weak. 11611 trivial. 0 not checked. [2018-11-18 09:00:46,976 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:00:46,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 8, 7] total 42 [2018-11-18 09:00:46,977 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:00:46,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-11-18 09:00:46,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-11-18 09:00:46,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1508, Unknown=0, NotChecked=0, Total=1722 [2018-11-18 09:00:46,979 INFO L87 Difference]: Start difference. First operand 5036 states and 5169 transitions. Second operand 38 states. [2018-11-18 09:00:52,028 WARN L180 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2018-11-18 09:00:56,487 WARN L180 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2018-11-18 09:00:59,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:00:59,144 INFO L93 Difference]: Finished difference Result 10630 states and 11089 transitions. [2018-11-18 09:00:59,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-11-18 09:00:59,144 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 2124 [2018-11-18 09:00:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:00:59,152 INFO L225 Difference]: With dead ends: 10630 [2018-11-18 09:00:59,152 INFO L226 Difference]: Without dead ends: 5780 [2018-11-18 09:00:59,156 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4394 GetRequests, 4267 SyntacticMatches, 11 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4326 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=2222, Invalid=11584, Unknown=0, NotChecked=0, Total=13806 [2018-11-18 09:00:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2018-11-18 09:00:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5032. [2018-11-18 09:00:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5032 states. [2018-11-18 09:00:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 5128 transitions. [2018-11-18 09:00:59,222 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 5128 transitions. Word has length 2124 [2018-11-18 09:00:59,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:00:59,223 INFO L480 AbstractCegarLoop]: Abstraction has 5032 states and 5128 transitions. [2018-11-18 09:00:59,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-11-18 09:00:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 5128 transitions. [2018-11-18 09:00:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2320 [2018-11-18 09:00:59,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:00:59,243 INFO L375 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2018-11-18 09:00:59,243 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:00:59,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:00:59,243 INFO L82 PathProgramCache]: Analyzing trace with hash -775462712, now seen corresponding path program 1 times [2018-11-18 09:00:59,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:00:59,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:00:59,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:00:59,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:00:59,244 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:00:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 16163 backedges. 7064 proven. 2593 refuted. 0 times theorem prover too weak. 6506 trivial. 0 not checked. [2018-11-18 09:01:01,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:01:01,466 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:01:01,466 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 2320 with the following transitions: [2018-11-18 09:01:01,466 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [938], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:01:01,468 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:01:01,468 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:01:05,408 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:01:05,408 INFO L272 AbstractInterpreter]: Visited 205 different actions 824 times. Merged at 12 different actions 40 times. Widened at 1 different actions 1 times. Performed 9218 root evaluator evaluations with a maximum evaluation depth of 21. Performed 9218 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 22 fixpoints after 14 different actions. Largest state had 24 variables. [2018-11-18 09:01:05,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:05,410 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:01:05,410 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:01:05,410 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:01:05,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:05,418 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:01:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:05,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:01:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16163 backedges. 5863 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2018-11-18 09:01:06,883 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:01:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 16163 backedges. 2633 proven. 244 refuted. 0 times theorem prover too weak. 13286 trivial. 0 not checked. [2018-11-18 09:01:08,292 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:01:08,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2018-11-18 09:01:08,293 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:01:08,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:01:08,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:01:08,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 09:01:08,294 INFO L87 Difference]: Start difference. First operand 5032 states and 5128 transitions. Second operand 10 states. [2018-11-18 09:01:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:01:09,221 INFO L93 Difference]: Finished difference Result 9457 states and 9635 transitions. [2018-11-18 09:01:09,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 09:01:09,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 2319 [2018-11-18 09:01:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:01:09,226 INFO L225 Difference]: With dead ends: 9457 [2018-11-18 09:01:09,226 INFO L226 Difference]: Without dead ends: 4801 [2018-11-18 09:01:09,229 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4672 GetRequests, 4653 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:01:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4801 states. [2018-11-18 09:01:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4801 to 4654. [2018-11-18 09:01:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4654 states. [2018-11-18 09:01:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4654 states to 4654 states and 4728 transitions. [2018-11-18 09:01:09,279 INFO L78 Accepts]: Start accepts. Automaton has 4654 states and 4728 transitions. Word has length 2319 [2018-11-18 09:01:09,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:01:09,280 INFO L480 AbstractCegarLoop]: Abstraction has 4654 states and 4728 transitions. [2018-11-18 09:01:09,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:01:09,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4654 states and 4728 transitions. [2018-11-18 09:01:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2385 [2018-11-18 09:01:09,300 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:01:09,301 INFO L375 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 14, 14, 13, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:01:09,301 INFO L423 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:01:09,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:09,302 INFO L82 PathProgramCache]: Analyzing trace with hash -636899826, now seen corresponding path program 1 times [2018-11-18 09:01:09,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:01:09,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:09,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:09,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:01:09,302 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:01:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 17849 backedges. 2637 proven. 119 refuted. 0 times theorem prover too weak. 15093 trivial. 0 not checked. [2018-11-18 09:01:11,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:01:11,100 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:01:11,100 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 2385 with the following transitions: [2018-11-18 09:01:11,101 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [245], [247], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [694], [695], [699], [703], [707], [711], [715], [718], [719], [723], [726], [727], [731], [735], [739], [742], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [938], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:01:11,102 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:01:11,102 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:01:18,184 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:01:18,184 INFO L272 AbstractInterpreter]: Visited 207 different actions 838 times. Merged at 12 different actions 46 times. Widened at 1 different actions 2 times. Performed 9369 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9369 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 24 fixpoints after 15 different actions. Largest state had 24 variables. [2018-11-18 09:01:18,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:01:18,186 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:01:18,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:01:18,186 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:01:18,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:01:18,193 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:01:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:01:18,438 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:01:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 17849 backedges. 4444 proven. 2 refuted. 0 times theorem prover too weak. 13403 trivial. 0 not checked. [2018-11-18 09:01:19,695 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:01:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 17849 backedges. 2637 proven. 119 refuted. 0 times theorem prover too weak. 15093 trivial. 0 not checked. [2018-11-18 09:01:21,180 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:01:21,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-11-18 09:01:21,181 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:01:21,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:01:21,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:01:21,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:01:21,182 INFO L87 Difference]: Start difference. First operand 4654 states and 4728 transitions. Second operand 7 states. [2018-11-18 09:01:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:01:21,739 INFO L93 Difference]: Finished difference Result 7264 states and 7395 transitions. [2018-11-18 09:01:21,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:01:21,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2384 [2018-11-18 09:01:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:01:21,740 INFO L225 Difference]: With dead ends: 7264 [2018-11-18 09:01:21,740 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:01:21,744 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4779 GetRequests, 4766 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-11-18 09:01:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:01:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:01:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:01:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:01:21,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2384 [2018-11-18 09:01:21,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:01:21,744 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:01:21,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:01:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:01:21,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:01:21,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:01:21,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:22,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,089 WARN L180 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 817 DAG size of output: 653 [2018-11-18 09:01:23,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:23,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:01:24,194 WARN L180 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 841 DAG size of output: 674 [2018-11-18 09:01:25,736 WARN L180 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 372 DAG size of output: 151 [2018-11-18 09:01:28,792 WARN L180 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 638 DAG size of output: 140 [2018-11-18 09:01:31,684 WARN L180 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 662 DAG size of output: 132 [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 09:01:31,686 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 09:01:31,687 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 09:01:31,688 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,689 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 09:01:31,690 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse36 (= 7 |old(~a21~0)|))) (let ((.cse32 (not .cse36)) (.cse25 (< 7 |old(~a15~0)|)) (.cse21 (= ~a24~0 |old(~a24~0)|)) (.cse24 (= |old(~a15~0)| ~a15~0)) (.cse23 (= ~a21~0 |old(~a21~0)|)) (.cse15 (= 1 ~a24~0)) (.cse17 (= 9 ~a15~0)) (.cse14 (= ~a12~0 |old(~a12~0)|)) (.cse18 (= 8 ~a15~0)) (.cse19 (= ~a24~0 1)) (.cse29 (+ |old(~a12~0)| 43)) (.cse30 (+ ~a12~0 43))) (let ((.cse16 (= 10 ~a21~0)) (.cse22 (<= .cse30 0)) (.cse4 (not (= 6 |old(~a15~0)|))) (.cse13 (not (= 10 |old(~a21~0)|))) (.cse8 (< 76 |old(~a12~0)|)) (.cse31 (<= |old(~a12~0)| 80)) (.cse26 (< 0 .cse29)) (.cse27 (and .cse14 (= ~a21~0 9) .cse18 .cse19)) (.cse28 (not (= 9 |old(~a21~0)|))) (.cse0 (and .cse14 .cse23 .cse15 .cse17)) (.cse2 (not (= 9 |old(~a15~0)|))) (.cse6 (< 11 |old(~a12~0)|)) (.cse5 (not (= 5 |old(~a15~0)|))) (.cse35 (and .cse21 .cse23 .cse24)) (.cse34 (or .cse32 .cse25)) (.cse7 (< |old(~a12~0)| 19)) (.cse1 (not (= 6 |old(~a21~0)|))) (.cse9 (not (= 8 |old(~a15~0)|))) (.cse11 (and .cse14 .cse23 .cse18 .cse19)) (.cse10 (= |calculate_output_#in~input| 0)) (.cse20 (not (= |old(~a15~0)| 8))) (.cse12 (not (= 8 |old(~a21~0)|))) (.cse33 (< |old(~a12~0)| 81)) (.cse3 (not (= 1 |old(~a24~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (< 95434 |old(~a12~0)|) (<= |old(~a12~0)| 95380)) (or .cse4 (= 6 ~a15~0)) (or (<= ~a12~0 11) .cse1 .cse3 .cse5 .cse6) (or .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse3) (or .cse2 .cse13 (and .cse14 .cse15 .cse16 .cse17) .cse3 .cse6) (or (and .cse14 .cse18 .cse19 .cse16) .cse13 .cse10 .cse20 .cse3 .cse6) (or .cse3 (and .cse21 .cse22 .cse23 .cse24) .cse25 .cse26) (or .cse7 .cse8 .cse10 .cse20 .cse27 .cse28 .cse3) (or .cse22 .cse4 .cse26) (or .cse1 (< 80 |old(~a12~0)|) (<= .cse29 0) .cse3 .cse5 (and (<= ~a12~0 80) (< 0 .cse30))) (or .cse13 .cse3 .cse9 .cse10 .cse31 .cse11) (or .cse11 (or .cse32 .cse8 .cse10) .cse3 .cse20) (or .cse1 .cse11 .cse3 .cse9 .cse10 .cse26) (or (< 72 |old(~a12~0)|) .cse12 .cse0 .cse2 .cse3 (<= |old(~a12~0)| 18)) (or .cse0 (< |old(~a21~0)| 9) .cse2 .cse3 .cse31) (or (and .cse14 .cse21 .cse23 .cse24) .cse1 .cse5 .cse26) (or .cse28 .cse27 (or .cse9 .cse10 .cse3 .cse6)) (or .cse28 .cse2 .cse3 .cse0) (or (and (and .cse14 .cse23 .cse15) .cse24) .cse2 (or (and .cse32 .cse12) .cse3) .cse33) (or .cse0 .cse12 .cse2 .cse3 .cse6) (or .cse34 (< 0 (+ |old(~a12~0)| 460233)) .cse3 .cse14) (or .cse35 .cse3 .cse5) (or .cse36 .cse3 .cse35 .cse25) (or .cse34 .cse7 .cse3 (and .cse14 .cse23 .cse24 .cse15)) (or .cse1 (< |old(~a12~0)| 518246) .cse3 .cse9 .cse10 .cse11) (or .cse10 .cse20 .cse12 (and .cse14 (= ~a21~0 8) .cse24 .cse19) .cse33 .cse3 (< 73282 |old(~a12~0)|)))))) [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,691 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 09:01:31,692 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 09:01:31,693 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 09:01:31,694 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 09:01:31,695 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:01:31,696 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) [2018-11-18 09:01:31,696 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:01:31,696 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:01:31,697 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (and (= 8 ~a15~0) (= (+ ~a12~0 49) 0) (= ~a24~0 1) (= ~a21~0 7)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-18 09:01:31,697 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 09:01:31,697 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse25 (= 7 ~a21~0))) (let ((.cse21 (not .cse25)) (.cse13 (not (= main_~input~0 0))) (.cse14 (= ~a15~0 8)) (.cse15 (= ~a24~0 1)) (.cse26 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|))))) (let ((.cse23 (<= ~a12~0 76)) (.cse11 (= 10 ~a21~0)) (.cse5 (and (not (= ~a21~0 0)) .cse21 .cse13 .cse14 .cse15 .cse26)) (.cse19 (= 6 ~a21~0)) (.cse24 (= ~a21~0 10)) (.cse0 (= 1 ~a24~0))) (let ((.cse1 (= 5 ~a15~0)) (.cse16 (<= (+ ~a12~0 43) 0)) (.cse3 (< 80 ~a12~0)) (.cse2 (and .cse21 .cse0 .cse26)) (.cse22 (or (and .cse14 (= ~a21~0 7)) (and .cse14 (not (= ~a12~0 0)) .cse24))) (.cse17 (= ~a21~0 9)) (.cse8 (= 8 ~a21~0)) (.cse7 (= ~a24~0 |old(~a24~0)|)) (.cse20 (<= ~a15~0 7)) (.cse12 (= ~a21~0 6)) (.cse18 (and (and .cse23 (not .cse11) .cse5 (not .cse19)) (or (and (<= |old(~a21~0)| 10) (<= |old(~a12~0)| 80)) (<= |old(~a21~0)| 6)))) (.cse6 (= ~a21~0 8)) (.cse9 (<= 19 ~a12~0)) (.cse10 (<= ~a12~0 11)) (.cse4 (= 9 ~a15~0))) (or (and .cse0 .cse1) (and (and (<= 9 ~a21~0) .cse2 .cse3) .cse4) (not (= 8 |old(~a15~0)|)) (and .cse3 (and (<= ~a12~0 73282) .cse5 .cse6)) (and (and (and .cse7 (<= ~a12~0 72)) .cse8 .cse9) .cse4) (and .cse5 .cse10 .cse11) (= 6 ~a15~0) (and .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse17 (and .cse18 .cse9)) (and .cse19 .cse1 .cse16) (not (= 7 |old(~a21~0)|)) (and .cse20 .cse7 .cse16) (not (= 0 (+ |old(~a12~0)| 49))) (and (and .cse21 .cse13 .cse22 .cse15) .cse3) (and (= 9 ~a21~0) .cse2 .cse4) (and (and .cse23 (and .cse13 .cse22 .cse7)) (not .cse24)) (and (and .cse8 .cse10 .cse0) .cse4) (and (and .cse5 .cse10) .cse17) (and (and .cse7 .cse20) .cse9) (and (and (and .cse13 .cse15) (= 8 ~a15~0)) .cse19 (<= 518246 ~a12~0)) (and (<= 81 ~a12~0) (or (and .cse0 .cse25) (and .cse8 .cse7)) .cse4) (and .cse21 .cse0 .cse20) (and .cse4 (and .cse0 (and (and (<= ~a12~0 95434) .cse12) (<= 95381 ~a12~0)))) (and (and .cse18 .cse6) .cse9) (not (= 1 |old(~a24~0)|)) (and (and .cse0 .cse10 .cse11) .cse4)))))) [2018-11-18 09:01:31,697 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 09:01:31,697 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 09:01:31,697 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 09:01:31,697 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse21 (= 7 ~a21~0))) (let ((.cse26 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)))) (.cse16 (not .cse21)) (.cse24 (= ~a15~0 8)) (.cse23 (= ~a24~0 1))) (let ((.cse19 (<= ~a12~0 76)) (.cse20 (= ~a21~0 10)) (.cse25 (and .cse26 (not (= ~a21~0 0)) .cse16 .cse24 .cse23)) (.cse15 (<= ~a12~0 11)) (.cse3 (= 1 ~a24~0))) (let ((.cse4 (= 5 ~a15~0)) (.cse7 (and .cse16 .cse3 .cse26)) (.cse5 (and .cse25 .cse15)) (.cse2 (= ~a21~0 9)) (.cse8 (< 80 ~a12~0)) (.cse17 (or (and .cse23 (= ~a21~0 7)) (and (not (= ~a12~0 0)) .cse23 .cse20))) (.cse11 (= 8 ~a21~0)) (.cse10 (= ~a24~0 |old(~a24~0)|)) (.cse13 (<= ~a15~0 7)) (.cse12 (<= (+ ~a12~0 43) 0)) (.cse18 (= ~a15~0 |old(~a15~0)|)) (.cse14 (= ~a21~0 8)) (.cse0 (and .cse19 .cse25)) (.cse1 (<= 19 ~a12~0)) (.cse6 (= 10 ~a21~0)) (.cse9 (= 9 ~a15~0)) (.cse22 (= ~a21~0 6))) (or (and (and .cse0 .cse1) .cse2) (and .cse3 .cse4) (and .cse5 .cse6) (and (and (<= 9 ~a21~0) .cse7 .cse8) .cse9) (not (= 8 |old(~a15~0)|)) (and (and (and .cse10 (<= ~a12~0 72)) .cse11 .cse1) .cse9) (= 6 ~a15~0) (and (= 6 ~a21~0) .cse4 .cse12) (not (= 7 |old(~a21~0)|)) (and .cse13 .cse10 .cse12) (not (= 0 (+ |old(~a12~0)| 49))) (and (= 9 ~a21~0) .cse7 .cse9) (and (and (and (<= ~a12~0 73282) .cse10 .cse14) .cse8) (= |old(~a15~0)| ~a15~0)) (and .cse5 .cse2) (and (and .cse11 .cse15 .cse3) .cse9) (and (and .cse16 .cse17) .cse8 .cse18) (and (and (and .cse19 .cse17) (= 8 ~a15~0)) (not .cse20)) (and (and .cse10 .cse13) .cse1) (and (<= 81 ~a12~0) (or (and .cse3 .cse21) (and .cse11 .cse10)) .cse9) (and .cse16 .cse3 .cse13) (and (and .cse22 .cse23 .cse12) .cse18) (and (and .cse14 .cse0) .cse1) (and .cse9 (and .cse3 (and (and (<= ~a12~0 95434) .cse22) (<= 95381 ~a12~0)))) (not (= 1 |old(~a24~0)|)) (and (and .cse3 .cse15 .cse6) .cse9) (and (<= 518246 ~a12~0) (and .cse22 .cse24 .cse23))))))) [2018-11-18 09:01:31,697 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 09:01:31,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:01:31 BoogieIcfgContainer [2018-11-18 09:01:31,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:01:31,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:01:31,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:01:31,709 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:01:31,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:56:30" (3/4) ... [2018-11-18 09:01:31,712 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:01:31,717 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:01:31,717 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 09:01:31,717 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:01:31,730 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 09:01:31,730 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:01:31,750 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((a12 <= 76 && ((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12) && a21 == 9) || (1 == a24 && 5 == a15)) || (((((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && a12 <= 11) && 10 == a21)) || (((9 <= a21 && (!(7 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 80 < a12) && 9 == a15)) || !(8 == \old(a15))) || ((((a24 == \old(a24) && a12 <= 72) && 8 == a21) && 19 <= a12) && 9 == a15)) || 6 == a15) || ((6 == a21 && 5 == a15) && a12 + 43 <= 0)) || !(7 == \old(a21))) || ((a15 <= 7 && a24 == \old(a24)) && a12 + 43 <= 0)) || !(0 == \old(a12) + 49)) || ((9 == a21 && (!(7 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 9 == a15)) || ((((a12 <= 73282 && a24 == \old(a24)) && a21 == 8) && 80 < a12) && \old(a15) == a15)) || (((((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && a12 <= 11) && a21 == 9)) || (((8 == a21 && a12 <= 11) && 1 == a24) && 9 == a15)) || (((!(7 == a21) && ((a24 == 1 && a21 == 7) || ((!(a12 == 0) && a24 == 1) && a21 == 10))) && 80 < a12) && a15 == \old(a15))) || (((a12 <= 76 && ((a24 == 1 && a21 == 7) || ((!(a12 == 0) && a24 == 1) && a21 == 10))) && 8 == a15) && !(a21 == 10))) || ((a24 == \old(a24) && a15 <= 7) && 19 <= a12)) || ((81 <= a12 && ((1 == a24 && 7 == a21) || (8 == a21 && a24 == \old(a24)))) && 9 == a15)) || ((!(7 == a21) && 1 == a24) && a15 <= 7)) || (((a21 == 6 && a24 == 1) && a12 + 43 <= 0) && a15 == \old(a15))) || ((a21 == 8 && a12 <= 76 && ((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12)) || (9 == a15 && 1 == a24 && (a12 <= 95434 && a21 == 6) && 95381 <= a12)) || !(1 == \old(a24))) || (((1 == a24 && a12 <= 11) && 10 == a21) && 9 == a15)) || (518246 <= a12 && (a21 == 6 && a15 == 8) && a24 == 1) [2018-11-18 09:01:31,832 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6cab4f9b-4fe2-4531-b425-223eb376cd0f/bin-2019/utaipan/witness.graphml [2018-11-18 09:01:31,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:01:31,833 INFO L168 Benchmark]: Toolchain (without parser) took 302984.07 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.1 GB). Free memory was 956.4 MB in the beginning and 1.6 GB in the end (delta: -607.9 MB). Peak memory consumption was 3.5 GB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,834 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:01:31,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 913.5 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 913.5 MB in the beginning and 1.2 GB in the end (delta: -257.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,834 INFO L168 Benchmark]: Boogie Preprocessor took 51.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,835 INFO L168 Benchmark]: RCFGBuilder took 1090.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,835 INFO L168 Benchmark]: TraceAbstraction took 301241.24 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -521.4 MB). Peak memory consumption was 4.4 GB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,835 INFO L168 Benchmark]: Witness Printer took 123.83 ms. Allocated memory is still 5.1 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 4.6 kB). Peak memory consumption was 4.6 kB. Max. memory is 11.5 GB. [2018-11-18 09:01:31,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 913.5 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 913.5 MB in the beginning and 1.2 GB in the end (delta: -257.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1090.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 301241.24 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -521.4 MB). Peak memory consumption was 4.4 GB. Max. memory is 11.5 GB. * Witness Printer took 123.83 ms. Allocated memory is still 5.1 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 4.6 kB). Peak memory consumption was 4.6 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 112]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a12 <= 76 && ((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12) && a21 == 9) || (1 == a24 && 5 == a15)) || (((((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && a12 <= 11) && 10 == a21)) || (((9 <= a21 && (!(7 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 80 < a12) && 9 == a15)) || !(8 == \old(a15))) || ((((a24 == \old(a24) && a12 <= 72) && 8 == a21) && 19 <= a12) && 9 == a15)) || 6 == a15) || ((6 == a21 && 5 == a15) && a12 + 43 <= 0)) || !(7 == \old(a21))) || ((a15 <= 7 && a24 == \old(a24)) && a12 + 43 <= 0)) || !(0 == \old(a12) + 49)) || ((9 == a21 && (!(7 == a21) && 1 == a24) && (!(6 == \old(a21)) || !(5 == \old(a15)))) && 9 == a15)) || ((((a12 <= 73282 && a24 == \old(a24)) && a21 == 8) && 80 < a12) && \old(a15) == a15)) || (((((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && a12 <= 11) && a21 == 9)) || (((8 == a21 && a12 <= 11) && 1 == a24) && 9 == a15)) || (((!(7 == a21) && ((a24 == 1 && a21 == 7) || ((!(a12 == 0) && a24 == 1) && a21 == 10))) && 80 < a12) && a15 == \old(a15))) || (((a12 <= 76 && ((a24 == 1 && a21 == 7) || ((!(a12 == 0) && a24 == 1) && a21 == 10))) && 8 == a15) && !(a21 == 10))) || ((a24 == \old(a24) && a15 <= 7) && 19 <= a12)) || ((81 <= a12 && ((1 == a24 && 7 == a21) || (8 == a21 && a24 == \old(a24)))) && 9 == a15)) || ((!(7 == a21) && 1 == a24) && a15 <= 7)) || (((a21 == 6 && a24 == 1) && a12 + 43 <= 0) && a15 == \old(a15))) || ((a21 == 8 && a12 <= 76 && ((((!(6 == \old(a21)) || !(5 == \old(a15))) && !(a21 == 0)) && !(7 == a21)) && a15 == 8) && a24 == 1) && 19 <= a12)) || (9 == a15 && 1 == a24 && (a12 <= 95434 && a21 == 6) && 95381 <= a12)) || !(1 == \old(a24))) || (((1 == a24 && a12 <= 11) && 10 == a21) && 9 == a15)) || (518246 <= a12 && (a21 == 6 && a15 == 8) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 301.1s OverallTime, 22 OverallIterations, 19 TraceHistogramMax, 139.5s AutomataDifference, 0.0s DeadEndRemovalTime, 9.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 2294 SDtfs, 70759 SDslu, 6554 SDs, 0 SdLazy, 91948 SolverSat, 8648 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 100.2s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 43064 GetRequests, 42162 SyntacticMatches, 45 SemanticMatches, 857 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21585 ImplicationChecksByTransitivity, 37.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5479occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 78.7s AbstIntTime, 19 AbstIntIterations, 4 AbstIntStrong, 0.9972766385163624 AbsIntWeakeningRatio, 0.08969866853538892 AbsIntAvgWeakeningVarsNumRemoved, 16.009810791871057 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 22 MinimizatonAttempts, 5681 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 468 PreInvPairs, 624 NumberOfFragments, 1841 HoareAnnotationTreeSize, 468 FomulaSimplifications, 20402986 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19366532 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 45.0s InterpolantComputationTime, 42276 NumberOfCodeBlocks, 42276 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 62492 ConstructedInterpolants, 260 QuantifiedInterpolants, 316809505 SizeOfPredicates, 25 NumberOfNonLiveVariables, 27715 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 52 InterpolantComputations, 3 PerfectInterpolantSequences, 270182/305550 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...